.page-home {
  --home-max: 1160px;
  display: block;
}

.page-home .home-wrap {
  width: 100%;
  max-width: var(--home-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-home .home-section {
  padding: 52px 0;
  border-top: 1px solid var(--line);
}

.page-home .sec-head {
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}

.page-home .sec-no {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--signal);
  margin: 0;
}

.page-home .sec-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.22;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--paper);
}

.page-home .sec-lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 58ch;
  margin: 0;
}

/* 封面 */
.page-home .cover {
  padding: 30px 0 46px;
}

.page-home .cover-path {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
  margin: 0 0 22px;
}

.page-home .cover-path__sep {
  color: var(--cyan);
}

.page-home .cover-grid {
  display: grid;
  grid-template-areas: "title" "lead" "figure" "aside";
  gap: 24px;
}

.page-home .cover-title {
  grid-area: title;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 12vw, 108px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--paper);
}

.page-home .cover-title span {
  display: block;
  color: var(--signal);
}

.page-home .cover-lead {
  grid-area: lead;
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .cover-figure {
  grid-area: figure;
  margin: 0;
}

.page-home .cover-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-home .cover-aside {
  grid-area: aside;
  border-left: 2px solid var(--signal);
  padding-left: 18px;
}

.page-home .cover-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .cover-facts li {
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-home .cover-facts .mono {
  color: var(--paper);
  font-size: 19px;
  letter-spacing: 0.02em;
  margin-right: 4px;
}

.page-home .cover-code {
  margin: 26px 0 0;
  font-size: 30px;
  letter-spacing: 0.08em;
  color: var(--stone);
  opacity: 0.5;
}

/* 目录长卷 */
.page-home .roll-figure {
  margin: 0 0 22px;
}

.page-home .roll-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-home .roll-track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  border-bottom: 1px solid var(--line);
}

.page-home .roll-cell {
  flex: 0 0 auto;
  width: 164px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px 20px;
  border-right: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: background 180ms var(--ease);
}

.page-home .roll-cell:hover,
.page-home .roll-cell:focus-visible {
  background: var(--ink-800);
  outline: none;
}

.page-home .roll-cell:focus-visible {
  box-shadow: inset 0 0 0 2px var(--cyan);
}

.page-home .roll-no {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-home .roll-cell:hover .roll-no {
  color: var(--signal);
}

.page-home .roll-name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-home .roll-count {
  font-size: 12px;
  color: var(--mist);
}

.page-home .roll-tick {
  display: block;
  height: 2px;
  width: 26px;
  margin-top: 4px;
  background: var(--cyan);
  transition: width 200ms var(--ease);
}

.page-home .roll-cell:hover .roll-tick,
.page-home .roll-cell:focus-visible .roll-tick {
  width: 68px;
}

/* 六步路径 */
.page-home .steps-grid {
  display: grid;
  gap: 34px;
}

.page-home .step-track {
  position: relative;
  display: grid;
  gap: 10px;
}

.page-home .step-track::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 20px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(to bottom, var(--signal), var(--cyan) 55%, transparent);
}

.page-home .step {
  position: relative;
  border-bottom: 1px solid var(--line);
  padding: 0 0 8px;
}

.page-home .step > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 6px 0;
  cursor: pointer;
}

.page-home .step > summary::-webkit-details-marker {
  display: none;
}

.page-home .step > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-home .step-no {
  flex: 0 0 auto;
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--ink-900);
  color: var(--paper);
  font-size: 13px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .step[open] .step-no {
  border-color: var(--signal);
  color: var(--signal);
}

.page-home .step-name {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--paper);
}

.page-home .step-mark {
  margin-left: auto;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--stone);
  border-bottom: 1.5px solid var(--stone);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 220ms var(--ease), border-color 220ms var(--ease);
}

.page-home .step[open] .step-mark {
  border-color: var(--cyan);
  transform: rotate(-135deg) translateY(-2px);
}

.page-home .step-body {
  margin: 8px 0 6px 48px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .steps-aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .steps-figure {
  margin: 0;
}

.page-home .steps-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-home .steps-note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper);
}

.page-home .steps-aside .btn {
  width: 100%;
  justify-content: center;
}

/* 服务与工具 */
.page-home .kit-grid {
  display: grid;
  gap: 28px;
}

.page-home .kit-main {
  display: grid;
  gap: 18px;
}

.page-home .kit-item {
  background: var(--ink-800);
  border-left: 3px solid var(--paper-shadow);
  padding: 22px 20px;
}

.page-home .kit-item h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--paper);
}

.page-home .kit-item p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .kit-item p:last-child {
  margin-bottom: 0;
}

.page-home .kit-cats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-home .kit-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  background: var(--ink-700);
  border-top: 2px solid var(--signal);
}

.page-home .kit-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .kit-card__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .kit-card .btn {
  width: 100%;
  justify-content: center;
}

/* 近期动态 */
.page-home .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .news-list li {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-home .news-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-home .news-when {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-home .news-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}

.page-home .news-text a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 47, 0.45);
  transition: border-color 160ms var(--ease);
}

.page-home .news-text a:hover {
  border-bottom-color: var(--signal);
}

/* 数据条 */
.page-home .proof {
  padding: 40px 0;
  background: var(--ink-800);
  border-top: 1px solid var(--line-strong);
}

.page-home .proof-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px 16px;
}

.page-home .proof-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-home .proof-num em {
  font-style: normal;
  font-size: 0.5em;
  margin-left: 3px;
  color: var(--mist);
}

.page-home .proof-key {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

/* 尾行动 */
.page-home .next-line {
  padding: 34px 0 60px;
  border-top: 1px solid var(--line);
}

.page-home .next-line__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
  justify-content: space-between;
}

.page-home .next-line p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}

@media (min-width: 768px) {
  .page-home .home-section {
    padding: 84px 0;
  }

  .page-home .sec-head {
    grid-template-columns: 64px minmax(0, 1fr);
    column-gap: 24px;
    align-items: baseline;
  }

  .page-home .sec-no {
    grid-row: 1 / span 2;
  }

  .page-home .sec-title,
  .page-home .sec-lead {
    grid-column: 2;
  }

  .page-home .step:nth-child(even) {
    margin-left: 44px;
  }

  .page-home .roll-cell {
    width: 190px;
  }

  .page-home .news-list li {
    grid-template-columns: 92px minmax(0, 1fr);
    column-gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-home .cover {
    padding: 44px 0 64px;
  }

  .page-home .cover-grid {
    grid-template-columns: minmax(0, 1fr) 288px;
    grid-template-areas:
      "title aside"
      "lead aside"
      "figure aside";
    column-gap: 56px;
    row-gap: 22px;
    align-items: start;
  }

  .page-home .proof-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-home .proof-list li {
    border-left: 1px solid var(--line);
    padding-left: 22px;
  }

  .page-home .proof-list li:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

@media (min-width: 960px) {
  .page-home .steps-grid,
  .page-home .kit-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    column-gap: 48px;
    align-items: start;
  }

  .page-home .steps-aside,
  .page-home .kit-side {
    position: sticky;
    top: 92px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .roll-cell,
  .page-home .roll-tick,
  .page-home .step-no,
  .page-home .step-mark,
  .page-home .news-text a {
    transition: none;
  }
}