.page-home {
  --hm-gap: clamp(20px, 3.4vw, 44px);
  --hm-sect-y: clamp(44px, 6.6vw, 104px);
  --hm-radius: 4px;
  --hm-surface: rgba(18, 42, 92, 0.42);
  --hm-surface-2: rgba(18, 42, 92, 0.74);
  color: var(--silver);
  overflow-x: hidden;
}

.page-home .hm-wrap {
  width: 100%;
  max-width: 1320px;
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.page-home .hm-context {
  padding-top: clamp(22px, 3.6vw, 44px);
}

.page-home .hm-sec {
  position: relative;
  padding-block: var(--hm-sect-y);
}

.page-home .hm-sec > .hm-wrap {
  position: relative;
  z-index: 1;
}

.page-home .hm-sec .sec-head {
  margin-bottom: clamp(14px, 2vw, 22px);
}

/* ---------- 01 开篇 ---------- */

.page-home .hm-sec--open {
  padding-top: clamp(16px, 2.6vw, 34px);
  padding-bottom: clamp(34px, 5vw, 68px);
}

.page-home .hm-open__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 42px);
}

.page-home .hm-kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-home .hm-h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 6.2vw, 58px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.page-home .hm-lede {
  max-width: 62ch;
  margin: 0;
}

.page-home .hm-open__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-home .hm-open__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--hm-radius);
  box-shadow: 0 34px 72px -46px rgba(0, 0, 0, 0.92);
}

.page-home .hm-open__media img,
.page-home .hm-switch__media img,
.page-home .hm-board__cover img,
.page-home .hm-season__media img,
.page-home .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* 公告卡 */

.page-home .hm-notice {
  position: relative;
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  padding: clamp(22px, 3vw, 34px) clamp(20px, 3vw, 34px) clamp(22px, 3vw, 30px)
    clamp(26px, 3.4vw, 40px);
  background: linear-gradient(122deg, rgba(47, 107, 255, 0.18), rgba(18, 42, 92, 0.78) 48%, rgba(10, 18, 48, 0.92));
  border: 1px solid var(--line-strong);
  border-radius: var(--hm-radius);
  overflow: hidden;
}

.page-home .hm-notice::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--orange), var(--orange-soft));
}

.page-home .hm-notice__title {
  margin: 12px 0 8px;
  font-size: clamp(20px, 2.7vw, 28px);
  font-weight: 700;
  line-height: 1.35;
  color: #ffffff;
}

.page-home .hm-notice__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver-dim);
}

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

.page-home .hm-notice__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

.page-home .hm-notice__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--orange);
}

.page-home .hm-notice__more {
  align-self: end;
  justify-self: start;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.42);
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .hm-notice__more:hover,
.page-home .hm-notice__more:focus-visible {
  color: var(--orange-soft);
  border-bottom-color: var(--orange-soft);
}

/* 目录 */

.page-home .hm-dir {
  margin-top: clamp(24px, 3.6vw, 44px);
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid var(--line-strong);
}

.page-home .hm-dir__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--silver-dim);
}

.page-home .hm-dir__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .hm-dir__link {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
  padding: 14px 14px 14px 16px;
  border-left: 2px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: border-color 220ms var(--ease), background-color 220ms var(--ease),
    transform 220ms var(--ease);
}

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

.page-home .hm-dir__name {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
}

.page-home .hm-dir__desc {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.6;
  color: var(--silver-dim);
}

.page-home .hm-dir__link:hover,
.page-home .hm-dir__link:focus-visible {
  border-left-color: var(--orange);
  background: rgba(47, 107, 255, 0.09);
  transform: translateX(3px);
}

.page-home .hm-dir__link:focus-visible,
.page-home .hm-index__cell:focus-visible,
.page-home .hm-track:focus-visible,
.page-home .hm-notice__more:focus-visible,
.page-home a.btn:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 02 页面切换反馈 ---------- */

.page-home .hm-sec--switch {
  background: linear-gradient(180deg, rgba(5, 11, 22, 0), rgba(18, 42, 92, 0.34) 40%, rgba(5, 11, 22, 0));
}

.page-home .hm-switch__lede {
  max-width: 64ch;
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-home .hm-switch {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 38px);
  align-items: center;
}

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

.page-home .coord {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  background: var(--hm-surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--hm-radius);
}

.page-home .coord--accent {
  background: rgba(255, 107, 44, 0.11);
  border-left-color: var(--orange);
}

.page-home .coord__val {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.6vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: #ffffff;
}

.page-home .coord--accent .coord__val {
  color: var(--orange);
}

.page-home .coord__val small {
  margin-left: 6px;
  font-size: 0.36em;
  font-weight: 400;
  color: var(--silver-dim);
}

.page-home .hm-switch__media {
  overflow: hidden;
  border-radius: var(--hm-radius);
  border: 1px solid var(--line);
}

.page-home .hm-switch__note {
  max-width: 76ch;
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver-dim);
}

.page-home .hm-fold {
  margin-top: clamp(20px, 3vw, 30px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-home .hm-fold summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange-soft);
}

.page-home .hm-fold summary::-webkit-details-marker {
  display: none;
}

.page-home .hm-fold summary::before {
  content: "+";
  display: inline-block;
  width: 18px;
  color: var(--orange);
}

.page-home .hm-fold[open] summary::before {
  content: "–";
}

.page-home .hm-fold summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 4px;
}

.page-home .hm-timeline {
  display: grid;
  gap: 16px;
  margin: 18px 0 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid var(--line-strong);
}

.page-home .hm-timeline li {
  position: relative;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-home .hm-timeline li::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
}

/* ---------- 03 榜单 ---------- */

.page-home .hm-sec--board::before {
  content: "";
  position: absolute;
  inset: 14% -12% 26%;
  background: linear-gradient(115deg, rgba(47, 107, 255, 0.16), rgba(47, 107, 255, 0) 62%);
  transform: skewY(-3deg);
  pointer-events: none;
}

.page-home .hm-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 42px);
  align-items: start;
}

.page-home .hm-board__cover {
  overflow: hidden;
  border-radius: var(--hm-radius);
  border: 1px solid var(--line-strong);
  box-shadow: 0 30px 66px -40px rgba(0, 0, 0, 0.9);
  transform: rotate(-1.2deg);
}

.page-home .hm-board__body .lede {
  margin: 0 0 22px;
  max-width: 56ch;
}

.page-home .hm-board__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.page-home .hm-board__stats .coord {
  border-left-color: var(--orange-soft);
}

.page-home .hm-board__rules {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-home .hm-board__rules li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 7px;
  font-size: 14px;
  color: var(--silver);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.page-home .hm-board__foot {
  max-width: 58ch;
  margin: 0 0 24px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--silver-dim);
}

.page-home .hm-board__cta {
  display: inline-block;
}

/* ---------- 04 季节轨道 ---------- */

.page-home .hm-season__lede {
  max-width: 66ch;
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-home .hm-season {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-home .hm-tracks {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-home .hm-track {
  position: relative;
  display: block;
  padding: 20px 18px;
  text-decoration: none;
  color: inherit;
  background: var(--hm-surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
  border-radius: var(--hm-radius);
  overflow: hidden;
  transition: transform 220ms var(--ease), background-color 220ms var(--ease),
    border-color 220ms var(--ease);
}

.page-home .hm-track--spring {
  border-top-color: var(--mint);
}

.page-home .hm-track--summer {
  border-top-color: var(--orange);
}

.page-home .hm-track--autumn {
  border-top-color: var(--orange-soft);
}

.page-home .hm-track--winter {
  border-top-color: var(--blue);
}

.page-home .hm-track:hover,
.page-home .hm-track:focus-visible {
  transform: translateY(-3px);
  background: var(--hm-surface-2);
  border-color: var(--line-strong);
}

.page-home .hm-track__season {
  display: block;
  font-size: 19px;
  font-weight: 700;
  color: #ffffff;
}

.page-home .hm-track__hint {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--silver-dim);
}

.page-home .hm-track__list {
  display: grid;
  gap: 7px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--silver);
}

.page-home .hm-season__media {
  overflow: hidden;
  border-radius: var(--hm-radius);
  border: 1px solid var(--line);
}

/* ---------- 05 分区索引 ---------- */

.page-home .hm-index__lede {
  max-width: 64ch;
  margin: 0 0 clamp(22px, 3vw, 32px);
}

.page-home .hm-index {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .hm-index__cell {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 24px 20px 22px;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(160deg, rgba(18, 42, 92, 0.5), rgba(10, 18, 48, 0.86));
  border: 1px solid var(--line);
  border-radius: var(--hm-radius);
  transition: transform 220ms var(--ease), border-color 220ms var(--ease),
    background-color 220ms var(--ease);
}

.page-home .hm-index__cell:hover {
  transform: translateY(-3px);
  border-color: var(--orange);
}

.page-home .hm-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-home .hm-index__name {
  font-size: 19px;
  font-weight: 700;
  color: #ffffff;
}

.page-home .hm-index__desc {
  font-size: 14px;
  line-height: 1.68;
  color: var(--silver-dim);
}

.page-home .hm-index__path {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--silver);
  opacity: 0.76;
}

.page-home .hm-index__foot {
  margin: clamp(20px, 2.8vw, 30px) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver-dim);
}

/* ---------- 06 三步指引 ---------- */

.page-home .hm-sec--start {
  padding-bottom: clamp(52px, 7vw, 110px);
}

.page-home .hm-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .hm-step {
  position: relative;
  padding: 26px 22px 24px;
  background: rgba(5, 11, 22, 0.52);
  border: 1px solid var(--line);
  border-radius: var(--hm-radius);
}

.page-home .hm-step__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 107, 44, 0.4);
}

.page-home .hm-step__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
}

.page-home .hm-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--silver);
}

.page-home .hm-start__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-home .hm-start__note {
  max-width: 74ch;
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--silver-dim);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-home .hm-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-home .hm-tracks {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    align-items: start;
  }

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

@media (min-width: 860px) {
  .page-home .hm-notice {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    grid-template-areas:
      "head list"
      "more list";
    align-items: start;
  }

  .page-home .hm-notice__head {
    grid-area: head;
  }

  .page-home .hm-notice__list {
    grid-area: list;
  }

  .page-home .hm-notice__more {
    grid-area: more;
  }

  .page-home .hm-dir__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-home .hm-open__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .hm-open__lead {
    grid-column: 1 / span 7;
  }

  .page-home .hm-open__media {
    grid-column: 8 / span 5;
    align-self: center;
  }

  .page-home .hm-notice {
    grid-column: 1 / span 12;
  }

  .page-home .hm-dir {
    grid-column: 1 / span 12;
  }

  .page-home .hm-switch {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  }

  .page-home .hm-board {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  }
}

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

@media (hover: hover) and (min-width: 780px) {
  .page-home .hm-track__list {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 300ms var(--ease), opacity 240ms var(--ease),
      margin-top 300ms var(--ease);
  }

  .page-home .hm-track:hover .hm-track__list,
  .page-home .hm-track:focus-visible .hm-track__list,
  .page-home .hm-track:focus-within .hm-track__list {
    max-height: 240px;
    margin-top: 14px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hm-dir__link,
  .page-home .hm-track,
  .page-home .hm-index__cell,
  .page-home .hm-notice__more,
  .page-home .hm-track__list {
    transition: none;
  }

  .page-home .hm-dir__link:hover,
  .page-home .hm-dir__link:focus-visible,
  .page-home .hm-track:hover,
  .page-home .hm-track:focus-visible,
  .page-home .hm-index__cell:hover {
    transform: none;
  }

  .page-home .hm-board__cover {
    transform: none;
  }
}