.page-home{
  --ph-gap: clamp(18px, 3vw, 30px);
  --ph-line: rgba(244, 240, 230, 0.16);
  --ph-plate: rgba(14, 59, 46, 0.92);
  background: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-home .hero{
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border-bottom: 2px solid var(--line-strong);
}
.page-home .hero__bg{
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-home .hero__bg img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}
.page-home .hero__bg::after{
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(168deg, rgba(7, 28, 22, 0.76) 0%, rgba(7, 28, 22, 0.93) 48%, #071C16 100%),
    repeating-linear-gradient(90deg, rgba(184, 255, 63, 0.07) 0 1px, transparent 1px 96px);
}
.page-home .hero__ghost{
  position: absolute;
  top: 4%;
  right: -3%;
  z-index: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(160px, 32vw, 380px);
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 2px rgba(184, 255, 63, 0.16);
  pointer-events: none;
  user-select: none;
}
.page-home .hero__inner{
  position: relative;
  z-index: 1;
  padding-block: clamp(34px, 6vw, 68px) clamp(44px, 7vw, 86px);
}
.page-home .hero__title{
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 7.6vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.page-home .hero__lead{
  max-width: 56ch;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}
.page-home .hero__tags{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.page-home .hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-home .hero__cards{
  display: grid;
  gap: 14px;
  margin-top: clamp(30px, 5vw, 40px);
}
.page-home .hero-card{
  padding: 18px 20px 20px;
  background: var(--ph-plate);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.page-home .hero-card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
  border-color: var(--lime);
}
.page-home .hero-card__label{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
}
.page-home .hero-card__value{
  margin: 8px 0 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 46px);
  line-height: 1.05;
  color: var(--lime);
}
.page-home .hero-card__plus{
  font-size: 0.5em;
  vertical-align: super;
  color: var(--amber);
}
.page-home .hero-card--amber .hero-card__value{
  color: var(--amber);
}
.page-home .hero-card__note{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 横向主题带 ---------- */
.page-home .band{
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 18px var(--gutter) 20px;
  background: var(--moss);
  border-bottom: 2px solid var(--line-strong);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.page-home .band__item{
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  text-decoration: none;
  white-space: nowrap;
  background: var(--ink);
  border: 2px solid var(--line-strong);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.page-home .band__idx{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--steel);
}
.page-home .band__item:hover,
.page-home .band__item:focus-visible{
  background: var(--lime);
  color: var(--night);
  border-color: var(--lime);
}
.page-home .band__item:hover .band__idx,
.page-home .band__item:focus-visible .band__idx{
  color: rgba(4, 16, 13, 0.7);
}

/* ---------- 通用章节 ---------- */
.page-home .section{
  padding-block: clamp(44px, 7vw, 84px);
}
.page-home #start{
  background: var(--ink);
}
.page-home .section--library{
  background: var(--moss);
  border-block: 2px solid var(--line-strong);
}

/* ---------- 三步入口 ---------- */
.page-home .steps{
  display: grid;
  gap: var(--ph-gap);
  margin-top: clamp(26px, 4vw, 40px);
}
.page-home .step{
  position: relative;
  padding: 24px 22px 26px;
  background: var(--ph-plate);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.page-home .step::before{
  content: "";
  position: absolute;
  left: -2px;
  top: -2px;
  width: 46px;
  height: 4px;
  background: var(--lime);
}
.page-home .step:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
  border-color: var(--lime);
}
.page-home .step__idx{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lime);
}
.page-home .step__title{
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 24px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--fg);
}
.page-home .step__text{
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}
.page-home .step__link{
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 2px solid rgba(184, 255, 63, 0.4);
  padding-bottom: 2px;
}
.page-home .step__link:hover,
.page-home .step__link:focus-visible{
  border-bottom-color: var(--lime);
}

/* ---------- 资料库总览 ---------- */
.page-home .stats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin-top: clamp(24px, 4vw, 38px);
  background: var(--line-strong);
  border: 2px solid var(--line-strong);
}
.page-home .stat{
  padding: 20px 16px 22px;
  background: var(--ink);
}
.page-home .stat__num{
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 1;
  color: var(--lime);
}
.page-home .stat--amber .stat__num{
  color: var(--amber);
}
.page-home .stat__label{
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--steel);
}
.page-home .library__body{
  display: grid;
  gap: var(--ph-gap);
  margin-top: clamp(26px, 4vw, 42px);
}
.page-home .library__media{
  margin: 0;
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
}
.page-home .library__sub{
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--fg);
}
.page-home .library__text p{
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}
.page-home .library__text .btn{
  margin-top: 6px;
}

/* ---------- 轮次时间轴 ---------- */
.page-home .rounds{
  display: grid;
  gap: var(--ph-gap);
  margin-top: clamp(26px, 4vw, 40px);
}
.page-home .timeline{
  margin: 0;
  padding: 0 0 0 4px;
  list-style: none;
  border-left: 2px solid var(--line-strong);
}
.page-home .timeline__item{
  position: relative;
  padding: 0 0 26px 26px;
}
.page-home .timeline__item:last-child{
  padding-bottom: 0;
}
.page-home .timeline__item::before{
  content: "";
  position: absolute;
  left: -8px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--lime);
  border: 2px solid var(--ink);
}
.page-home .timeline__idx{
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--steel);
}
.page-home .timeline__title{
  margin: 6px 0 6px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
}
.page-home .timeline__text{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}
.page-home .rounds__aside{
  display: grid;
  gap: 16px;
}
.page-home .rounds__media{
  margin: 0;
  border: 2px solid var(--line-strong);
}
.page-home .rounds__card{
  padding: 20px;
  border-radius: 0;
}
.page-home .rounds__card-label{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}
.page-home .rounds__card-text{
  margin: 10px 0 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 通勤速览 ---------- */
.page-home .section--paper{
  background: var(--paper);
  color: var(--stone);
  border-block: 2px solid var(--stone);
}
.page-home .section--paper .eyebrow{
  color: #4A5A54;
}
.page-home .commute{
  display: grid;
  gap: var(--ph-gap);
}
.page-home .commute__media{
  margin: 0;
  border: 2px solid var(--stone);
  box-shadow: 6px 6px 0 rgba(38, 51, 48, 0.22);
}
.page-home .commute h2{
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 36px);
  line-height: 1.1;
  color: var(--stone);
}
.page-home .commute__lead{
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: #35443F;
}
.page-home .metrics{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.page-home .metric{
  padding: 14px 14px 16px;
  background: #FFFFFF;
  border: 2px solid var(--stone);
  box-shadow: 4px 4px 0 rgba(38, 51, 48, 0.16);
}
.page-home .metric__num{
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1;
  color: var(--moss);
}
.page-home .metric--clay .metric__num{
  color: var(--clay);
}
.page-home .metric__label{
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.5;
  color: #4A5A54;
}
.page-home .commute__note{
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: #35443F;
}
.page-home .commute__btn{
  background: var(--stone);
  color: var(--paper);
  border: 2px solid var(--stone);
}
.page-home .commute__btn:hover,
.page-home .commute__btn:focus-visible{
  background: var(--moss);
  border-color: var(--moss);
  color: var(--lime);
}

/* ---------- 反馈入口 ---------- */
.page-home .feedback{
  padding-block: clamp(36px, 6vw, 62px);
  background: var(--lime);
  color: var(--night);
  border-bottom: 2px solid var(--night);
}
.page-home .feedback__inner{
  display: grid;
  gap: 22px;
}
.page-home .feedback__title{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.12;
  color: var(--night);
}
.page-home .feedback__text{
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(4, 16, 13, 0.78);
}
.page-home .feedback__meta{
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: rgba(4, 16, 13, 0.72);
}
.page-home .feedback__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-home .feedback__btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  color: var(--lime);
  background: var(--night);
  border: 2px solid var(--night);
  box-shadow: 5px 5px 0 rgba(4, 16, 13, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.page-home .feedback__btn--ghost{
  color: var(--night);
  background: transparent;
  box-shadow: none;
  border-color: var(--night);
}
.page-home .feedback__btn:hover,
.page-home .feedback__btn:focus-visible{
  transform: translateY(-2px);
}
.page-home .feedback__btn:focus-visible{
  outline: 2px solid var(--night);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px){
  .page-home .stats{
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 820px){
  .page-home .steps{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .feedback__inner{
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
  .page-home .library__body{
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 900px){
  .page-home .hero__inner{
    display: grid;
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.82fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }
  .page-home .hero__cards{
    margin-top: 74px;
    gap: 16px;
  }
  .page-home .hero-card:nth-child(2){
    margin-left: 28px;
  }
  .page-home .hero-card:nth-child(3){
    margin-left: 12px;
  }
  .page-home .rounds{
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: start;
  }
  .page-home .commute{
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.08fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: center;
  }
  .page-home .library__body{
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: clamp(24px, 4vw, 44px);
  }
}

@media (prefers-reduced-motion: reduce){
  .page-home .hero-card,
  .page-home .step,
  .page-home .feedback__btn{
    transition: none;
  }
  .page-home .hero-card:hover,
  .page-home .step:hover,
  .page-home .feedback__btn:hover{
    transform: none;
  }
}