.page-faq {
  display: block;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .tut-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(26px, 4vw, 56px) clamp(44px, 6vw, 88px);
  overflow: hidden;
}

.page-faq .tut-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(244, 239, 230, .055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(244, 239, 230, .055) 1px, transparent 1px);
  background-size: clamp(40px, 6vw, 72px) clamp(40px, 6vw, 72px);
  pointer-events: none;
}

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

.page-faq .tut-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-faq .tut-hero .breadcrumb__item {
  color: var(--slate-2);
}

.page-faq .tut-hero .breadcrumb__link {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--copper);
}

.page-faq .tut-hero .breadcrumb__link:hover,
.page-faq .tut-hero .breadcrumb__link:focus-visible {
  color: var(--copper-2);
  border-bottom-color: var(--copper-2);
}

.page-faq .tut-stage {
  position: relative;
  border: 1px solid var(--line-inv);
  background: linear-gradient(180deg, rgba(28, 53, 73, .55), rgba(11, 22, 34, 0));
  padding: clamp(22px, 4.5vw, 56px);
}

.page-faq .tut-stage::before,
.page-faq .tut-stage::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--signal);
}

.page-faq .tut-stage::before {
  top: -2px;
  left: -2px;
  border-right-color: transparent;
  border-bottom-color: transparent;
}

.page-faq .tut-stage::after {
  right: -2px;
  bottom: -2px;
  border-top-color: transparent;
  border-left-color: transparent;
}

.page-faq .tut-stage .eyebrow {
  color: var(--copper-2);
}

.page-faq .tut-hero h1 {
  margin: clamp(12px, 2vw, 20px) 0 0;
  max-width: 17em;
  font-size: clamp(27px, 5.2vw, 60px);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .tut-hero__lead {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  max-width: 44em;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.95;
  color: var(--paper-3);
}

.page-faq .tut-hero__stats {
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(18px, 2.6vw, 30px);
  border-top: 1px solid var(--line-inv);
}

.page-faq .tut-hero__stats .data-cell__value {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 500;
  color: var(--copper-2);
  letter-spacing: .01em;
}

.page-faq .tut-hero__stats .data-cell__label {
  color: var(--slate-2);
}

.page-faq .tut-hero__media {
  margin: clamp(30px, 5vw, 56px) 0 0;
  border-color: var(--line-inv);
}

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

.page-faq .tut-hero__media .media-frame__cap {
  color: var(--slate-2);
}

/* ---------- 三条入口路径 ---------- */
.page-faq .tut-paths {
  background: var(--paper);
}

.page-faq .tut-paths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 28px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-faq .tut-paths__grid .panel {
  display: flex;
  flex-direction: column;
}

.page-faq .tut-paths__grid .panel__foot {
  margin-top: auto;
  padding-top: clamp(16px, 2vw, 22px);
}

.page-faq .tut-paths__grid .panel__title {
  margin-top: 12px;
}

.page-faq .tut-paths__grid .panel__body p {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-2);
}

/* ---------- 首次上手步骤 ---------- */
.page-faq .tut-steps {
  background: var(--ink);
  color: var(--paper);
}

.page-faq .tut-steps .section__title {
  color: var(--paper);
}

.page-faq .tut-steps .section__lede {
  color: var(--slate-2);
}

.page-faq .tut-steps__list {
  margin-top: clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--line-inv);
}

.page-faq .tut-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(16px, 3vw, 40px);
  padding: clamp(22px, 3.2vw, 36px) 0;
  border-bottom: 1px solid var(--line-inv);
}

.page-faq .tut-step__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 40px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: .05em;
  color: var(--signal);
}

.page-faq .tut-step__title {
  margin: 0 0 10px;
  font-size: clamp(16px, 1.9vw, 22px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .tut-step__text {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.95;
  color: var(--slate-2);
}

.page-faq .tut-steps__media {
  margin: clamp(34px, 5vw, 56px) 0 0;
  border-color: var(--line-inv);
}

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

.page-faq .tut-steps__media .media-frame__cap {
  color: var(--slate-2);
}

/* ---------- 小屏使用 ---------- */
.page-faq .tut-mobile {
  background: var(--paper-2);
}

.page-faq .tut-mobile__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
}

.page-faq .tut-notes {
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-faq .tut-note {
  position: relative;
  padding-left: 30px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-2);
}

.page-faq .tut-note::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 14px;
  height: 2px;
  background: var(--signal);
}

.page-faq .tut-mobile__media {
  margin: 0;
  border-color: var(--line-2);
}

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

.page-faq .tut-mobile__media .media-frame__cap {
  color: var(--ink-3);
  background: var(--paper);
}

/* ---------- 常见问题 ---------- */
.page-faq .tut-faq {
  background: var(--ink-2);
  color: var(--paper);
}

.page-faq .tut-faq .section__title {
  color: var(--paper);
}

.page-faq .tut-faq .section__lede {
  color: var(--slate-2);
}

.page-faq .tut-faq .ledger {
  margin-top: clamp(28px, 4vw, 46px);
  border-top: 1px solid var(--line-inv);
}

.page-faq .tut-faq .ledger__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 28px) 0;
  border-bottom: 1px solid var(--line-inv);
}

.page-faq .tut-faq .ledger__key {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 600;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .tut-faq .ledger__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.95;
  color: var(--slate-2);
}

/* ---------- 收束 ---------- */
.page-faq .tut-next {
  background: var(--paper-3);
}

.page-faq .tut-next .section__title {
  margin: 0;
}

.page-faq .tut-next__lead {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 48em;
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-2);
}

.page-faq .tut-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .tut-paths__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .tut-faq .ledger__row {
    grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
    gap: clamp(20px, 4vw, 56px);
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-faq .tut-mobile__grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }

  .page-faq .tut-mobile__media {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1060px) {
  .page-faq .tut-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .tut-step {
    gap: 56px;
  }
}

@media (max-width: 520px) {
  .page-faq .tut-step {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .page-faq .tut-step__num {
    font-size: 20px;
  }

  .page-faq .tut-next__actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}
<<<END>>>