.page-faq {
  --faq-gap: clamp(14px, 2.4vw, 24px);
  --faq-rule: rgba(42, 29, 22, .22);
  position: relative;
  color: var(--text);
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate-300);
}

.page-faq .breadcrumb a {
  color: var(--cyan-200);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--cyan-400);
}

.page-faq .breadcrumb-sep {
  color: rgba(155, 243, 234, .45);
}

.page-faq .section {
  padding-top: clamp(40px, 6vw, 76px);
}

.page-faq .section-head .display {
  margin: 6px 0 12px;
  color: var(--cream-050);
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.28;
  letter-spacing: .02em;
  font-weight: 900;
}

.page-faq .section-head .lede {
  max-width: 46em;
  color: var(--slate-300);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 10px;
  padding: clamp(24px, 5vw, 56px) clamp(20px, 4vw, 48px) clamp(26px, 5vw, 52px);
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(120% 100% at 92% -10%, rgba(201, 191, 232, .20), transparent 62%),
    linear-gradient(158deg, var(--ink-800) 0%, var(--ink-900) 72%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), transparent 88%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(47, 227, 208, .28);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan-200);
}

.page-faq .faq-hero__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber-400);
  box-shadow: 0 0 0 4px rgba(255, 180, 84, .18);
}

.page-faq .faq-hero__bar-sep {
  width: 46px;
  height: 1px;
  background: var(--line-strong);
}

.page-faq .faq-hero h1 {
  margin: 20px 0 18px;
  max-width: 18em;
  font-size: clamp(27px, 4.4vw, 46px);
  line-height: 1.26;
  letter-spacing: .015em;
  font-weight: 900;
  color: var(--cream-050);
}

.page-faq .faq-hero .lede {
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(230, 233, 244, .82);
}

.page-faq .faq-jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  font-size: 13px;
  letter-spacing: .03em;
  color: var(--cyan-200);
  text-decoration: none;
  background: rgba(47, 227, 208, .06);
  border: 1px solid rgba(155, 243, 234, .28);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--ink-900);
  background: var(--cyan-400);
  border-color: var(--cyan-400);
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-index__side-label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate-300);
}

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

.page-faq .filter-btn {
  font-family: inherit;
  font-size: 12.5px;
  letter-spacing: .04em;
  padding: 7px 14px;
  color: var(--slate-300);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.page-faq .filter-btn:hover,
.page-faq .filter-btn:focus-visible {
  color: var(--cyan-200);
  border-color: var(--line-strong);
}

.page-faq .filter-btn[aria-pressed="true"] {
  color: var(--ink-900);
  background: var(--cyan-400);
  border-color: var(--cyan-400);
}

.page-faq .faq-toc {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-faq .faq-toc a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0 10px 14px;
  margin-left: -1px;
  border-left: 1px solid transparent;
  font-size: 13.5px;
  color: var(--slate-300);
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, transform .2s ease;
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  color: var(--cyan-400);
  border-left-color: var(--cyan-400);
  transform: translateX(4px);
}

.page-faq .faq-toc .mono {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan-400);
}

.page-faq .faq-answers {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-fold {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(22, 32, 74, .88), rgba(11, 18, 48, .82));
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .faq-fold[open] {
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(22, 32, 74, 1), rgba(11, 18, 48, .92));
}

.page-faq .faq-fold > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--cream-050);
  transition: color .2s ease;
}

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

.page-faq .faq-fold > summary:hover,
.page-faq .faq-fold > summary:focus-visible {
  color: var(--cyan-400);
}

.page-faq .faq-fold > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.2;
  color: var(--cyan-400);
}

.page-faq .faq-fold[open] > summary::after {
  content: "–";
  color: var(--amber-400);
}

.page-faq .faq-fold__num {
  flex: none;
  padding-top: 4px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan-400);
}

.page-faq .faq-fold .fold-body {
  padding: 0 18px 20px 18px;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(230, 233, 244, .86);
}

.page-faq .faq-fold .fold-body p {
  margin: 0 0 8px;
}

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

/* ---------- 换设备登录 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
}

.page-faq .faq-split__text h2 {
  margin: 6px 0 14px;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.28;
  letter-spacing: .02em;
  font-weight: 900;
  color: var(--cream-050);
}

.page-faq .faq-split__text p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(230, 233, 244, .82);
}

.page-faq .faq-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-points li {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.85;
  color: rgba(230, 233, 244, .86);
}

.page-faq .faq-points li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-points__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan-400);
}

.page-faq .media-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

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

.page-faq .media-frame__tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 5px 11px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink-900);
  background: var(--cyan-400);
}

/* ---------- 六类栏目 ---------- */
.page-faq .faq-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-col-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px 18px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(14, 22, 56, .78);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: border-color .25s ease, background .25s ease, transform .25s ease;
}

.page-faq .faq-col-card:hover,
.page-faq .faq-col-card:focus-visible {
  border-color: var(--line-strong);
  background: rgba(22, 32, 74, .96);
  transform: translateY(-3px);
}

.page-faq .faq-col-card__num {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan-400);
}

.page-faq .faq-col-card h3 {
  margin: 0;
  font-size: 17px;
  letter-spacing: .03em;
  font-weight: 700;
  color: var(--cream-050);
  transition: color .25s ease;
}

.page-faq .faq-col-card:hover h3 {
  color: var(--cyan-400);
}

.page-faq .faq-col-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--slate-300);
}

.page-faq .faq-col-card__go {
  margin-top: auto;
  padding-top: 8px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--amber-400);
}

.page-faq .faq-col-card--here {
  border-color: rgba(255, 180, 84, .45);
  background: rgba(22, 32, 74, .95);
}

.page-faq .faq-col-card--here .faq-col-card__num {
  color: var(--amber-400);
}

/* ---------- 改版记录时间线 ---------- */
.page-faq .faq-timeline {
  position: relative;
  padding: clamp(22px, 4vw, 44px);
  color: var(--brown-900);
  background:
    linear-gradient(180deg, rgba(201, 191, 232, .18), transparent 40%),
    var(--cream-050);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .faq-timeline__head {
  max-width: 52em;
}

.page-faq .faq-timeline__head .eyebrow {
  color: rgba(42, 29, 22, .62);
  letter-spacing: .14em;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
}

.page-faq .faq-timeline__head h2 {
  margin: 8px 0 12px;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.3;
  letter-spacing: .02em;
  font-weight: 900;
  color: var(--brown-900);
}

.page-faq .faq-timeline__head p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(42, 29, 22, .78);
}

.page-faq .faq-timeline__track {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .faq-timeline__node {
  position: relative;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--faq-rule);
}

.page-faq .faq-timeline__node::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--brown-900);
}

.page-faq .faq-timeline__ver {
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(42, 29, 22, .68);
}

.page-faq .faq-timeline__node h3 {
  margin: 6px 0 8px;
  font-size: 16px;
  line-height: 1.45;
  font-weight: 700;
  color: var(--brown-900);
}

.page-faq .faq-timeline__node p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(42, 29, 22, .76);
}

.page-faq .faq-timeline__node--mark {
  border-left-color: var(--amber-400);
}

.page-faq .faq-timeline__node--mark::before {
  background: var(--amber-400);
  box-shadow: 0 0 0 4px rgba(255, 180, 84, .3);
}

.page-faq .faq-timeline__badge {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--brown-900);
  background: var(--amber-400);
}

/* ---------- 收藏 ---------- */
.page-faq .faq-save__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 48px);
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(201, 191, 232, .16), transparent 60%),
    linear-gradient(135deg, rgba(22, 32, 74, .94), rgba(11, 18, 48, .96));
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-faq .faq-save__intro .eyebrow {
  color: var(--cyan-200);
  letter-spacing: .14em;
}

.page-faq .faq-save__intro h2 {
  margin: 8px 0 14px;
  font-size: clamp(23px, 3.2vw, 32px);
  line-height: 1.3;
  letter-spacing: .02em;
  font-weight: 900;
  color: var(--cream-050);
}

.page-faq .faq-save__intro p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(230, 233, 244, .82);
}

.page-faq .faq-save__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-save__list li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(230, 233, 244, .88);
}

.page-faq .faq-save__list li::before {
  content: "→";
  flex: none;
  font-family: var(--font-mono);
  color: var(--amber-400);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-reach__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-reach__card {
  padding: clamp(20px, 3vw, 28px);
  color: var(--brown-900);
  background: var(--cream-050);
  border-left: 4px solid var(--amber-400);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-reach__key {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(42, 29, 22, .62);
}

.page-faq .faq-reach__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.4vw, 22px);
  letter-spacing: .01em;
  color: var(--brown-900);
  overflow-wrap: anywhere;
}

.page-faq .faq-reach__copy {
  margin: 14px 0 0;
}

.page-faq .faq-reach__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-rule);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(42, 29, 22, .74);
}

.page-faq .faq-reach__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-reach__hours {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate-300);
}

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

.page-faq .faq-reach__links .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (max-width: 919px) {
  .page-faq .faq-index__filter {
    position: sticky;
    top: calc(var(--ruler-h) + 6px);
    z-index: 6;
    padding: 10px 0;
    background: var(--ink-900);
    border-bottom: 1px solid var(--line);
  }
}

@media (min-width: 640px) {
  .page-faq .faq-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
  }
}

@media (min-width: 920px) {
  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 248px) minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(24px, 3vw, 44px);
  }

  .page-faq .faq-index__filter {
    grid-column: 1;
    grid-row: 1;
  }

  .page-faq .faq-toc {
    grid-column: 1;
    grid-row: 2;
    position: sticky;
    top: calc(var(--ruler-h) + 20px);
  }

  .page-faq .faq-answers {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .page-faq .faq-save__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, .95fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 840px) {
  .page-faq .faq-timeline__track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .faq-timeline__node {
    padding: 28px 18px 0 0;
    border-left: 0;
    border-top: 1px solid var(--faq-rule);
  }

  .page-faq .faq-timeline__node::before {
    left: 0;
    top: -5px;
  }

  .page-faq .faq-timeline__node--mark {
    border-left-color: transparent;
    border-top-color: var(--amber-400);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>