.page-home {
  --home-card: rgba(14, 30, 46, .66);
  --home-card-soft: rgba(19, 41, 61, .48);
  position: relative;
  overflow: hidden;
  padding-bottom: 72px;
  font-family: var(--font-cn);
  color: var(--c-cream);
}

.page-home::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(100deg, rgba(53, 224, 214, .045) 0 1px, transparent 1px 104px);
  z-index: 0;
}

.page-home::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -12%;
  width: 62vw;
  height: 62vw;
  pointer-events: none;
  background: radial-gradient(circle, rgba(53, 224, 214, .09), transparent 62%);
  z-index: 0;
}

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

.page-home .home-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 22px 0 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-mute);
}

.page-home .home-context .mono {
  color: var(--c-cyan);
}

.page-home .ctx-sep {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--c-line);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  padding: 28px 0 8px;
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-home .hero__aside {
  display: none;
}

.page-home .hero__brand-vertical {
  writing-mode: vertical-rl;
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .34em;
  color: var(--c-cream);
}

.page-home .hero__ver {
  margin: 26px 0 0;
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-home .hero__body .eyebrow {
  margin: 0 0 18px;
}

.page-home .hero__body h1 {
  margin: 0;
  font-size: clamp(32px, 7.6vw, 62px);
  line-height: 1.06;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--c-cream);
}

.page-home .hero__body .lead {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-mute);
}

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

.page-home .hero__stamp {
  margin: 22px 0 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-cyan);
}

.page-home .hero__media {
  position: relative;
}

.page-home .hero__media::before {
  content: "";
  position: absolute;
  left: -8%;
  top: 8%;
  width: 116%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-cyan), transparent);
  transform: rotate(9deg);
  transform-origin: left center;
  opacity: .5;
  pointer-events: none;
}

.page-home .hero__index {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .hero__index li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  background: var(--home-card);
}

.page-home .hero__index li:nth-child(2) {
  margin-left: 22px;
}

.page-home .hero__index li:nth-child(3) {
  margin-left: 44px;
}

.page-home .hero__index .mono {
  font-size: 12px;
  color: var(--c-cyan);
}

.page-home .hero__index a {
  color: var(--c-cream);
  font-size: 15px;
  text-decoration: none;
}

.page-home .hero__index a:hover,
.page-home .hero__index a:focus-visible {
  color: var(--c-cyan-soft);
}

/* ---------- 通用图片件 ---------- */
.page-home .home-figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  background: var(--c-navy);
}

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

.page-home .home-figure--tall img {
  aspect-ratio: 4 / 5;
}

.page-home .home-figure--square img {
  aspect-ratio: 1 / 1;
}

.page-home .home-figure--wide img {
  aspect-ratio: 3 / 2;
}

.page-home .figure-cap {
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mute);
  border-top: 1px solid var(--c-line);
}

/* ---------- 三条动线 ---------- */
.page-home .lines {
  position: relative;
  overflow: hidden;
  margin-top: 64px;
  padding: 56px 0 60px;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-home .lines__bg {
  position: absolute;
  inset: 0;
  opacity: .22;
  pointer-events: none;
}

.page-home .lines__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .lines__inner {
  position: relative;
  z-index: 1;
}

.page-home .lines__switcher {
  position: relative;
  margin-top: 34px;
}

.page-home .lines__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-home .lines__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-home .lines__tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  background: var(--home-card);
  color: var(--c-mute);
  font-size: 15px;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .lines__tab .mono {
  font-size: 12px;
  color: var(--c-mute);
}

.page-home .lines__tab:hover {
  border-color: var(--c-cyan-soft);
  color: var(--c-cream);
}

.page-home .lines__radio:nth-of-type(1):checked ~ .lines__tabs .lines__tab:nth-of-type(1),
.page-home .lines__radio:nth-of-type(2):checked ~ .lines__tabs .lines__tab:nth-of-type(2),
.page-home .lines__radio:nth-of-type(3):checked ~ .lines__tabs .lines__tab:nth-of-type(3) {
  color: var(--c-cream);
  border-color: var(--c-cyan);
  background: rgba(53, 224, 214, .12);
}

.page-home .lines__radio:nth-of-type(1):checked ~ .lines__tabs .lines__tab:nth-of-type(1) .mono,
.page-home .lines__radio:nth-of-type(2):checked ~ .lines__tabs .lines__tab:nth-of-type(2) .mono,
.page-home .lines__radio:nth-of-type(3):checked ~ .lines__tabs .lines__tab:nth-of-type(3) .mono {
  color: var(--c-cyan);
}

.page-home .lines__radio:focus-visible ~ .lines__tabs .lines__tab {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

.page-home .lines__panels {
  margin-top: 28px;
  padding-top: 30px;
  border-top: 1px solid var(--c-line);
}

.page-home .lines__panel {
  display: none;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-home .lines__radio:nth-of-type(1):checked ~ .lines__panels .lines__panel:nth-of-type(1),
.page-home .lines__radio:nth-of-type(2):checked ~ .lines__panels .lines__panel:nth-of-type(2),
.page-home .lines__radio:nth-of-type(3):checked ~ .lines__panels .lines__panel:nth-of-type(3) {
  display: grid;
}

.page-home .lines__panel-title {
  margin: 0 0 22px;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.2;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--c-cream);
}

.page-home .lines__facts {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-home .lines__fact {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--c-line);
}

.page-home .lines__fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

.page-home .lines__fact dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mute);
}

.page-home .lines__side {
  align-self: start;
  padding: 24px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  background: rgba(11, 46, 44, .78);
}

.page-home .lines__side-idx {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-home .lines__side p {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-mute);
}

/* ---------- 五步上手 ---------- */
.page-home .steps {
  padding: 72px 0 0;
}

.page-home .steps__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-home .steps__intro .section__lead {
  margin-top: 18px;
}

.page-home .steps__note {
  margin: 20px 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--c-amber);
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mute);
}

.page-home .steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .steps__item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 20px 0;
  border-top: 1px solid var(--c-line);
}

.page-home .steps__item:last-child {
  border-bottom: 1px solid var(--c-line);
}

.page-home .steps__num {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

.page-home .steps__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-cream);
}

.page-home .steps__text .mono {
  font-size: 13px;
  color: var(--c-cyan);
}

/* ---------- 能力速览 ---------- */
.page-home .scale {
  padding: 72px 0 0;
}

.page-home .scale__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-home .scale__data .section__lead {
  margin-top: 16px;
  max-width: 32em;
}

.page-home .scale__list {
  margin: 30px 0 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-home .scale__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-home .scale__item dt {
  font-size: 14px;
  color: var(--c-mute);
}

.page-home .scale__item dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-home .scale__num {
  font-size: 28px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-home .scale__unit {
  font-size: 13px;
  color: var(--c-mute);
}

.page-home .scale__caption {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-mute);
}

/* ---------- 版本时间线 ---------- */
.page-home .timeline {
  padding: 72px 0 0;
}

.page-home .timeline__track {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 34px;
}

.page-home .timeline__node {
  padding: 24px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  background: var(--home-card);
}

.page-home .timeline__node--now {
  border-color: var(--c-cyan);
  background: rgba(53, 224, 214, .08);
}

.page-home .timeline__ver {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

.page-home .timeline__node h3 {
  margin: 0 0 10px;
  font-size: 18px;
  letter-spacing: -.01em;
  color: var(--c-cream);
}

.page-home .timeline__node p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-mute);
}

.page-home .timeline__foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 36px;
}

.page-home .timeline__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mute);
}

.page-home .timeline__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 现在开始 ---------- */
.page-home .start {
  padding: 72px 0 0;
}

.page-home .start__panel {
  padding: 32px 24px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(11, 46, 44, .92), rgba(7, 16, 25, .94));
}

.page-home .start__out {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-home .start__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--c-line);
  text-decoration: none;
  color: var(--c-cream);
  transition: color var(--dur) var(--ease);
}

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

.page-home .start__link-idx {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

.page-home .start__link-main {
  display: grid;
  gap: 6px;
  font-size: 18px;
  font-weight: 700;
}

.page-home .start__link-main em {
  font-style: normal;
  font-size: 13px;
  font-weight: 400;
  color: var(--c-mute);
}

.page-home .start__arrow {
  font-size: 18px;
  color: var(--c-cyan);
}

.page-home .start__link:hover,
.page-home .start__link:focus-visible {
  color: var(--c-cyan-soft);
}

.page-home .start__contact {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mute);
}

.page-home .start__contact a {
  color: var(--c-cyan);
  text-decoration: none;
}

.page-home .start__contact a:hover,
.page-home .start__contact a:focus-visible {
  color: var(--c-cyan-soft);
  text-decoration: underline;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-home .scale__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 44px;
  }

  .page-home .timeline__track {
    flex-direction: row;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 10px;
    gap: 16px;
  }

  .page-home .timeline__node {
    flex: 0 0 300px;
    scroll-snap-align: start;
  }

  .page-home .start__panel {
    padding: 40px 36px;
  }
}

@media (min-width: 900px) {
  .page-home {
    padding-bottom: 96px;
  }

  .page-home .hero {
    padding: 34px 0 14px;
  }

  .page-home .hero__grid {
    grid-template-columns: 82px minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 44px;
    align-items: start;
  }

  .page-home .hero__aside {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 6px;
  }

  .page-home .hero__media::before {
    opacity: .65;
  }

  .page-home .lines {
    margin-top: 84px;
    padding: 68px 0 72px;
  }

  .page-home .lines__panel {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr);
    gap: 44px;
  }

  .page-home .steps {
    padding-top: 92px;
  }

  .page-home .steps__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 56px;
    align-items: start;
  }

  .page-home .scale {
    padding-top: 92px;
  }

  .page-home .scale__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .8fr);
    gap: 56px;
    align-items: start;
  }

  .page-home .timeline {
    padding-top: 92px;
  }

  .page-home .timeline__foot {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 44px;
    align-items: center;
  }

  .page-home .start {
    padding-top: 92px;
  }
}

@media (min-width: 1180px) {
  .page-home .hero__grid {
    grid-template-columns: 92px minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 56px;
  }

  .page-home .hero__body h1 {
    max-width: 15em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .lines__tab,
  .page-home .start__link {
    transition: none;
  }

  .page-home .timeline__track {
    scroll-behavior: auto;
  }
}