.page-home {
  --ph-border: 2px solid var(--ink);
  --ph-shadow: 6px 6px 0 var(--ink);
  --ph-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-home .hero {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2rem) 0 clamp(3rem, 7vw, 5.5rem);
  background: linear-gradient(180deg, var(--card) 0%, var(--paper) 62%);
  border-bottom: var(--ph-border);
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: .3;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
}

.page-home .hero__crumbs {
  position: relative;
  margin-bottom: 1.5rem;
}

.page-home .hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  align-items: stretch;
}

.page-home .hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--ink-2);
  margin: 0 0 1rem;
}

.page-home .hero__kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--cyan);
  border: 1px solid var(--ink);
}

.page-home .hero__title {
  font-family: var(--font-head);
  font-size: clamp(1.95rem, 6vw, 3.35rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ink);
  margin: 0 0 1.25rem;
}

.page-home .hero__title em {
  font-style: normal;
  display: inline-block;
  padding: 0 .16em .04em;
  background: var(--cyan);
  color: var(--console);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.page-home .hero__lead {
  font-size: clamp(.95rem, 1.6vw, 1.05rem);
  line-height: 1.85;
  color: var(--ink-2);
  max-width: 36em;
  margin: 0 0 1.75rem;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 2rem;
}

.page-home .hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .9rem 1.25rem;
  margin: 0;
  padding-top: 1.35rem;
  border-top: 1px dashed var(--line);
}

.page-home .hero__stat dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--ink-2);
  margin: 0;
}

.page-home .hero__stat dd {
  margin: .25rem 0 0;
  font-family: var(--font-head);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--ink);
}

.page-home .hero__stage {
  position: relative;
  margin: 0;
  border: var(--ph-border);
  border-radius: var(--ph-radius);
  box-shadow: var(--ph-shadow);
  background: var(--console);
  overflow: hidden;
  aspect-ratio: 6 / 7;
  min-height: 260px;
}

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

.page-home .hero__badge {
  position: absolute;
  top: .9rem;
  left: .9rem;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  background: var(--cyan);
  color: var(--console);
  border: 1px solid var(--console);
  padding: .34rem .6rem;
}

/* ---------- 索引区 ---------- */
.page-home .idxsec {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
  background: var(--paper);
  border-bottom: 1px dashed var(--line);
}

.page-home .idxsec__head {
  max-width: 46em;
  margin-bottom: 2.25rem;
}

.page-home .idxsec__shot {
  border: var(--ph-border);
  border-radius: var(--ph-radius);
  box-shadow: var(--ph-shadow);
  background: var(--card);
  overflow: hidden;
}

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

.page-home .idxsec__grid {
  list-style: none;
  padding: 0;
  margin: 2.5rem 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.page-home .idxsec__grid > .idx-card {
  border: var(--ph-border);
  border-radius: var(--ph-radius);
  box-shadow: 5px 5px 0 var(--ink);
  background: var(--card);
  transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease;
}

.page-home .idxsec__grid > .idx-card:hover {
  border-color: var(--cyan);
  box-shadow: 5px 5px 0 var(--cyan);
  transform: translate(-1px, -1px);
}

.page-home .idxsec__link {
  display: inline-block;
  margin-top: .75rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .04em;
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
  padding-bottom: 1px;
}

.page-home .idxsec__link:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ---------- 版本节奏区 ---------- */
.page-home .relsec {
  position: relative;
  padding: clamp(3rem, 7vw, 6rem) 0;
  overflow: hidden;
}

.page-home .relsec__head {
  max-width: 48em;
  margin-bottom: 2.25rem;
}

.page-home .relsec__shot {
  border: 2px solid rgba(0, 194, 209, .5);
  border-radius: var(--ph-radius);
  overflow: hidden;
  background: var(--console);
}

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

.page-home .relsec__line {
  list-style: none;
  margin: 2.75rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-home .relsec__node {
  position: relative;
  padding: 1.6rem 0 .4rem 1.9rem;
  border-left: 2px solid rgba(0, 194, 209, .32);
}

.page-home .relsec__node::before {
  content: "";
  position: absolute;
  top: 1.35rem;
  left: -7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px var(--console), 0 0 0 5px rgba(0, 194, 209, .32);
}

.page-home .relsec__node:nth-child(3)::before { background: var(--orange); box-shadow: 0 0 0 3px var(--console), 0 0 0 5px rgba(255, 107, 44, .32); }

.page-home .relsec__ver {
  display: block;
  font-family: var(--font-mono);
  font-size: .84rem;
  letter-spacing: .12em;
  color: var(--cyan);
  margin-bottom: .5rem;
}

.page-home .relsec__name {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 .45rem;
}

.page-home .relsec__desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(244, 239, 228, .76);
}

.page-home .relsec__more {
  margin: 2.5rem 0 0;
}

/* ---------- 下载 / 切换 ---------- */
.page-home .dlsec {
  padding: clamp(3rem, 7vw, 5rem) 0;
  background: var(--card);
  border-bottom: var(--ph-border);
}

.page-home .dlsec__head {
  max-width: 46em;
  margin-bottom: 2.25rem;
}

.page-home .dlsec__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-home .dlpanel {
  position: relative;
  border: var(--ph-border);
  border-radius: var(--ph-radius);
  background: var(--paper);
  padding: 1.6rem 1.4rem 1.7rem;
  box-shadow: var(--ph-shadow);
}

.page-home .dlpanel__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  padding: .26rem .55rem;
  margin-bottom: .95rem;
  background: var(--ink);
  color: var(--card);
}

.page-home .dlpanel--switch .dlpanel__tag {
  background: var(--orange);
  color: var(--console);
}

.page-home .dlpanel__title {
  font-family: var(--font-head);
  font-size: 1.28rem;
  font-weight: 700;
  margin: 0 0 .7rem;
  color: var(--ink);
}

.page-home .dlpanel__text {
  margin: 0 0 1rem;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-home .dlpanel__list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-home .dlpanel__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-home .dlpanel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  border: 1px solid var(--ink);
}

.page-home .dlpanel__switch[data-armed="true"] {
  background: var(--orange);
  color: var(--console);
  border-color: var(--ink);
}

.page-home .dlpanel__switch[data-armed="true"]::after {
  content: " · 再次点击确认";
  font-family: var(--font-mono);
  font-size: .82em;
}

/* ---------- 联系与指南 ---------- */
.page-home .ctcsec {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
  background: var(--paper);
}

.page-home .ctcsec__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  align-items: start;
}

.page-home .ctcsec__copy .section-lead {
  max-width: 40em;
}

.page-home .ctcsec__fields {
  display: grid;
  gap: .8rem;
  margin: 1.75rem 0 1.25rem;
}

.page-home .ctcsec__fields .copyfield {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem 1rem;
  text-align: left;
  font: inherit;
  color: var(--ink);
  background: var(--card);
  border: var(--ph-border);
  border-radius: var(--ph-radius);
  box-shadow: 4px 4px 0 var(--ink);
  padding: .9rem 1rem;
  cursor: pointer;
  transition: box-shadow .18s ease, border-color .18s ease;
}

.page-home .ctcsec__fields .copyfield:hover {
  border-color: var(--cyan);
  box-shadow: 4px 4px 0 var(--cyan);
}

.page-home .ctcsec__fields .copyfield[data-copied] {
  border-color: var(--green);
  box-shadow: 4px 4px 0 var(--green);
}

.page-home .ctcsec__tip {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--ink-2);
  padding-left: .9rem;
  border-left: 3px solid var(--violet);
}

.page-home .guidecard {
  border: 3px solid var(--cyan);
  border-radius: var(--ph-radius);
  background: var(--console);
  color: var(--card);
  padding: 1.35rem;
  box-shadow: 8px 8px 0 var(--cyan);
}

.page-home .guidecard__shot {
  border: 1px solid rgba(0, 194, 209, .45);
  overflow: hidden;
  margin-bottom: 1.1rem;
  background: var(--ink);
}

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

.page-home .guidecard__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  padding: .26rem .55rem;
  background: var(--cyan);
  color: var(--console);
  margin-bottom: .85rem;
}

.page-home .guidecard__title {
  font-family: var(--font-head);
  font-size: 1.24rem;
  font-weight: 700;
  margin: 0 0 .6rem;
  color: var(--card);
}

.page-home .guidecard__text {
  margin: 0 0 1.2rem;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(244, 239, 228, .82);
}

.page-home .guidecard__btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-home .idxsec__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-home .dlsec__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 800px) {
  .page-home .relsec__line {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 1.15rem;
  }
  .page-home .relsec__node {
    padding: 2.4rem 1rem 0 0;
    border-left: 0;
    border-top: 2px solid rgba(0, 194, 209, .38);
  }
  .page-home .relsec__node::before {
    top: -8px;
    left: 0;
  }
}

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: 1.02fr .98fr;
    gap: 3.25rem;
    align-items: center;
  }
  .page-home .hero__stage {
    aspect-ratio: 6 / 7;
    max-height: 600px;
  }
  .page-home .idxsec__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.4rem 1.25rem;
  }
  .page-home .idxsec__grid > .idx-card:nth-child(3n + 2) {
    margin-top: 1.75rem;
  }
  .page-home .idxsec__grid > .idx-card:nth-child(3n) {
    margin-top: .85rem;
  }
  .page-home .ctcsec__grid {
    grid-template-columns: 1.06fr .94fr;
    gap: 3rem;
  }
  .page-home .guidecard__btn {
    width: auto;
  }
}

@media (min-width: 1100px) {
  .page-home .hero__stage {
    aspect-ratio: 7 / 8;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .idxsec__grid > .idx-card,
  .page-home .dlpanel,
  .page-home .relsec__node,
  .page-home .guidecard {
    transition: none;
  }
  .page-home .idxsec__grid > .idx-card:hover {
    transform: none;
  }
}
</main>