.page-home {
  --home-hair: rgba(157, 178, 196, 0.28);
  --home-paper-hair: rgba(30, 23, 20, 0.14);
  --home-grid: rgba(56, 225, 214, 0.07);
}

/* ---------- 封面首屏 ---------- */
.page-home .cover {
  position: relative;
  overflow: hidden;
  background: var(--space);
  color: var(--paper);
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(2.75rem, 6vw, 5rem);
}

.page-home .cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, var(--home-grid) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(0deg, var(--home-grid) 0 1px, transparent 1px 84px);
  pointer-events: none;
}

.page-home .cover::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -30%;
  width: 46%;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(255, 90, 31, 0.22), transparent 68%);
  pointer-events: none;
}

.page-home .cover__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .cover__crumb {
  color: var(--mist);
  font-size: var(--fs-note);
}

.page-home .cover__eyebrow {
  color: var(--cyan);
  margin-bottom: 0.6rem;
}

.page-home .cover__title {
  margin: 0 0 1rem;
  font-size: var(--fs-h1);
  line-height: 0.94;
  letter-spacing: -0.035em;
  font-weight: 900;
  color: var(--paper);
}

.page-home .cover__lede {
  max-width: 34em;
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--mist);
}

.page-home .cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-home .cover__aside {
  display: grid;
  gap: 1.1rem;
}

.page-home .cover__media {
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
  background: var(--night);
}

.page-home .cover__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .cover__index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--home-hair);
}

.page-home .cover__index li {
  border-bottom: 1px solid var(--home-hair);
}

.page-home .cover__index a {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 0.7rem 0.25rem;
  color: var(--cyan-white);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

.page-home .cover__index a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width 0.3s ease;
}

.page-home .cover__index a:hover,
.page-home .cover__index a:focus-visible {
  color: var(--orange);
}

.page-home .cover__index a:hover::after,
.page-home .cover__index a:focus-visible::after {
  width: 100%;
}

.page-home .cover__indexno {
  font-family: var(--font-num);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  min-width: 2rem;
  transition: color 0.2s ease;
}

.page-home .cover__index a:hover .cover__indexno {
  color: var(--orange);
}

.page-home .cover__indexlabel {
  flex: 1 1 auto;
}

/* ---------- 赛事导航 ---------- */
.page-home .nav-index {
  background: var(--paper);
  color: var(--ink);
}

.page-home .nav-index__headmain,
.page-home .duo__headmain,
.page-home .steps__headmain {
  min-width: 0;
}

.page-home .nav-index__note,
.page-home .duo__note,
.page-home .steps__note {
  color: var(--ink-mute);
}

.page-home .nav-index__body {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-home .nav-cats {
  display: grid;
  border-top: 1px solid var(--home-paper-hair);
}

.page-home .nav-cat {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.55rem;
  padding: 1.1rem 0.15rem 1.25rem;
  border-bottom: 1px solid var(--home-paper-hair);
}

.page-home .nav-cat__meta {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.page-home .nav-cat__no {
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-home .nav-cat__heat {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: var(--amber);
  color: var(--ink);
}

.page-home .nav-cat__name {
  margin: 0;
  font-size: var(--fs-h3);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .nav-cat__desc {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-mute);
}

.page-home .taglist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  margin: 0.1rem 0 0;
  padding: 0;
}

.page-home .taglist a {
  display: inline-block;
  padding: 0.24rem 0.62rem;
  border: 1px solid var(--home-paper-hair);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--ink-soft);
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.page-home .taglist a:hover,
.page-home .taglist a:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 90, 31, 0.1);
  color: var(--ink);
}

.page-home .nav-index__aside {
  display: grid;
  gap: 0.9rem;
  align-content: start;
  padding: clamp(0.9rem, 2vw, 1.2rem);
  background: var(--paper-2);
  border-left: 3px solid var(--cyan);
}

.page-home .nav-index__media {
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 88%);
  background: var(--space);
}

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

.page-home .nav-index__caption {
  margin: 0;
  font-size: var(--fs-note);
  line-height: 1.75;
  color: var(--ink-mute);
}

.page-home .nav-index__link {
  justify-self: start;
}

/* ---------- 换设备续接 ---------- */
.page-home .device-strip {
  background: var(--space);
  color: var(--paper);
  padding-block: clamp(2rem, 4.5vw, 3.25rem);
  border-top: 1px solid rgba(56, 225, 214, 0.24);
  border-bottom: 1px solid rgba(56, 225, 214, 0.24);
}

.page-home .device-strip__grid {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.25rem);
}

.page-home .device-strip__title {
  margin: 0 0 0.75rem;
  font-size: var(--fs-h2);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .device-strip__text {
  margin: 0 0 1.3rem;
  max-width: 36em;
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--mist);
}

.page-home .device-strip__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .device-strip__stats li {
  padding-left: 0.7rem;
  border-left: 2px solid var(--cyan);
}

.page-home .stat-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.8rem, 4.5vw, 2.7rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-home .stat-label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.76rem;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 双栏内容服务 ---------- */
.page-home .duo {
  background: var(--paper);
  color: var(--ink);
}

.page-home .duo__body {
  display: grid;
  gap: 0.85rem;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  padding: clamp(0.8rem, 2vw, 1.4rem);
  background: var(--space);
}

.page-home .duo__media {
  overflow: hidden;
  background: var(--night);
}

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

.page-home .duo__col {
  padding: clamp(1.1rem, 2.5vw, 1.7rem);
  background: var(--paper-2);
  color: var(--ink);
}

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

.page-home .duo__coltitle {
  margin: 0.5rem 0 0.7rem;
  font-size: var(--fs-h3);
  letter-spacing: -0.01em;
}

.page-home .duo__text {
  margin: 0 0 0.9rem;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-home .duo__list {
  list-style: none;
  margin: 0 0 1.1rem;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.page-home .duo__list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--ink-mute);
}

.page-home .duo__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.45rem;
  height: 0.45rem;
  background: var(--orange);
}

.page-home .duo__link {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  padding-bottom: 0.15rem;
}

.page-home .duo__link:hover,
.page-home .duo__link:focus-visible {
  color: var(--brick);
}

/* ---------- 安装对照摘要 ---------- */
.page-home .steps {
  background: var(--space);
  color: var(--paper);
}

.page-home .steps__head .eyebrow {
  color: var(--amber);
}

.page-home .steps__note {
  color: var(--mist);
}

.page-home .steps__body {
  display: grid;
  gap: clamp(1.3rem, 3vw, 2.25rem);
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-home .steps__media {
  overflow: hidden;
  background: var(--night);
  clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
}

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

.page-home .steps__list {
  display: grid;
  align-content: start;
}

.page-home .step {
  border-top: 1px solid rgba(56, 225, 214, 0.26);
  padding: 0.5rem 0;
}

.page-home .step:last-of-type {
  border-bottom: 1px solid rgba(56, 225, 214, 0.26);
}

.page-home .step__summary {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 0.55rem 0;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  transition: color 0.2s ease;
}

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

.page-home .step__summary:hover,
.page-home .step__summary:focus-visible {
  color: var(--cyan);
}

.page-home .step__num {
  font-family: var(--font-num);
  font-size: clamp(1.6rem, 3.2vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  min-width: 2.4rem;
}

.page-home .step__title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-home .step[open] .step__num {
  color: var(--orange);
}

.page-home .step__body {
  margin: 0 0 0.85rem;
  padding-left: calc(2.4rem + 0.9rem);
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .steps__cta {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.4rem;
  padding: 1.1rem;
  background: var(--night);
  border-left: 3px solid var(--orange);
}

.page-home .steps__ctatext {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-home .steps__cta .btn {
  justify-self: start;
}

/* ---------- 收束区 ---------- */
.page-home .closing {
  background: var(--night);
  color: var(--paper);
  padding-block: clamp(2.25rem, 5vw, 3.5rem);
  border-top: 1px solid rgba(255, 194, 75, 0.3);
}

.page-home .closing__grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-home .closing .eyebrow {
  color: var(--cyan);
}

.page-home .closing__title {
  margin: 0 0 0.8rem;
  font-size: var(--fs-h2);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .closing__text {
  margin: 0;
  max-width: 38em;
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--mist);
}

.page-home .closing__links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(157, 178, 196, 0.3);
}

.page-home .closing__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.8rem 0.2rem;
  border-bottom: 1px solid rgba(157, 178, 196, 0.3);
  color: var(--cyan-white);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s ease, padding-left 0.25s ease;
}

.page-home .closing__links a::after {
  content: "→";
  color: var(--orange);
  font-family: var(--font-num);
}

.page-home .closing__links a:hover,
.page-home .closing__links a:focus-visible {
  color: var(--amber);
  padding-left: 0.6rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .nav-cat {
    grid-template-columns: 5.5rem 8.5rem minmax(0, 1fr);
    align-items: start;
    gap: 0.75rem 1.1rem;
    padding: 1.2rem 0.2rem;
  }

  .page-home .nav-cat__name {
    font-size: 1.2rem;
    padding-top: 0.15rem;
  }

  .page-home .nav-cat__desc {
    grid-column: 3 / 4;
  }

  .page-home .closing__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 1.5rem;
  }
}

@media (min-width: 880px) {
  .page-home .cover__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: clamp(1.5rem, 4vw, 3.5rem);
    align-items: start;
  }

  .page-home .cover__crumb {
    grid-column: 1 / -1;
  }

  .page-home .cover__title {
    margin-top: 0.35rem;
  }

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

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

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

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

  .page-home .duo__media {
    grid-column: 1 / -1;
    margin-bottom: 0.85rem;
  }

  .page-home .duo__col--report {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 2.4rem), 0 100%);
    padding-bottom: calc(2.4rem + 1.6rem);
  }

  .page-home .duo__col--lineup {
    clip-path: polygon(0 2.4rem, 100% 0, 100% 100%, 0 100%);
    padding-top: calc(2.4rem + 1.5rem);
  }

  .page-home .steps__body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    column-gap: clamp(1.5rem, 3.5vw, 2.75rem);
  }
}

@media (min-width: 1080px) {
  .page-home .cover__aside {
    padding-top: 1.4rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-home .cover__index a,
  .page-home .cover__index a::after,
  .page-home .cover__indexno,
  .page-home .taglist a,
  .page-home .step__summary,
  .page-home .closing__links a {
    transition: none;
  }
}
<<<END>>>