.page-home {
  --ph-cyan-soft: rgba(22, 224, 200, 0.45);
  --ph-cyan-glow: rgba(22, 224, 200, 0.2);
  background-color: var(--yb-navy);
}

/* ============ 首屏封面 ============ */
.page-home .ph-cover {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: calc(var(--yb-header-h) + 44px) 0 clamp(52px, 8vw, 100px);
  background:
    radial-gradient(115% 85% at 84% 4%, rgba(22, 224, 200, 0.24), transparent 58%),
    radial-gradient(90% 70% at 4% 0%, rgba(255, 90, 43, 0.2), transparent 62%),
    linear-gradient(165deg, #0B1B33 0%, #14294A 58%, #0B1B33 100%);
  color: var(--yb-fg);
}

.page-home .ph-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: repeating-linear-gradient(0deg, rgba(244, 246, 248, 0.04) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

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

.page-home .ph-cover__kicker {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-home .ph-cover__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 56px);
}

.page-home .ph-cover__title {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  margin-left: -0.035em;
  font-size: clamp(38px, 8.4vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

.page-home .ph-cover__title span {
  display: block;
  color: var(--yb-cyan);
}

.page-home .ph-cover__lede {
  max-width: 46ch;
  font-size: clamp(16px, 1.7vw, 19px);
  color: var(--yb-muted);
}

.page-home .ph-cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: clamp(24px, 3vw, 34px) 0 clamp(26px, 4vw, 42px);
}

.page-home .ph-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: rgba(244, 246, 248, 0.18);
  border-top: 1px solid rgba(244, 246, 248, 0.18);
}

.page-home .ph-figures__cell {
  background: rgba(11, 27, 51, 0.78);
  padding: 14px 16px;
}

.page-home .ph-figures__key {
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yb-muted);
}

.page-home .ph-figures__val {
  margin: 6px 0 0;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1;
  color: var(--yb-yellow);
}

.page-home .ph-cover__side {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-home .ph-cover__figure {
  margin: 0;
  border: 1px solid var(--ph-cyan-soft);
  box-shadow: 10px 10px 0 0 rgba(22, 224, 200, 0.3);
}

/* 竖排索引 */
.page-home .ph-index__label {
  margin: 0 0 10px;
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--yb-muted);
}

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

.page-home .ph-index__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 13px 15px;
  border: 1px solid var(--ph-cyan-soft);
  background: rgba(11, 27, 51, 0.62);
  color: var(--yb-fg);
  text-decoration: none;
  font-size: 15px;
  transition: background-color 220ms var(--yb-ease), color 220ms var(--yb-ease),
    border-color 220ms var(--yb-ease), transform 220ms var(--yb-ease);
}

.page-home .ph-index__link:hover,
.page-home .ph-index__link:focus-visible {
  background: var(--yb-cyan);
  border-color: var(--yb-cyan);
  color: var(--yb-navy);
  transform: translateX(6px);
}

.page-home .ph-index__no {
  font-family: var(--yb-font-mono);
  font-size: 13px;
  color: var(--yb-cyan);
}

.page-home .ph-index__link:hover .ph-index__no,
.page-home .ph-index__link:focus-visible .ph-index__no {
  color: var(--yb-navy);
}

.page-home .ph-index__arrow {
  transition: transform 220ms var(--yb-ease);
}

.page-home .ph-index__link:hover .ph-index__arrow,
.page-home .ph-index__link:focus-visible .ph-index__arrow {
  transform: translateX(4px);
}

/* ============ 时间记录 ============ */
.page-home .ph-record__intro {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-home .ph-record__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-home .ph-ver {
  display: grid;
  gap: 18px;
}

.page-home .ph-ver__card {
  padding: 20px 22px;
  border-left: 4px solid var(--yb-cyan);
  background: rgba(215, 244, 240, 0.55);
  box-shadow: 6px 6px 0 0 rgba(22, 224, 200, 0.42);
}

.page-home .ph-ver__card--live {
  border-left-color: var(--yb-orange);
  background: rgba(255, 201, 60, 0.18);
  box-shadow: 6px 6px 0 0 rgba(255, 90, 43, 0.32);
}

.page-home .ph-ver__tag {
  margin-bottom: 10px;
}

.page-home .ph-ver__title {
  margin: 0 0 8px;
  font-size: 21px;
  line-height: 1.3;
  color: var(--yb-fg);
}

.page-home .ph-ver__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yb-muted);
}

.page-home .ph-record__figure {
  margin: 0;
  border: 1px solid rgba(42, 53, 71, 0.2);
  box-shadow: 8px 8px 0 0 rgba(42, 53, 71, 0.14);
}

.page-home .ph-record__foot {
  margin: clamp(26px, 4vw, 40px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--yb-muted);
}

.page-home .ph-record__foot a {
  color: var(--yb-fg);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-home .ph-record__foot a:hover,
.page-home .ph-record__foot a:focus-visible {
  color: var(--yb-cyan);
}

/* ============ 赛事服务目录 ============ */
.page-home .ph-services__intro {
  max-width: 64ch;
}

.page-home .ph-services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(28px, 4vw, 48px);
}

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

.page-home .ph-cats__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid var(--yb-line);
  background: rgba(11, 27, 51, 0.5);
  color: var(--yb-fg);
  text-decoration: none;
  transition: background-color 220ms var(--yb-ease), color 220ms var(--yb-ease),
    border-color 220ms var(--yb-ease), transform 220ms var(--yb-ease);
}

.page-home .ph-cats__link:hover,
.page-home .ph-cats__link:focus-visible {
  background: var(--yb-cyan);
  border-color: var(--yb-cyan);
  color: var(--yb-navy);
  transform: translateY(-4px);
}

.page-home .ph-cats__no {
  padding-top: 4px;
  font-family: var(--yb-font-mono);
  font-size: 13px;
  color: var(--yb-cyan);
}

.page-home .ph-cats__link:hover .ph-cats__no,
.page-home .ph-cats__link:focus-visible .ph-cats__no {
  color: var(--yb-navy);
}

.page-home .ph-cats__title {
  display: block;
  margin-bottom: 6px;
  font-size: 19px;
  font-weight: 700;
}

.page-home .ph-cats__text {
  display: block;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--yb-muted);
}

.page-home .ph-cats__link:hover .ph-cats__text,
.page-home .ph-cats__link:focus-visible .ph-cats__text {
  color: rgba(11, 27, 51, 0.82);
}

.page-home .ph-services__figure {
  margin: 0;
}

.page-home .ph-services__foot {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

/* ============ 收藏页面 V4 ============ */
.page-home .ph-v4__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}

.page-home .ph-v4__cta {
  margin-top: clamp(18px, 2.5vw, 28px);
}

.page-home .ph-v4__stats {
  display: grid;
  gap: 1px;
  background: rgba(11, 27, 51, 0.16);
  border: 1px solid rgba(11, 27, 51, 0.16);
}

.page-home .ph-stat {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  background: var(--yb-paper);
}

.page-home .ph-stat__num {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1;
  color: var(--yb-navy);
}

.page-home .ph-stat__label {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--yb-graphite);
}

/* ============ 周末两场 ============ */
.page-home .ph-weekend__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
}

.page-home .ph-weekend__figure {
  margin: 0;
  border: 1px solid var(--ph-cyan-soft);
  box-shadow: 10px 10px 0 0 rgba(22, 224, 200, 0.26);
}

.page-home .ph-weekend__copy .yb-body {
  max-width: 60ch;
}

.page-home .ph-track {
  position: relative;
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3vw, 36px);
  padding-left: 30px;
}

.page-home .ph-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--yb-cyan), rgba(22, 224, 200, 0.1));
  transform: rotate(2.5deg);
  transform-origin: top left;
}

.page-home .ph-node {
  position: relative;
  padding: 16px 18px;
  border: 1px solid var(--yb-line);
  background: var(--yb-surface);
  transition: transform 220ms var(--yb-ease), box-shadow 220ms var(--yb-ease);
}

.page-home .ph-node::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--yb-navy);
  border: 2px solid var(--yb-cyan);
  transition: box-shadow 220ms var(--yb-ease);
}

.page-home .ph-node:hover,
.page-home .ph-node:focus-within {
  transform: translateY(-4px);
  box-shadow: 8px 8px 0 0 rgba(22, 224, 200, 0.7);
}

.page-home .ph-node:hover::before,
.page-home .ph-node:focus-within::before {
  box-shadow: 0 0 0 6px var(--ph-cyan-glow);
}

.page-home .ph-node__time {
  margin: 0 0 6px;
  font-family: var(--yb-font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--yb-cyan);
}

.page-home .ph-node__title {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.35;
}

.page-home .ph-node__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--yb-muted);
}

.page-home .ph-node__pop {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  width: min(280px, 92%);
  margin: 0;
  padding: 12px 14px;
  background: var(--yb-navy);
  border: 1px solid var(--yb-cyan);
  color: var(--yb-fg);
  font-size: 13px;
  line-height: 1.65;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 200ms var(--yb-ease), transform 200ms var(--yb-ease), visibility 200ms;
}

.page-home .ph-node:hover .ph-node__pop,
.page-home .ph-node:focus-within .ph-node__pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ============ 更新节奏与合作 ============ */
.page-home .ph-updates__intro {
  max-width: 56ch;
}

.page-home .ph-updates__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(26px, 4vw, 40px);
}

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

.page-home .ph-rhythm__item {
  padding-left: 18px;
  border-left: 3px solid var(--yb-cyan);
}

.page-home .ph-rhythm__label {
  margin: 0;
  font-family: var(--yb-font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--yb-graphite);
}

.page-home .ph-rhythm__title {
  margin: 5px 0 6px;
  font-size: 18px;
  line-height: 1.35;
  color: var(--yb-fg);
}

.page-home .ph-rhythm__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yb-muted);
}

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

.page-home .ph-door {
  display: block;
  padding: 20px;
  background: var(--yb-navy);
  color: var(--yb-paper);
  text-decoration: none;
  border: 1px solid var(--yb-navy);
  box-shadow: 8px 8px 0 0 rgba(22, 224, 200, 0.5);
  transition: transform 220ms var(--yb-ease), box-shadow 220ms var(--yb-ease);
}

.page-home .ph-door:hover,
.page-home .ph-door:focus-visible {
  transform: translateY(-4px);
  box-shadow: 10px 12px 0 0 var(--yb-cyan);
}

.page-home .ph-door__title {
  display: block;
  font-size: 19px;
  font-weight: 700;
}

.page-home .ph-door__text {
  display: block;
  margin-top: 8px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(244, 246, 248, 0.78);
}

/* 收口刻度线 */
.page-home .ph-ruler {
  height: 12px;
  margin-top: clamp(38px, 5vw, 60px);
  border-top: 2px solid var(--yb-fg);
  background-image: repeating-linear-gradient(
    90deg,
    var(--yb-fg) 0 1px,
    transparent 1px 40px
  );
  background-repeat: repeat-x;
  background-position: 0 0;
  opacity: 0.45;
}

/* ============ 响应式 ============ */
@media (min-width: 600px) {
  .page-home .ph-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .ph-record__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-home .ph-services__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-home .ph-v4__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-home .ph-weekend__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-home .ph-updates__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

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

  .page-home .ph-cover__side {
    align-content: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .ph-index__link,
  .page-home .ph-cats__link,
  .page-home .ph-node,
  .page-home .ph-node__pop,
  .page-home .ph-door {
    transition: none;
  }

  .page-home .ph-index__link:hover,
  .page-home .ph-index__link:focus-visible,
  .page-home .ph-node:hover,
  .page-home .ph-node:focus-within,
  .page-home .ph-door:hover,
  .page-home .ph-door:focus-visible {
    transform: none;
  }
}