.page-faq {
  --faq-shadow: 7px 7px 0 rgba(2, 6, 23, .6);
  --faq-shadow-cyan: 7px 7px 0 rgba(0, 229, 255, .14);
  --faq-shadow-gold: 7px 7px 0 rgba(255, 180, 84, .16);
  background: var(--c-indigo);
  color: var(--c-paper);
  font-family: var(--font-body);
  line-height: 1.7;
}

.page-faq .tut-crumb {
  padding-block: clamp(14px, 2.6vw, 24px) 0;
}

/* ============ 首屏 ============ */
.page-faq .tut-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 44px) clamp(34px, 5.5vw, 68px);
  background:
    radial-gradient(115% 92% at 90% 4%, rgba(0, 229, 255, .18), transparent 58%),
    radial-gradient(78% 70% at 3% 98%, rgba(168, 85, 247, .16), transparent 62%),
    var(--c-indigo);
  border-bottom: 1px solid var(--line);
}

.page-faq .tut-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 36px);
}

.page-faq .tut-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8vw, 82px);
  line-height: .98;
  letter-spacing: -.01em;
  margin: 12px 0 0;
  text-shadow: 4px 4px 0 rgba(0, 229, 255, .14);
}

.page-faq .tut-hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.5vw, 17px);
  color: var(--c-mist);
}

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

.page-faq .tut-hero__note {
  align-self: end;
  border: 1px solid var(--line-cyan);
  background: rgba(30, 41, 59, .55);
  padding: 18px 20px 20px;
  box-shadow: var(--faq-shadow-cyan);
}

.page-faq .tut-hero__note-text {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--c-mist);
}

/* ============ 章节目录 ============ */
.page-faq .tut-toc {
  background: var(--c-ink);
  border-bottom: 1px solid var(--line);
}

.page-faq .tut-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.page-faq .tut-toc__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 14px;
  background: var(--c-ink);
  text-decoration: none;
  color: var(--c-paper);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  line-height: 1.35;
  transition: background .25s var(--ease), color .25s var(--ease);
}

.page-faq .tut-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-cyan);
  flex: none;
}

.page-faq .tut-toc__item:hover,
.page-faq .tut-toc__item:focus-visible {
  background: var(--c-slate);
  color: var(--c-gold);
  outline: none;
}

/* ============ 章节骨架 ============ */
.page-faq .tut-block {
  padding-block: clamp(44px, 6.5vw, 84px);
  background: var(--c-indigo);
  border-bottom: 1px solid var(--line);
}

.page-faq .tut-block--ink {
  background: var(--c-ink);
}

.page-faq .tut-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .tut-head__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 4.2vw, 46px);
  line-height: 1;
  color: rgba(0, 229, 255, .2);
  -webkit-text-stroke: 1px rgba(0, 229, 255, .5);
}

.page-faq .tut-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.1;
  margin: 0;
  letter-spacing: -.005em;
}

.page-faq .tut-head__lead {
  margin: 12px 0 0;
  max-width: 62ch;
  color: var(--c-mist);
  font-size: 15px;
}

/* ============ 步骤编号列表 ============ */
.page-faq .tut-steps {
  list-style: none;
  margin: 0 0 clamp(26px, 4vw, 40px);
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .tut-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 18px;
  background: var(--c-indigo);
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .tut-step:hover {
  background: var(--c-slate);
  box-shadow: inset 3px 0 0 var(--c-cyan);
}

.page-faq .tut-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-cyan);
}

.page-faq .tut-step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.35;
  margin: 0;
}

.page-faq .tut-step__text {
  margin: 8px 0 0;
  font-size: 15px;
  color: var(--c-mist);
}

/* ============ 图片框 ============ */
.page-faq .tut-figure {
  margin: 0;
  border: 1px solid var(--line-cyan);
  background: var(--c-ink);
  box-shadow: var(--faq-shadow);
}

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

.page-faq .tut-figure__cap {
  border-top: 1px solid var(--line-cyan);
  padding: 11px 15px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ============ 02 要点卡片 ============ */
.page-faq .tut-notes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .tut-note {
  border: 1px solid var(--line);
  border-left: 3px solid var(--c-violet);
  background: var(--c-slate);
  padding: 20px 18px 22px;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-faq .tut-note:hover {
  border-left-color: var(--c-cyan);
  transform: translateX(3px);
}

.page-faq .tut-note__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-cyan-soft);
  border: 1px solid var(--line-cyan);
  padding: 3px 9px;
}

.page-faq .tut-note__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.35;
  margin: 14px 0 0;
}

.page-faq .tut-note__text {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--c-mist);
}

/* ============ 03 双面板 ============ */
.page-faq .tut-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-faq .tut-panel {
  border: 1px solid var(--line);
  background: var(--c-slate);
  padding: clamp(20px, 3vw, 30px);
}

.page-faq .tut-panel--gold {
  border-color: var(--line-gold);
  box-shadow: var(--faq-shadow-gold);
}

.page-faq .tut-panel--cyan {
  border-color: var(--line-cyan);
  box-shadow: var(--faq-shadow-cyan);
}

.page-faq .tut-panel__tag {
  display: inline-block;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  padding: 4px 10px;
  border: 1px solid currentColor;
}

.page-faq .tut-panel--gold .tut-panel__tag {
  color: var(--c-gold);
}

.page-faq .tut-panel--cyan .tut-panel__tag {
  color: var(--c-cyan);
}

.page-faq .tut-panel__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.25;
  margin: 0 0 16px;
}

.page-faq .tut-mini {
  list-style: none;
  counter-reset: mini;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-faq .tut-mini li {
  counter-increment: mini;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .tut-mini li::before {
  content: counter(mini, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-cyan);
  padding-top: 4px;
}

/* ============ 04 换设备 ============ */
.page-faq .tut-sync {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-faq .tut-bullets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .tut-bullets li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-faq .tut-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 9px;
  background: var(--c-gold);
}

.page-faq .tut-bullets strong {
  color: var(--c-paper);
  font-weight: 600;
}

/* ============ 05 差异表 ============ */
.page-faq .tut-table-wrap {
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .tut-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .tut-table th,
.page-faq .tut-table td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  vertical-align: top;
}

.page-faq .tut-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-cyan);
  background: var(--c-ink);
  white-space: nowrap;
}

.page-faq .tut-table tbody th {
  font-weight: 600;
  color: var(--c-paper);
  background: rgba(30, 41, 59, .55);
  white-space: nowrap;
}

.page-faq .tut-table td {
  color: var(--c-mist);
}

.page-faq .tut-table tbody tr:last-child th,
.page-faq .tut-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .tut-table tbody tr:hover td {
  background: rgba(0, 229, 255, .06);
  color: var(--c-paper);
}

.page-faq .tut-diff__note {
  margin: 18px 0 0;
  padding-left: 18px;
  border-left: 3px solid var(--c-violet);
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ============ 06 折叠问答 ============ */
.page-faq .tut-faq {
  border-top: 1px solid var(--line);
}

.page-faq .tut-faq__item {
  border: 1px solid var(--line);
  border-top: 0;
  background: var(--c-slate);
  transition: background .25s var(--ease);
}

.page-faq .tut-faq__item[open] {
  background: rgba(30, 41, 59, .9);
  box-shadow: inset 3px 0 0 var(--c-cyan);
}

.page-faq .tut-faq__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--c-paper);
  transition: color .25s var(--ease);
}

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

.page-faq .tut-faq__q::marker {
  content: "";
}

.page-faq .tut-faq__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-faq .tut-faq__item[open] .tut-faq__q::after {
  content: "−";
  color: var(--c-gold);
}

.page-faq .tut-faq__q:hover,
.page-faq .tut-faq__q:focus-visible {
  color: var(--c-gold);
  outline: none;
}

.page-faq .tut-faq__a {
  padding: 0 18px 20px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-faq .tut-faq__a p {
  margin: 0;
}

/* ============ 收尾 ============ */
.page-faq .tut-next {
  background: var(--c-ink);
  padding-block: clamp(40px, 6vw, 76px);
  border-top: 1px solid var(--line);
}

.page-faq .tut-next__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-faq .tut-next__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.15;
  margin: 0;
}

.page-faq .tut-next__text {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15px;
  color: var(--c-mist);
}

.page-faq .tut-next__links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .tut-next__link {
  display: block;
  background: var(--c-indigo);
  padding: 18px 18px 20px;
  border-left: 3px solid transparent;
  text-decoration: none;
  color: var(--c-paper);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.3;
  transition: background .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}

.page-faq .tut-next__link span {
  display: block;
  margin-top: 7px;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-mist);
}

.page-faq .tut-next__link:hover,
.page-faq .tut-next__link:focus-visible {
  background: var(--c-slate);
  border-left-color: var(--c-gold);
  transform: translateX(3px);
  outline: none;
}

/* ============ 小屏差异表转卡片 ============ */
@media (max-width: 639px) {
  .page-faq .tut-table thead {
    display: none;
  }

  .page-faq .tut-table,
  .page-faq .tut-table tbody,
  .page-faq .tut-table tr,
  .page-faq .tut-table th,
  .page-faq .tut-table td {
    display: block;
    width: 100%;
  }

  .page-faq .tut-table tr {
    border-bottom: 1px solid var(--line);
  }

  .page-faq .tut-table tbody tr:last-child {
    border-bottom: 0;
  }

  .page-faq .tut-table th,
  .page-faq .tut-table td {
    border-right: 0;
    padding: 11px 16px;
  }

  .page-faq .tut-table tbody th {
    padding-bottom: 6px;
    font-size: 15px;
  }

  .page-faq .tut-table td {
    padding-top: 6px;
    padding-bottom: 10px;
  }

  .page-faq .tut-table td::before {
    content: attr(data-label);
    display: inline-block;
    margin-right: 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--c-violet);
  }
}

/* ============ 中屏 ============ */
@media (min-width: 640px) {
  .page-faq .tut-toc__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .tut-step {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 18px;
    padding: 24px 22px;
  }

  .page-faq .tut-step__num {
    padding-top: 5px;
  }

  .page-faq .tut-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

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

/* ============ 桌面 ============ */
@media (min-width: 900px) {
  .page-faq .tut-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .tut-toc__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-faq .tut-head {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 0 30px;
    align-items: start;
  }

  .page-faq .tut-head__num {
    padding-top: 6px;
  }

  .page-faq .tut-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
  }

  .page-faq .tut-sync {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(36px, 5vw, 68px);
  }

  .page-faq .tut-sync .tut-head {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: 0 22px;
  }

  .page-faq .tut-next__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(36px, 5vw, 66px);
  }
}

@media (min-width: 1180px) {
  .page-faq .tut-notes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>