.page-home {
  --home-gap: clamp(1rem, 2.2vw, 1.6rem);
  --home-pad: clamp(1.1rem, 3vw, 1.8rem);
  background:
    radial-gradient(90% 70% at 88% -10%, rgba(45, 226, 197, .12), transparent 62%),
    radial-gradient(70% 50% at 0% 30%, rgba(31, 92, 74, .32), transparent 70%),
    var(--ink-950);
  color: var(--paper);
  padding-top: clamp(1.2rem, 3vw, 2.2rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
  overflow-x: clip;
}

.page-home .section {
  padding-block: clamp(2.5rem, 6vw, 4.5rem) 0;
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
  align-items: start;
}

/* 左侧品牌轨道 */
.page-home .rail {
  position: relative;
  overflow: hidden;
  padding: var(--home-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background: linear-gradient(170deg, rgba(18, 61, 50, .96), rgba(11, 42, 35, .98));
}

.page-home .rail__art {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .22;
  pointer-events: none;
}

.page-home .rail > *:not(.rail__art) {
  position: relative;
  z-index: 1;
}

.page-home .rail__title {
  margin: .55rem 0 .8rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 6.2vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-home .rail__lede {
  font-size: clamp(.94rem, 2.6vw, 1.02rem);
  line-height: 1.75;
  color: var(--mute);
  margin: 0 0 1rem;
}

.page-home .notice {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem .5rem;
  margin: 0 0 1.2rem;
  padding: .6rem .8rem;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--paper);
  background: rgba(255, 90, 54, .09);
  border-left: 3px solid var(--ember);
  border-radius: var(--radius-small);
}

.page-home .notice__tag {
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--ember);
}

.page-home .notice__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color .3s var(--ease), color .3s var(--ease);
}

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

/* 积分榜切换卡 */
.page-home .board {
  position: relative;
  padding: var(--home-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background: linear-gradient(160deg, rgba(6, 26, 22, .92), rgba(18, 61, 50, .78));
}

.page-home .board__title {
  margin: .5rem 0 .4rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 3.6vw, 1.4rem);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--cyan-soft);
}

.page-home .board__desc {
  margin: 0 0 .9rem;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--mute);
}

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

.page-home .board__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .9rem;
  border-radius: 4px;
}

.page-home .board__radio:focus-visible ~ .board__tabs {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 4px;
}

.page-home .board__tab {
  cursor: pointer;
  padding: .38rem .7rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--mute);
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  transition: color .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}

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

.page-home #board-1:checked ~ .board__tabs .board__tab[for="board-1"],
.page-home #board-2:checked ~ .board__tabs .board__tab[for="board-2"],
.page-home #board-3:checked ~ .board__tabs .board__tab[for="board-3"],
.page-home #board-4:checked ~ .board__tabs .board__tab[for="board-4"] {
  color: var(--ink-950);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-home .board__panel {
  display: none;
  animation: home-panel-in .28s var(--ease);
}

.page-home #board-1:checked ~ .board__panels .board__panel:nth-child(1),
.page-home #board-2:checked ~ .board__panels .board__panel:nth-child(2),
.page-home #board-3:checked ~ .board__panels .board__panel:nth-child(3),
.page-home #board-4:checked ~ .board__panels .board__panel:nth-child(4) {
  display: block;
}

@keyframes home-panel-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.page-home .board__panel p {
  margin: 0 0 .7rem;
  font-size: .86rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-home .board__chips {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .board__chips li {
  padding: .25rem .55rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--cyan-soft);
  border: 1px solid rgba(45, 226, 197, .35);
  border-radius: var(--radius-small);
  background: rgba(45, 226, 197, .07);
}

.page-home .board__art {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  margin-top: 1rem;
  object-fit: cover;
  border: 1px solid rgba(62, 107, 94, .55);
  border-radius: var(--radius-small);
}

/* 右侧数据卡流 */
.page-home .deck {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
}

.page-home .deck-card {
  position: relative;
  padding: var(--home-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background: var(--ink-900);
  transition: border-color .35s var(--ease), background .35s var(--ease);
}

.page-home .deck-card:hover {
  border-color: var(--cyan);
  background: var(--ink-800);
}

.page-home .deck-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin-bottom: .7rem;
}

.page-home .deck-card__title {
  margin: .55rem 0 .45rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 3.2vw, 1.28rem);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home .deck-card img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  margin-top: .6rem;
  object-fit: cover;
  border-radius: var(--radius-small);
}

.page-home .deck-card__text {
  margin: .8rem 0 0;
  font-size: .87rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-home .facts {
  display: grid;
  gap: .4rem;
  margin: .9rem 0 0;
  padding: 0;
  list-style: none;
}

.page-home .facts li {
  display: flex;
  justify-content: space-between;
  gap: .75rem;
  padding-top: .4rem;
  font-size: .78rem;
  border-top: 1px solid rgba(62, 107, 94, .5);
}

.page-home .facts__k {
  color: var(--mute);
  letter-spacing: .06em;
}

.page-home .facts__v {
  color: var(--cyan-soft);
}

.page-home .rounds {
  display: grid;
  gap: .3rem;
  margin: .8rem 0 1rem;
  padding: 0;
  list-style: none;
}

.page-home .rounds li {
  display: flex;
  justify-content: space-between;
  gap: .5rem;
  padding: .38rem .1rem;
  font-size: .8rem;
  border-bottom: 1px dashed rgba(62, 107, 94, .55);
}

.page-home .rounds__n {
  color: var(--cyan-soft);
  letter-spacing: .04em;
}

.page-home .rounds__m {
  color: var(--mute);
}

.page-home .deck-cta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
  padding: .85rem 1rem;
  text-decoration: none;
  color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background: rgba(31, 92, 74, .32);
  transition: border-color .35s var(--ease), background .35s var(--ease);
}

.page-home .deck-cta:hover {
  border-color: var(--cyan);
  background: rgba(31, 92, 74, .55);
}

.page-home .deck-cta__k {
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--ember);
}

.page-home .deck-cta__t {
  font-size: .9rem;
}

.page-home .deck-cta__i {
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--cyan);
}

/* 章节头 */
.page-home .block-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(.7rem, 2.5vw, 1.4rem);
  margin-bottom: var(--home-gap);
  padding-bottom: .9rem;
  border-bottom: 1px solid rgba(62, 107, 94, .5);
}

.page-home .block-head__num {
  font-size: clamp(1.5rem, 4.6vw, 2.2rem);
  line-height: 1;
  letter-spacing: .02em;
  color: rgba(45, 226, 197, .34);
}

.page-home .block-head__title {
  margin: .4rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 4.4vw, 2rem);
  line-height: 1.25;
  letter-spacing: -.015em;
  color: var(--paper);
}

/* 三段场景 */
.page-home .flow {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .flow__item {
  padding: var(--home-pad);
  border: 1px solid var(--line);
  border-left: 3px solid var(--ink-700);
  border-radius: var(--radius-organic);
  background: rgba(11, 42, 35, .68);
  transition: border-color .35s var(--ease);
}

.page-home .flow__item:hover {
  border-left-color: var(--cyan);
}

.page-home .flow__step {
  display: inline-block;
  margin-bottom: .55rem;
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--ember);
}

.page-home .flow__item h3 {
  margin: 0 0 .45rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--paper);
}

.page-home .flow__item p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.75;
  color: var(--mute);
}

/* 双版本 */
.page-home .versions {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .version {
  padding: var(--home-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background: var(--ink-900);
}

.page-home .version--now {
  border-color: rgba(45, 226, 197, .6);
  background: linear-gradient(165deg, rgba(45, 226, 197, .1), var(--ink-900) 58%);
}

.page-home .version--past {
  border-style: dashed;
}

.page-home .version__badge {
  display: inline-block;
  margin: 0 0 .8rem;
  padding: .28rem .6rem;
  font-size: .7rem;
  letter-spacing: .12em;
  border-radius: var(--radius-small);
}

.page-home .version--now .version__badge {
  color: var(--ink-950);
  background: var(--cyan);
}

.page-home .version--past .version__badge {
  color: var(--mute);
  border: 1px solid var(--line);
}

.page-home .version h3 {
  margin: 0 0 .5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.1rem, 3.4vw, 1.32rem);
  line-height: 1.35;
  color: var(--paper);
}

.page-home .version p {
  margin: 0 0 .9rem;
  font-size: .87rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-home .version__list {
  display: grid;
  gap: .45rem;
  margin: 0 0 1.2rem;
  padding: 0;
  list-style: none;
}

.page-home .version__list li {
  position: relative;
  padding-left: 1.05rem;
  font-size: .85rem;
  line-height: 1.6;
  color: var(--paper);
}

.page-home .version__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: .45rem;
  height: 1px;
  background: var(--cyan);
}

/* 四步 */
.page-home .steps {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-home .step {
  padding: var(--home-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background: rgba(11, 42, 35, .72);
  transition: border-color .35s var(--ease), background .35s var(--ease);
}

.page-home .step:hover {
  border-color: var(--cyan);
  background: rgba(18, 61, 50, .9);
}

.page-home .step__n {
  display: inline-block;
  margin-bottom: .55rem;
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-home .step h3 {
  margin: 0 0 .45rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--paper);
}

.page-home .step p {
  margin: 0;
  font-size: .86rem;
  line-height: 1.75;
  color: var(--mute);
}

/* 信任带 */
.page-home .stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: var(--home-gap) 0;
  background: rgba(62, 107, 94, .55);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  overflow: hidden;
}

.page-home .stat {
  display: grid;
  gap: .2rem;
  padding: 1rem;
  background: var(--ink-950);
}

.page-home .stat__n {
  font-size: clamp(1.45rem, 4vw, 2rem);
  line-height: 1.1;
  color: var(--cyan-soft);
}

.page-home .stat__l {
  font-size: .78rem;
  color: var(--mute);
}

/* 收尾 */
.page-home .cta {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background: linear-gradient(120deg, rgba(18, 61, 50, .95), rgba(6, 26, 22, .95));
}

.page-home .cta::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 90, 54, .26), transparent 66%);
  pointer-events: none;
}

.page-home .cta h2 {
  position: relative;
  margin: 0 0 .55rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 4.2vw, 1.85rem);
  line-height: 1.3;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-home .cta p {
  position: relative;
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-home .cta__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

/* 链接与节奏 */
.page-home .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .88rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: .12rem;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}

.page-home .link-arrow::after {
  content: "→";
  font-family: var(--font-mono);
  transition: transform .3s var(--ease);
}

.page-home .link-arrow:hover {
  color: var(--cyan-soft);
  border-color: var(--cyan);
}

.page-home .link-arrow:hover::after {
  transform: translateX(3px);
}

.page-home .block-foot {
  margin: var(--home-gap) 0 0;
}

/* 响应式 */
@media (min-width: 640px) {
  .page-home .deck {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .deck-card--wide {
    grid-column: 1 / -1;
  }

  .page-home .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-home .versions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-home .cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-home .rail__title {
    font-size: clamp(2rem, 2.9vw, 2.6rem);
  }
}

@media (min-width: 1080px) {
  .page-home .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>