.page-home {
  --home-block: clamp(4rem, 9vw, 8rem);
  --home-rail: clamp(1.25rem, 4vw, 2.5rem);
  position: relative;
  min-width: 0;
  overflow-x: clip;
  color: var(--ice-100);
  font-family: var(--font-sans);
  background: var(--navy-950);
}

.page-home .home-crumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.75rem var(--home-rail) 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist-300);
}

.page-home .home-crumbs .breadcrumbs__sep {
  color: var(--orange-500);
}

/* ---------- 首屏 ---------- */
.home-hero {
  position: relative;
  display: grid;
  gap: 2.5rem;
  padding: clamp(2.5rem, 6vw, 5rem) var(--home-rail) var(--home-block);
  isolation: isolate;
}

.home-hero__media {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(560px, 72vw);
  margin: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.home-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
  opacity: 0.32;
  -webkit-mask-image: linear-gradient(102deg, transparent 6%, #000 68%);
  mask-image: linear-gradient(102deg, transparent 6%, #000 68%);
}

.home-hero__copy {
  position: relative;
  z-index: 1;
  max-width: 46rem;
}

.home-hero__title {
  margin: 0.85rem 0 1.35rem;
  font-size: clamp(2.6rem, 7.4vw, 5.4rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--ice-100);
}

.home-hero__title-line {
  display: block;
}

.home-hero__title-line--accent {
  color: var(--orange-500);
  text-shadow: 0 0 46px rgba(255, 107, 26, 0.28);
}

.home-hero__lead {
  max-width: 33rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mist-300);
}

.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.home-hero__aside {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.5rem;
  align-content: start;
  padding-left: 1.15rem;
  border-left: var(--line);
}

.home-hero__note {
  color: var(--orange-500);
  opacity: 0.9;
}

.home-hero__stats {
  display: grid;
  gap: 0.9rem;
  margin: 0;
}

.home-hero__stat {
  display: grid;
  gap: 0.3rem;
  padding: 0.7rem 0 0.7rem 0.9rem;
  border-left: 2px solid var(--navy-700);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.home-hero__stat:hover {
  border-left-color: var(--orange-500);
  background: rgba(26, 47, 82, 0.45);
}

.home-hero__stat dt {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--mist-300);
}

.home-hero__stat dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--teal-400);
}

.home-hero__stat:first-child dd {
  color: var(--ice-100);
}

/* ---------- 通用章节内边距 ---------- */
.home-rounds,
.home-standings,
.home-desktop,
.home-register,
.home-changelog,
.home-routing {
  padding: var(--home-block) var(--home-rail);
  border-top: var(--line);
}

.home-rounds__head,
.home-register__head,
.home-routing__head {
  display: grid;
  gap: 0.9rem;
  max-width: 46rem;
  margin-bottom: clamp(1.75rem, 4vw, 3rem);
}

.home-rounds__lead,
.home-register__head .lead,
.home-routing__head .lead {
  color: var(--mist-300);
  line-height: 1.85;
}

/* ---------- 当天轮次 ---------- */
.home-rounds__body {
  display: grid;
  gap: 2rem;
}

.round-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: var(--line);
}

.round-timeline__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "dot time tag"
    "dot info info";
  gap: 0.3rem 0.9rem;
  align-items: center;
  padding: 1.05rem 0.5rem 1.05rem 0;
  border-bottom: var(--line);
  transition: background-color var(--dur) var(--ease);
}

.round-timeline__item:hover {
  background: rgba(26, 47, 82, 0.42);
}

.round-timeline__item .dot {
  grid-area: dot;
  align-self: start;
  margin-top: 0.55rem;
}

.round-timeline__time {
  grid-area: time;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}

.round-timeline__info {
  grid-area: info;
}

.round-timeline__info h3 {
  margin: 0 0 0.2rem;
  color: var(--ice-100);
}

.round-timeline__info p {
  margin: 0;
  color: var(--mist-300);
}

.round-timeline__item .tag {
  grid-area: tag;
  align-self: start;
  white-space: nowrap;
}

.home-rounds__media {
  margin: 0;
}

/* ---------- 积分榜 ---------- */
.home-standings {
  background:
    linear-gradient(180deg, rgba(16, 31, 58, 0.7) 0%, rgba(5, 11, 24, 0) 72%),
    var(--navy-900);
}

.home-standings__layout {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.home-standings__head {
  display: grid;
  gap: 0.9rem;
}

.home-standings__head .lead {
  color: var(--mist-300);
  line-height: 1.85;
  max-width: 34rem;
}

.home-standings__meta {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.home-standings__meta li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: 0.9rem;
  color: var(--mist-300);
  padding-left: 0.9rem;
  border-left: 1px solid var(--navy-700);
}

.home-standings__meta .mono {
  color: var(--amber-300);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.home-standings__panel {
  padding: 1.25rem clamp(1rem, 2.5vw, 1.75rem);
  background: rgba(5, 11, 24, 0.62);
}

.home-standings__panel-head {
  display: none;
}

.home-standings__row {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr) auto;
  grid-template-areas:
    "rank team pts"
    "rank bar bar";
  gap: 0.5rem 0.85rem;
  align-items: center;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--navy-700);
}

.home-standings__row:last-child {
  border-bottom: 0;
}

.home-standings__rank {
  grid-area: rank;
  font-size: 0.95rem;
  color: var(--navy-500);
  letter-spacing: 0.05em;
}

.home-standings__row:first-of-type .home-standings__rank {
  color: var(--orange-500);
}

.home-standings__team {
  grid-area: team;
  font-size: 0.95rem;
  color: var(--ice-100);
}

.home-standings__bar {
  grid-area: bar;
  display: block;
  position: relative;
  height: 4px;
  background: var(--navy-800);
  overflow: hidden;
}

.home-standings__bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--orange-500), var(--amber-300));
  transition: filter var(--dur) var(--ease);
}

.home-standings__bar--synced i {
  background: linear-gradient(90deg, var(--teal-400), var(--teal-200));
}

.home-standings__row:hover .home-standings__bar i {
  filter: brightness(1.25);
}

.home-standings__pts {
  grid-area: pts;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ice-100);
}

.home-standings__media {
  margin: clamp(2rem, 4vw, 3rem) 0 0;
}

/* ---------- 桌面端 ---------- */
.home-desktop__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.home-desktop__copy {
  display: grid;
  gap: 0.9rem;
  justify-items: start;
}

.home-desktop__copy .lead {
  color: var(--mist-300);
  line-height: 1.85;
  max-width: 32rem;
  margin: 0;
}

.home-desktop__facts {
  list-style: none;
  margin: 0.75rem 0 1.5rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.home-desktop__facts li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--mist-300);
}

.home-desktop__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.6rem;
  height: 1px;
  background: var(--orange-500);
}

.home-desktop__media {
  margin: 0;
}

/* ---------- 注册对照 ---------- */
.home-register {
  position: relative;
  background:
    radial-gradient(ellipse at 82% 0%, rgba(255, 107, 26, 0.1), transparent 58%),
    var(--navy-950);
}

.register-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.register-steps__item {
  position: relative;
  display: grid;
  gap: 0.6rem;
  padding: 1.75rem clamp(1.15rem, 2.5vw, 1.6rem) 1.5rem;
  border: var(--line);
  background: rgba(16, 31, 58, 0.6);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.register-steps__item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 34px;
  height: 2px;
  background: var(--orange-500);
}

.register-steps__item:hover,
.register-steps__item:focus-within {
  border-color: var(--navy-500);
  background: rgba(26, 47, 82, 0.82);
  transform: translateY(-2px);
}

.register-steps__index {
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--orange-500);
}

.register-steps__item h3 {
  margin: 0;
  color: var(--ice-100);
}

.register-steps__item p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--mist-300);
}

.register-steps__hint {
  display: block;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--navy-700);
  color: var(--navy-500);
}

.home-register__foot {
  margin: 1.75rem 0 0;
  font-size: 0.9rem;
  color: var(--mist-300);
}

.home-register__foot a,
.home-routing__foot a {
  color: var(--teal-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(33, 212, 181, 0.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.home-register__foot a:hover,
.home-routing__foot a:hover {
  color: var(--teal-200);
  border-bottom-color: var(--teal-200);
}

/* ---------- 变更说明 ---------- */
.home-changelog__layout {
  display: grid;
  gap: 2.5rem;
}

.home-changelog__head {
  display: grid;
  gap: 0.9rem;
  align-content: start;
  justify-items: start;
}

.home-changelog__head .lead {
  color: var(--mist-300);
  line-height: 1.85;
  margin: 0;
}

.home-changelog__head .btn {
  margin-top: 0.6rem;
}

.changelog-list {
  display: grid;
  border-top: var(--line);
}

.changelog-list__item {
  display: grid;
  gap: 0.4rem;
  padding: 1.25rem 0.5rem 1.25rem 0;
  border-bottom: var(--line);
  transition: background-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.changelog-list__item:hover {
  background: rgba(26, 47, 82, 0.4);
  padding-left: 0.75rem;
}

.changelog-list__item .caption {
  color: var(--teal-400);
  letter-spacing: 0.06em;
}

.changelog-list__item h3 {
  margin: 0;
  color: var(--ice-100);
}

.changelog-list__item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--mist-300);
}

/* ---------- 快速分流 ---------- */
.home-routing {
  padding-bottom: calc(var(--home-block) * 1.1);
}

.routing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1px;
  background: var(--navy-700);
  border: var(--line);
}

.routing-grid__card {
  display: grid;
  gap: 0.55rem;
  align-content: start;
  padding: clamp(1.4rem, 3vw, 2.15rem);
  background: var(--navy-900);
  color: inherit;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease);
}

.routing-grid__card:hover {
  background: var(--navy-800);
}

.routing-grid__card:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: -3px;
}

.routing-grid__no {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--mist-300);
}

.routing-grid__card h3 {
  margin: 0;
  color: var(--ice-100);
  transition: color var(--dur) var(--ease);
}

.routing-grid__card:hover h3 {
  color: var(--amber-300);
}

.routing-grid__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist-300);
}

.routing-grid__card::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--orange-500);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.routing-grid__card:hover::after,
.routing-grid__card:focus-visible::after {
  opacity: 1;
  transform: translateX(0);
}

.home-routing__foot {
  margin: 1.5rem 0 0;
  color: var(--mist-300);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .home-standings__panel-head {
    display: grid;
    grid-template-columns: 2.2rem minmax(0, 1fr) auto;
    gap: 0.85rem;
    padding: 0 0 0.85rem;
    border-bottom: 1px solid var(--navy-700);
    color: var(--navy-500);
    letter-spacing: 0.12em;
  }

  .home-standings__row {
    grid-template-columns: 2.2rem minmax(0, 12rem) minmax(0, 1fr) auto;
    grid-template-areas: "rank team bar pts";
    gap: 0.85rem 1rem;
    padding: 1rem 0;
  }

  .register-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .home-hero {
    grid-template-columns: minmax(0, 7fr) minmax(240px, 3fr);
    column-gap: 3rem;
    align-items: start;
  }

  .home-rounds__body {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }

  .home-standings__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: clamp(2rem, 4vw, 4rem);
  }

  .home-desktop__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: clamp(2rem, 4vw, 4.5rem);
  }

  .home-changelog__layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(2rem, 5vw, 4.5rem);
  }

  .home-standings__media {
    margin-top: clamp(2.5rem, 5vw, 4rem);
    margin-left: clamp(0rem, 6vw, 5rem);
  }
}

@media (min-width: 1200px) {
  .home-hero__media {
    width: min(620px, 46vw);
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-hero__stat,
  .round-timeline__item,
  .register-steps__item,
  .changelog-list__item,
  .routing-grid__card,
  .routing-grid__card::after,
  .home-standings__bar i {
    transition: none;
  }

  .register-steps__item:hover,
  .register-steps__item:focus-within {
    transform: none;
  }

  .changelog-list__item:hover {
    padding-left: 0.5rem;
  }

  .routing-grid__card:hover::after,
  .routing-grid__card:focus-visible::after {
    transform: none;
  }
}
<<<END>>>