.page-home {
  background: var(--pitch-ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-home .u-mono,
.page-home .hero__metric-num,
.page-home .board__score-num,
.page-home .board__field-value,
.page-home .step__index,
.page-home .track__num,
.page-home .update__meta {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.page-home .section-kicker {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--arena-orange);
}

.page-home .section-title {
  margin: 0 0 14px;
  font-size: clamp(24px, 5.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -.01em;
  font-weight: 900;
  color: var(--paper);
}

.page-home .section-text {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted-sage);
}

.page-home .text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--electric-teal);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 197, .35);
  padding-bottom: 2px;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-home .text-link:hover,
.page-home .text-link:focus-visible {
  color: var(--score-lime);
  border-color: var(--score-lime);
}

/* ---------- 首屏框景 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 6vw, 58px) 0 clamp(38px, 7vw, 76px);
  border-bottom: var(--hair);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(45, 226, 197, .10), transparent 60%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 107, 44, .10), transparent 62%);
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  opacity: .10;
  pointer-events: none;
}

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

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: clamp(10px, 2.2vw, 22px);
  border: 1px solid var(--line-green);
  background-image: repeating-linear-gradient(90deg, var(--line-green) 0 1px, transparent 1px 58px);
  background-repeat: no-repeat;
  background-size: 100% 9px;
  background-position: 0 0;
  opacity: .7;
  pointer-events: none;
}

.page-home .hero::after {
  content: "";
  position: absolute;
  left: clamp(10px, 2.2vw, 22px);
  right: clamp(10px, 2.2vw, 22px);
  bottom: clamp(10px, 2.2vw, 22px);
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--line-green) 0 1px, transparent 1px 58px);
  background-repeat: no-repeat;
  background-size: 100% 9px;
  opacity: .7;
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-home .hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted-sage);
}

.page-home .hero__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--score-lime);
  box-shadow: 0 0 0 4px rgba(200, 255, 74, .16);
}

.page-home .hero__title {
  margin: 0 0 18px;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-home .hero__text {
  margin: 0 0 26px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted-sage);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

.page-home .hero__metrics {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-green);
  border: var(--hair);
}

.page-home .hero__metric {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: var(--panel-green);
}

.page-home .hero__metric-num {
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--score-lime);
}

.page-home .hero__metric-num em {
  font-style: normal;
  font-size: 16px;
  color: var(--arena-orange);
}

.page-home .hero__metric-label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted-sage);
}

/* 记分牌窗口 */
.page-home .board {
  border: var(--hair);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-green-2), var(--panel-green));
  box-shadow: var(--shadow-panel), inset 0 0 0 1px rgba(243, 247, 240, .03);
  overflow: hidden;
}

.page-home .board__strip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: var(--hair);
  background: rgba(7, 26, 21, .55);
}

.page-home .board__strip-live {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--arena-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, .18);
  flex: none;
}

.page-home .board__strip-label {
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--muted-sage);
}

.page-home .board__strip-time {
  margin-left: auto;
  font-size: 11px;
  color: var(--score-lime);
  white-space: nowrap;
}

.page-home .board__body {
  display: grid;
  gap: 16px;
  padding: 18px 14px;
}

.page-home .board__score {
  display: grid;
  gap: 6px;
}

.page-home .board__score-num {
  font-size: clamp(46px, 12vw, 68px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--score-lime);
}

.page-home .board__score-num i {
  font-style: normal;
  color: var(--arena-orange);
  padding: 0 2px;
}

.page-home .board__score-label {
  font-size: 12px;
  color: var(--muted-sage);
}

.page-home .board__fields {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--line-green);
  border: var(--hair);
}

.page-home .board__field {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  background: var(--panel-green-2);
}

.page-home .board__field-label {
  font-size: 12px;
  color: var(--muted-sage);
}

.page-home .board__field-value {
  margin: 0;
  font-size: 13px;
  color: var(--paper);
  text-align: right;
}

.page-home .board__field-value .tag {
  margin-left: 4px;
}

.page-home .board__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 10px 12px;
  border-top: var(--hair);
  border-bottom: var(--hair);
  background: rgba(7, 26, 21, .45);
}

.page-home .board__tab {
  padding: 6px 10px;
  font-size: 12px;
  color: var(--muted-sage);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-home .board__tab:hover,
.page-home .board__tab:focus-visible {
  color: var(--paper);
  border-color: var(--line-green);
}

.page-home .board__tab--on {
  color: var(--pitch-ink);
  background: var(--score-lime);
  font-weight: 700;
}

.page-home .board__shot {
  margin: 0;
  border-top: var(--hair);
}

.page-home .board__shot img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

/* ---------- 切换三步 ---------- */
.page-home .steps {
  padding-top: clamp(38px, 7vw, 68px);
  padding-bottom: clamp(38px, 7vw, 68px);
}

.page-home .steps__head {
  margin-bottom: 24px;
}

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

.page-home .step {
  border: var(--hair);
  border-radius: var(--radius);
  background: var(--panel-green);
  box-shadow: var(--shadow-panel);
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

.page-home .step[open] {
  background: var(--panel-green-2);
  border-color: rgba(45, 226, 197, .45);
}

.page-home .step__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
}

.page-home .step__summary::-webkit-details-marker {
  display: none;
}

.page-home .step__index {
  flex: none;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--pitch-ink);
  background: var(--arena-orange);
  border-radius: 2px;
}

.page-home .step__title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-home .step__chev {
  flex: none;
  width: 9px;
  height: 9px;
  margin-left: auto;
  border-right: 2px solid var(--electric-teal);
  border-bottom: 2px solid var(--electric-teal);
  transform: rotate(45deg);
  transition: transform var(--fast) var(--ease);
}

.page-home .step[open] .step__chev {
  transform: rotate(225deg);
}

.page-home .step__body {
  margin: 0;
  padding: 0 14px 16px 56px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted-sage);
}

.page-home .steps__more {
  margin: 20px 0 0;
}

/* ---------- 四条主线 ---------- */
.page-home .tracks {
  padding-bottom: clamp(38px, 7vw, 68px);
}

.page-home .tracks__head {
  margin-bottom: 26px;
  padding-top: clamp(20px, 4vw, 34px);
  border-top: 1px solid var(--line-green);
}

.page-home .track-grid {
  display: grid;
  gap: 12px;
}

.page-home .track {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px 18px 18px;
  border: var(--hair);
  border-radius: var(--radius);
  background: var(--panel-green);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.page-home .track::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--arena-orange), transparent 70%);
  opacity: .85;
}

.page-home .track--b::before {
  background: linear-gradient(180deg, var(--electric-teal), transparent 70%);
}

.page-home .track--c::before {
  background: linear-gradient(180deg, var(--card-yellow), transparent 70%);
}

.page-home .track--d::before {
  background: linear-gradient(180deg, var(--score-lime), transparent 70%);
}

.page-home .track__num {
  display: block;
  font-size: clamp(30px, 7vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: rgba(243, 247, 240, .16);
}

.page-home .track__title {
  margin: 0;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home .track__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted-sage);
}

.page-home .track__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.page-home .track__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
}

.page-home .track__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--electric-teal);
  transform: rotate(45deg);
}

.page-home .track__media {
  margin: 0;
  border: var(--hair);
}

.page-home .track__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-home .track__link {
  margin-top: auto;
  padding-top: 4px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--electric-teal);
  text-decoration: none;
  transition: color var(--fast) var(--ease);
}

.page-home .track__link:hover,
.page-home .track__link:focus-visible {
  color: var(--score-lime);
}

/* ---------- 版本动态 ---------- */
.page-home .updates {
  padding-bottom: clamp(38px, 7vw, 68px);
}

.page-home .updates__grid {
  display: grid;
  gap: 24px;
  padding: clamp(20px, 4vw, 34px);
  border: var(--hair);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(21, 56, 47, .95), rgba(15, 42, 35, .95));
  box-shadow: var(--shadow-panel);
}

.page-home .updates__head .btn {
  margin-top: 20px;
}

.page-home .updates__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-green);
  border: var(--hair);
}

.page-home .update {
  padding: 16px 16px 18px;
  background: var(--panel-green);
}

.page-home .update__meta {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--arena-orange);
}

.page-home .update__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-home .update__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted-sage);
}

/* ---------- 多设备 ---------- */
.page-home .devices {
  padding-bottom: clamp(38px, 7vw, 68px);
}

.page-home .devices__panel {
  display: grid;
  gap: 20px;
  padding: clamp(18px, 4vw, 32px);
  border: var(--hair);
  border-radius: var(--radius);
  background: var(--panel-green-2);
  box-shadow: var(--shadow-panel);
}

.page-home .devices__list {
  display: grid;
  gap: 10px;
  margin: 20px 0 22px;
  padding: 0;
  list-style: none;
}

.page-home .devices__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper);
}

.page-home .devices__mark {
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 3px;
  border: 1px solid var(--score-lime);
  background: rgba(200, 255, 74, .18);
}

.page-home .devices__media {
  margin: 0;
  border: var(--hair);
  background: var(--panel-green);
}

.page-home .devices__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-home .devices__media figcaption {
  padding: 10px 12px;
  border-top: var(--hair);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted-sage);
}

/* ---------- 反馈通道 ---------- */
.page-home .feedback {
  padding-bottom: clamp(44px, 8vw, 80px);
}

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

.page-home .feedback__main {
  padding: clamp(18px, 4vw, 32px);
  border: var(--hair);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(255, 107, 44, .12), transparent 55%), var(--panel-green);
  box-shadow: var(--shadow-panel);
}

.page-home .feedback__list {
  display: grid;
  gap: 10px;
  margin: 18px 0 22px;
  padding: 0;
  list-style: none;
}

.page-home .feedback__list li {
  padding: 10px 12px;
  border-left: 2px solid var(--arena-orange);
  background: rgba(7, 26, 21, .38);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted-sage);
}

.page-home .feedback__list strong {
  color: var(--paper);
  font-weight: 700;
  margin-right: 8px;
}

.page-home .feedback__side {
  padding: 18px;
  border: var(--hair);
  border-radius: var(--radius);
  background: var(--panel-green-2);
}

.page-home .feedback__side-title {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: .1em;
  font-weight: 700;
  color: var(--score-lime);
}

.page-home .feedback__side-list {
  display: grid;
  gap: 1px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  background: var(--line-green);
  border: var(--hair);
}

.page-home .feedback__side-list li {
  background: var(--panel-green);
}

.page-home .feedback__side-list a {
  display: block;
  padding: 11px 12px;
  font-size: 13.5px;
  color: var(--paper);
  text-decoration: none;
  transition: background var(--fast) var(--ease), color var(--fast) var(--ease);
}

.page-home .feedback__side-list a:hover,
.page-home .feedback__side-list a:focus-visible {
  background: var(--panel-green-2);
  color: var(--electric-teal);
}

.page-home .feedback__side-note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted-sage);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .hero__metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 900px) {
  .page-home .steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .step__body {
    padding-left: 14px;
    padding-top: 0;
  }

  .page-home .devices__panel {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
  }

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

  .page-home .feedback__side {
    position: sticky;
    top: 24px;
  }
}

@media (min-width: 1000px) {
  .page-home .hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-home .hero__board {
    margin-top: 12px;
  }

  .page-home .track-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .track--a {
    grid-column: span 7;
  }

  .page-home .track--b {
    grid-column: span 5;
  }

  .page-home .track--c {
    grid-column: span 5;
  }

  .page-home .track--d {
    grid-column: span 7;
  }

  .page-home .updates__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .step__chev,
  .page-home .track__link,
  .page-home .text-link,
  .page-home .feedback__side-list a {
    transition: none;
  }
}
<<<END>>>