.page-faq {
  --faq-index-w: 240px;
  --faq-hair: rgba(166, 245, 238, 0.14);
  --faq-dim: rgba(198, 203, 230, 0.75);
  color: var(--mist-200);
}

.page-faq .breadcrumb {
  margin: 24px 0 0;
  font-size: 0.8rem;
}

/* ---------- 首屏 ---------- */
.page-faq .tut-hero {
  position: relative;
  padding: 28px 0 48px;
  overflow: hidden;
}

.page-faq .tut-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -200px;
  width: 460px;
  height: 460px;
  background: linear-gradient(210deg, rgba(53, 224, 210, 0.17), rgba(42, 35, 96, 0) 68%);
  transform: rotate(24deg);
  pointer-events: none;
}

.page-faq .tut-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-faq .tut-hero__main h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 5.4vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--white-050);
  max-width: 13em;
}

.page-faq .tut-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--mist-200);
}

.page-faq .tut-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .tut-hero__facts {
  border: var(--edge);
  background: var(--ink-800);
  box-shadow: var(--shadow-1);
  padding: 20px;
}

.page-faq .tut-hero__facts-title {
  margin: 0 0 14px;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--gold-400);
}

.page-faq .tut-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-hair);
}

.page-faq .tut-facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px;
  background: var(--ink-800);
}

.page-faq .tut-facts__k {
  font-size: 0.88rem;
  color: var(--mist-200);
}

.page-faq .tut-facts__v {
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--cyan-200);
}

@media (min-width: 1024px) {
  .page-faq .tut-hero {
    padding: 40px 0 56px;
  }
  .page-faq .tut-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    align-items: end;
  }
}

/* ---------- 场景 tab 带 ---------- */
.page-faq .tut-tabs {
  border-top: var(--edge);
  border-bottom: var(--edge);
  background: var(--ink-900);
}

.page-faq .tut-tabs ul {
  list-style: none;
  margin: 0;
  padding: 0 12px;
  display: flex;
  align-items: stretch;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .tut-tabs a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 56px;
  padding: 0 14px;
  color: var(--mist-200);
  text-decoration: none;
  font-size: 0.92rem;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--fast) ease-out, border-color var(--fast) ease-out,
    background-color var(--fast) ease-out;
}

.page-faq .tut-tabs a .mono {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--gold-400);
}

.page-faq .tut-tabs a:hover {
  color: var(--white-050);
  background: rgba(59, 48, 128, 0.45);
  border-bottom-color: var(--cyan-400);
}

.page-faq .tut-tabs a:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -3px;
  color: var(--white-050);
}

@media (min-width: 768px) {
  .page-faq .tut-tabs ul {
    padding: 0 20px;
    justify-content: center;
  }
  .page-faq .tut-tabs a {
    min-height: 72px;
    padding: 0 20px;
  }
}

/* ---------- 主体骨架 ---------- */
.page-faq .tut-body {
  display: grid;
  gap: 32px;
  padding-top: 40px;
  padding-bottom: 80px;
}

@media (min-width: 1024px) {
  .page-faq .tut-body {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

/* ---------- 侧边编号索引 ---------- */
.page-faq .tut-index {
  border: var(--edge);
  background: var(--ink-900);
  padding: 18px 16px;
}

.page-faq .tut-index__title {
  margin: 0 0 14px;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--cyan-400);
}

.page-faq .tut-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .tut-index__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 12px;
  color: var(--mist-200);
  text-decoration: none;
  font-size: 0.9rem;
  white-space: nowrap;
  border: 1px solid var(--violet-700);
  background: var(--ink-800);
  transition: color var(--fast) ease-out, border-color var(--fast) ease-out,
    background-color var(--fast) ease-out;
}

.page-faq .tut-index__num {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--gold-400);
}

.page-faq .tut-index__hint {
  margin: 14px 0 0;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--faq-dim);
}

@media (min-width: 1024px) {
  .page-faq .tut-index {
    position: sticky;
    top: 104px;
    box-shadow: var(--shadow-1);
  }
  .page-faq .tut-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }
  .page-faq .tut-index__list a {
    align-items: flex-start;
    border: 0;
    border-left: 2px solid var(--violet-700);
    background: transparent;
    white-space: normal;
    padding: 12px 12px 12px 14px;
  }
  .page-faq .tut-index__list a:hover {
    border-left-color: var(--cyan-400);
    background: rgba(59, 48, 128, 0.35);
    color: var(--white-050);
  }
  .page-faq .tut-index__list a:focus-visible {
    outline: 2px solid var(--cyan-400);
    outline-offset: 2px;
  }
}

/* ---------- 场景分组 ---------- */
.page-faq .tut-group {
  scroll-margin-top: 96px;
  padding-bottom: 48px;
}

.page-faq .tut-group + .tut-group {
  border-top: 1px solid var(--faq-hair);
  padding-top: 48px;
}

.page-faq .tut-group:last-child {
  padding-bottom: 8px;
}

.page-faq .tut-group__head {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-faq .tut-group__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--cyan-400);
}

.page-faq .tut-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 2.8vw, 1.9rem);
  line-height: 1.2;
  color: var(--white-050);
}

.page-faq .tut-group__tag {
  margin: 8px 0 0;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--gold-400);
}

.page-faq .tut-group > p {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--mist-200);
}

.page-faq .tut-group__head + p {
  margin-top: 18px;
}

@media (max-width: 519px) {
  .page-faq .tut-group__head {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }
  .page-faq .tut-group__num {
    font-size: 1.25rem;
  }
}

/* ---------- 步骤列表 ---------- */
.page-faq .tut-steps {
  position: relative;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-faq .tut-steps::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan-400), var(--violet-600) 55%, var(--faq-hair));
}

.page-faq .tut-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 18px;
  padding: 10px 0;
}

.page-faq .tut-step__num {
  position: relative;
  z-index: 1;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--violet-700);
  background: var(--ink-900);
  color: var(--gold-400);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  transition: background-color var(--fast) ease-out, border-color var(--fast) ease-out,
    color var(--fast) ease-out;
}

.page-faq .tut-step:hover .tut-step__num {
  background: var(--ink-800);
  border-color: var(--cyan-400);
  color: var(--cyan-200);
}

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

.page-faq .tut-step__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white-050);
}

.page-faq .tut-step__body p {
  margin: 6px 0 0;
  max-width: 38em;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--mist-200);
}

.page-faq code,
.page-faq kbd {
  font-family: var(--font-mono);
  font-size: 0.85em;
  letter-spacing: 0.06em;
  color: var(--cyan-200);
  background: var(--ink-900);
  border: 1px solid var(--violet-700);
  padding: 1px 6px;
}

/* ---------- 配图 ---------- */
.page-faq .tut-figure {
  margin: 28px 0 0;
  border: var(--edge);
  background: var(--ink-900);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.page-faq .tut-figure__frame {
  position: relative;
  line-height: 0;
}

.page-faq .tut-figure__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(215deg, rgba(53, 224, 210, 0.13), rgba(7, 8, 24, 0) 58%);
  pointer-events: none;
}

.page-faq .tut-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-800);
}

.page-faq .tut-figure figcaption {
  padding: 12px 16px;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--faq-dim);
  border-top: 1px solid var(--faq-hair);
  background: var(--ink-800);
}

/* ---------- 图文分栏 ---------- */
.page-faq .tut-split {
  display: grid;
  gap: 28px;
  margin-top: 22px;
}

.page-faq .tut-split__main > p {
  margin: 0;
  max-width: 40em;
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--mist-200);
}

.page-faq .tut-split__main .tut-steps {
  margin-top: 22px;
}

@media (min-width: 1024px) {
  .page-faq .tut-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    align-items: start;
    gap: 32px;
  }
  .page-faq .tut-split__media {
    margin-top: 0;
  }
}

/* ---------- 折叠面板 ---------- */
.page-faq .panel {
  margin-top: 16px;
  border: var(--edge);
  background: var(--ink-800);
  transition: border-color var(--base) ease-out;
}

.page-faq .panel[open] {
  border-left-color: var(--cyan-400);
}

.page-faq .panel__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white-050);
}

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

.page-faq .panel__summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--cyan-400);
}

.page-faq .panel[open] .panel__summary::after {
  content: "–";
}

.page-faq .panel__summary:hover {
  background: rgba(59, 48, 128, 0.35);
}

.page-faq .panel__summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -2px;
}

.page-faq .panel__body {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--faq-hair);
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--mist-200);
}

.page-faq .panel__body p {
  margin: 0;
  max-width: 40em;
}

.page-faq .panel__body ol,
.page-faq .panel__body ul {
  margin: 0;
  padding-left: 20px;
}

.page-faq .panel__body li {
  margin-bottom: 8px;
}

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

.page-faq .panel__body li::marker {
  color: var(--gold-400);
}

/* ---------- 行内指引与清单 ---------- */
.page-faq .tut-linkrow {
  margin: 22px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--faq-dim);
}

.page-faq .tut-linkrow a {
  color: var(--cyan-200);
  text-decoration: none;
  border-bottom: 1px solid var(--violet-700);
}

.page-faq .tut-linkrow a:hover {
  border-bottom-color: var(--cyan-400);
}

.page-faq .tut-linkrow a:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

.page-faq .tut-checklist {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-hair);
  border: var(--edge);
}

.page-faq .tut-checklist li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 16px;
  background: var(--ink-800);
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--mist-200);
}

.page-faq .tut-checklist .mono {
  flex: 0 0 auto;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--gold-400);
}

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

@media (max-width: 767px) {
  .page-faq .tut-hero__actions .btn,
  .page-faq .tut-cta .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}