.page-home{
  --ph-gap: clamp(14px, 2.2vw, 24px);
  --ph-radius: 18px;
  padding-bottom: clamp(30px, 5vw, 60px);
}

.page-home h2{
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home h3{
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-home p{
  margin: 0;
}

/* ---------- 首屏拼贴 ---------- */
.page-home .ph-hero{
  position: relative;
  padding-top: clamp(16px, 2.6vw, 30px);
}

.page-home .ph-context{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(14px, 2.2vw, 24px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--paper-grey);
}

.page-home .ph-context__now{
  color: var(--cyan-mist);
}

.page-home .ph-hero__grid{
  display: grid;
  gap: var(--ph-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .ph-hero__copy{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--hair);
  border-radius: var(--ph-radius);
  background: linear-gradient(155deg, rgba(23,58,82,.92), rgba(6,19,31,.88));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-home .ph-hero__copy::before{
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--gold), var(--cyan));
}

.page-home .ph-hero__copy h1{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(29px, 6vw, 56px);
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--paper);
  text-wrap: balance;
}

.page-home .ph-hero__lead{
  max-width: 48ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--paper-grey);
}

.page-home .ph-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-home .ph-hero__media{
  position: relative;
  margin: 0;
  min-height: 180px;
  border: 1px solid var(--hair);
  border-radius: var(--ph-radius);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-home .ph-hero__media::after{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(6,19,31,.12), rgba(6,19,31,.62));
}

.page-home .ph-hero__stamp{
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 18px 20px;
  border: 1px solid var(--glass-line);
  border-radius: 16px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.page-home .ph-stamp__ver{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 4.4vw, 42px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-home .ph-stamp__note{
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper-grey);
}

/* ---------- 适配清单 ---------- */
.page-home .ph-adapt{
  margin-top: clamp(18px, 3vw, 32px);
  padding: clamp(18px, 2.8vw, 28px);
  border: 1px solid var(--hair);
  border-radius: var(--ph-radius);
  background: rgba(12,34,54,.62);
}

.page-home .ph-adapt__head{
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px 20px;
  margin-bottom: 16px;
}

.page-home .ph-adapt__head > div{
  display: grid;
  gap: 6px;
}

.page-home .ph-adapt__hint{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--paper-grey);
}

.page-home .ph-adapt__figure{
  margin: 0 0 16px;
  border: 1px solid var(--hair);
  border-radius: 14px;
  overflow: hidden;
}

.page-home .ph-adapt__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-home .ph-adapt__track{
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 2px 0 10px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(53,208,192,.5) transparent;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 12px, #000 calc(100% - 26px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 12px, #000 calc(100% - 26px), transparent 100%);
}

.page-home .ph-chip{
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--glass-line);
  border-radius: 999px;
  background: rgba(23,58,82,.55);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color .22s var(--ease), background-color .22s var(--ease), transform .22s var(--ease);
}

.page-home .ph-chip:hover,
.page-home .ph-chip:focus-visible{
  border-color: var(--cyan);
  background: rgba(53,208,192,.14);
  transform: translateY(-1px);
}

.page-home .ph-chip__num{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
}

/* ---------- 三条主线入口 ---------- */
.page-home .ph-entry{
  margin-top: clamp(34px, 5vw, 64px);
}

.page-home .ph-entry__head{
  display: grid;
  gap: 8px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-home .ph-entry__grid{
  display: grid;
  gap: var(--ph-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .ph-card{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--hair);
  border-radius: var(--ph-radius);
  background: linear-gradient(160deg, rgba(12,34,54,.94), rgba(6,19,31,.88));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-home .ph-card--a{
  border-color: rgba(243,182,75,.34);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(243,182,75,.16), transparent 60%),
    linear-gradient(160deg, rgba(12,34,54,.96), rgba(6,19,31,.9));
}

.page-home .ph-card p{
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-grey);
}

.page-home .ph-card__body{
  display: grid;
  gap: 10px;
}

.page-home .ph-card__points{
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .ph-card__points li{
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-grey);
}

.page-home .ph-card__points li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--cyan);
  opacity: .9;
}

.page-home .ph-card__media{
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: 12px;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

.page-home .ph-card__media img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-home .ph-card__foot{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: auto;
}

.page-home .ph-card__link{
  align-self: flex-start;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(155,232,223,.4);
  color: var(--cyan-mist);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-home .ph-card__link:hover,
.page-home .ph-card__link:focus-visible{
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-home .ph-card__start{
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--cyan);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity .24s var(--ease), transform .24s var(--ease);
}

.page-home .ph-card:hover .ph-card__start,
.page-home .ph-card:focus-within .ph-card__start{
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 编号步骤 ---------- */
.page-home .ph-steps{
  margin-top: clamp(34px, 5vw, 64px);
}

.page-home .ph-steps__layout{
  display: grid;
  gap: var(--ph-gap);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .ph-axis{
  padding: 14px;
  border: 1px solid var(--hair);
  border-radius: 16px;
  background: rgba(12,34,54,.55);
}

.page-home .ph-axis__list{
  display: flex;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .ph-axis__list::-webkit-scrollbar{
  display: none;
}

.page-home .ph-axis__link{
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 10px;
  color: var(--paper-grey);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.page-home .ph-axis__link:hover,
.page-home .ph-axis__link:focus-visible{
  background: rgba(53,208,192,.12);
  color: var(--paper);
}

.page-home .ph-axis__num{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-home .ph-axis__name{
  font-size: 13px;
  letter-spacing: .04em;
}

.page-home .ph-steps__head{
  display: grid;
  gap: var(--ph-gap);
  grid-template-columns: minmax(0, 1fr);
  margin-bottom: var(--ph-gap);
}

.page-home .ph-steps__intro{
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-home .ph-steps__intro p{
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-grey);
}

.page-home .ph-steps__figure{
  margin: 0;
  max-height: 260px;
  border: 1px solid var(--hair);
  border-radius: 14px;
  overflow: hidden;
}

.page-home .ph-steps__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 260px;
  object-fit: cover;
}

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

.page-home .ph-step{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  padding: 16px 18px;
  border-left: 2px solid rgba(53,208,192,.5);
  border-radius: 0 14px 14px 0;
  background: linear-gradient(90deg, rgba(23,58,82,.62), rgba(6,19,31,.34));
  scroll-margin-top: calc(var(--adapt-h) + 24px);
  transition: border-color .22s var(--ease), background .22s var(--ease);
}

.page-home .ph-step:hover,
.page-home .ph-step:focus-within{
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(23,58,82,.88), rgba(6,19,31,.46));
}

.page-home .ph-step:target{
  border-left-color: var(--gold);
  background: linear-gradient(90deg, rgba(243,182,75,.16), rgba(6,19,31,.42));
}

.page-home .ph-step__num{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: .02em;
  color: var(--cyan);
}

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

.page-home .ph-step__body h3{
  font-size: clamp(16px, 1.9vw, 19px);
}

.page-home .ph-step__body p{
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper-grey);
}

.page-home .ph-step__link{
  justify-self: start;
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(155,232,223,.35);
  color: var(--cyan-mist);
  font-size: 13px;
  text-decoration: none;
}

.page-home .ph-step__link:hover,
.page-home .ph-step__link:focus-visible{
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 场景索引 ---------- */
.page-home .ph-scenes{
  margin-top: clamp(34px, 5vw, 64px);
}

.page-home .ph-scenes__head{
  display: grid;
  gap: 8px;
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

.page-home .ph-scenes__head p{
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-grey);
}

.page-home .ph-scenes__grid{
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .ph-scene{
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--hair);
  border-radius: 14px;
  background: rgba(12,34,54,.58);
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-home .ph-scene:hover{
  border-color: rgba(53,208,192,.55);
  transform: translateY(-2px);
}

.page-home .ph-scene h3{
  font-size: 16px;
}

.page-home .ph-scene p{
  flex: 1;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-grey);
}

.page-home .ph-scene a{
  align-self: flex-start;
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(155,232,223,.35);
  color: var(--cyan-mist);
  font-size: 13px;
  text-decoration: none;
}

.page-home .ph-scene a:hover,
.page-home .ph-scene a:focus-visible{
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 版本状态 ---------- */
.page-home .ph-status{
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(34px, 5vw, 64px);
  padding: clamp(20px, 3vw, 36px);
  border: 1px solid rgba(243,182,75,.3);
  border-radius: var(--ph-radius);
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(243,182,75,.14), transparent 55%),
    linear-gradient(140deg, rgba(12,34,54,.96), rgba(6,19,31,.92));
}

.page-home .ph-status__main{
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-home .ph-status__main p{
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-grey);
}

.page-home .ph-status__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-home .ph-stats{
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}

.page-home .ph-stats > div{
  padding: 14px 16px;
  border: 1px solid var(--hair);
  border-radius: 12px;
  background: rgba(6,19,31,.55);
}

.page-home .ph-stats dt{
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--paper-grey);
}

.page-home .ph-stats dd{
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  color: var(--gold);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px){
  .page-home .ph-scenes__grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px){
  .page-home .ph-steps__head{
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: end;
  }
}

@media (min-width: 860px){
  .page-home .ph-entry__grid{
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-home .ph-card--a{
    grid-column: 1 / 8;
    grid-row: 1 / 3;
  }
  .page-home .ph-card--b{
    grid-column: 8 / 13;
    grid-row: 1 / 2;
  }
  .page-home .ph-card--c{
    grid-column: 8 / 13;
    grid-row: 2 / 3;
  }
}

@media (min-width: 900px){
  .page-home .ph-steps__layout{
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: start;
  }
  .page-home .ph-axis{
    position: sticky;
    top: calc(var(--adapt-h) + 28px);
  }
  .page-home .ph-axis__list{
    flex-direction: column;
    overflow: visible;
  }
  .page-home .ph-status{
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 960px){
  .page-home .ph-hero__grid{
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-areas:
      "copy copy copy copy copy copy copy media media media media media"
      "copy copy copy copy copy copy copy stamp stamp stamp stamp stamp";
  }
  .page-home .ph-hero__copy{
    grid-area: copy;
  }
  .page-home .ph-hero__media{
    grid-area: media;
  }
  .page-home .ph-hero__stamp{
    grid-area: stamp;
  }
}

@media (min-width: 1100px){
  .page-home .ph-scenes__grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (hover: none){
  .page-home .ph-card__start{
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-home .ph-chip,
  .page-home .ph-card,
  .page-home .ph-card__start,
  .page-home .ph-scene,
  .page-home .ph-step,
  .page-home .ph-axis__link{
    transition: none;
  }
  .page-home .ph-chip:hover,
  .page-home .ph-scene:hover{
    transform: none;
  }
}
<<<END>>>