/* ===== 首页专属样式 · 作用域 .page-home ===== */
.page-home {
  --home-slant: 8deg;
  --home-shadow: 0 24px 60px -32px rgba(11, 44, 77, 0.42);
  background: var(--seagull);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--night);
  color: var(--seagull);
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-home .hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 82% 0%, rgba(18, 227, 198, 0.18) 0%, transparent 54%),
    linear-gradient(168deg, rgba(6, 26, 46, 0.42) 0%, rgba(6, 26, 46, 0.82) 48%, var(--night) 100%);
}

.page-home .hero__inner {
  position: relative;
  z-index: 2;
  padding-top: clamp(96px, 16vh, 190px);
  padding-bottom: clamp(56px, 9vh, 110px);
}

.page-home .hero__eyebrow {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .hero__eyebrow b {
  color: var(--seagull);
  font-weight: 600;
}

.page-home .hero__title {
  margin: 0 0 26px;
  max-width: 20ch;
  font-size: clamp(2.6rem, 7.4vw, 6.2rem);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--seagull);
}

.page-home .hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--on-dark);
}

.page-home .hero__float {
  position: absolute;
  z-index: 3;
  padding: 8px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(18, 227, 198, 0.55);
  background: rgba(6, 26, 46, 0.62);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.page-home .hero__float--a { top: 17%; right: 5%; }
.page-home .hero__float--b { top: 30%; right: 12%; }

/* ---------- 首屏浅色面板与入口 ---------- */
.page-home .hero__panel {
  position: relative;
  z-index: 3;
  background: var(--mineral);
  clip-path: polygon(0 24%, 100% 0%, 100% 100%, 0 100%);
  padding: clamp(84px, 12vw, 128px) 0 clamp(44px, 5vw, 68px);
}

.page-home .hero__panel-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-home .hero__entries {
  display: grid;
  gap: 14px;
}

.page-home .entry {
  display: grid;
  gap: 6px;
  padding: 22px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.page-home .entry__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.page-home .entry__title {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-home .entry__meta {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
}

.page-home .entry--primary {
  background: var(--night);
  color: var(--seagull);
  box-shadow: var(--home-shadow);
}

.page-home .entry--primary .entry__kicker { color: var(--cyan); }
.page-home .entry--primary .entry__meta { color: var(--on-dark-soft); }

.page-home .entry--secondary {
  background: var(--seagull);
  color: var(--deep);
  border: 1px solid var(--line-strong);
}

.page-home .entry--secondary .entry__kicker { color: var(--violet); }
.page-home .entry--secondary .entry__meta { color: var(--ink-soft); }

.page-home .entry:hover,
.page-home .entry:focus-visible {
  transform: translateY(-3px);
}

.page-home .hero__shot {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--home-shadow);
}

.page-home .hero__shot img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 190px;
  object-fit: cover;
}

/* ---------- 通用章节间距 ---------- */
.page-home .section {
  padding: clamp(64px, 10vw, 128px) 0;
}

/* ---------- 02 平台简介 ---------- */
.page-home .about-grid {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
}

.page-home .about-grid__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-home .about-grid__stats li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  background: var(--seagull);
}

.page-home .stat-num {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--deep);
}

.page-home .stat-label {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  text-align: right;
}

/* ---------- 03 轮次对照 ---------- */
.page-home .section--rounds {
  background: linear-gradient(180deg, var(--seagull) 0%, var(--mineral) 100%);
}

.page-home .rounds__intro {
  margin-top: 8px;
}

.page-home .rounds {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .rounds__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.page-home .rounds__tab {
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  background: var(--seagull);
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-home .rounds__tab:hover,
.page-home .rounds__tab:focus-visible {
  background: var(--deep);
  border-color: var(--deep);
  color: var(--seagull);
}

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

.page-home .rcard {
  display: none;
  padding: clamp(24px, 4vw, 38px);
  border-radius: var(--radius-lg);
  background: var(--seagull);
  border: 1px solid var(--line-strong);
  box-shadow: var(--home-shadow);
}

.page-home .rcard.is-default { display: block; }
.page-home .rcard:target { display: block; }
.page-home .rounds:has(.rcard:target) .rcard.is-default { display: none; }

.page-home .rcard__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-home .rcard__no {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--violet);
}

.page-home .rcard__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-home .rcard__nums {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 24px 0;
}

.page-home .rcard__nums div {
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--mineral);
}

.page-home .rcard__nums dt {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.page-home .rcard__nums dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--deep);
}

.page-home .rcard__note {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-home .rounds__figure {
  margin-top: clamp(28px, 4vw, 48px);
}

/* ---------- 04 两条路径 ---------- */
.page-home .paths {
  display: grid;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .path {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(26px, 4vw, 40px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--seagull);
}

.page-home .path--new {
  background: var(--mineral);
  border-color: transparent;
}

.page-home .path--return {
  background: var(--deep);
  border-color: transparent;
  color: var(--seagull);
}

.page-home .path__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--moss);
}

.page-home .path--return .path__label { color: var(--cyan); }

.page-home .path__title {
  margin: 0;
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--deep);
}

.page-home .path--return .path__title { color: var(--seagull); }

.page-home .path__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .path__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  font-size: 15.5px;
  line-height: 1.7;
}

.page-home .path__steps b {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.page-home .path__body {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-home .path--return .path__body { color: var(--on-dark); }

.page-home .path .btn {
  align-self: flex-start;
  margin-top: 4px;
}

.page-home .path--return .btn--ghost {
  border-color: rgba(246, 248, 249, 0.36);
  color: var(--seagull);
}

/* ---------- 05 覆盖与节奏 ---------- */
.page-home .reach {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.page-home .reach__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  background: var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-home .reach__list div {
  padding: 18px 20px;
  background: var(--seagull);
}

.page-home .reach__list dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.page-home .reach__list dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--deep);
}

.page-home .reach__figure {
  margin: 0;
}

/* ---------- 06 开始使用 ---------- */
.page-home .section--launch {
  position: relative;
  overflow: hidden;
  background: var(--night);
}

.page-home .section--launch::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(70% 60% at 12% 0%, rgba(18, 227, 198, 0.16) 0%, transparent 62%);
  pointer-events: none;
}

.page-home .section--launch .shell {
  position: relative;
  z-index: 1;
}

.page-home .launch__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .launch__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 24px;
  border-radius: var(--radius-lg);
  background: rgba(246, 248, 249, 0.06);
  border: 1px solid rgba(246, 248, 249, 0.14);
  color: var(--seagull);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.page-home .launch__card:hover,
.page-home .launch__card:focus-visible {
  background: rgba(18, 227, 198, 0.1);
  border-color: rgba(18, 227, 198, 0.5);
  transform: translateY(-3px);
}

.page-home .launch__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-home .launch__title {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-home .launch__desc {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--on-dark);
}

.page-home .launch__foot {
  margin: clamp(26px, 3vw, 38px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-dark);
}

.page-home .launch__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 焦点环 ---------- */
.page-home a:focus-visible,
.page-home .entry:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- 响应式 ---------- */
@media (max-width: 859px) {
  .page-home .hero__float { display: none; }

  .page-home .hero__panel {
    clip-path: polygon(0 8%, 100% 0%, 100% 100%, 0 100%);
    padding-top: clamp(56px, 13vw, 88px);
  }

  .page-home .hero__title { font-size: clamp(2.3rem, 11vw, 3.6rem); }

  .page-home .rcard__nums { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
  .page-home .rcard__nums div { padding: 13px 12px; }
  .page-home .rcard__nums dd { font-size: 1.3rem; }
}

@media (max-width: 520px) {
  .page-home .about-grid__stats li {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .page-home .stat-label { text-align: left; }

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

@media (min-width: 860px) {
  .page-home .paths { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .page-home .hero__panel-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-home .about-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    align-items: start;
  }

  .page-home .reach {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 820px) {
  .page-home .launch__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1600px) {
  .page-home .hero__inner { padding-top: clamp(150px, 18vh, 230px); }
  .page-home .hero__panel-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry,
  .page-home .rounds__tab,
  .page-home .launch__card {
    transition: none;
  }
  .page-home .entry:hover,
  .page-home .launch__card:hover {
    transform: none;
  }
}
</main>