.page-home{
  --home-max: 1240px;
  --home-body: #C8D8E6;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-home *,
.page-home *::before,
.page-home *::after{ box-sizing: border-box; }

.page-home .home-inner{
  width: min(var(--home-max), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

.page-home section[id]{ scroll-margin-top: calc(var(--header-h) + 20px); }

.page-home .mono{ font-family: var(--font-mono); }

/* ---------- 首屏 ---------- */
.page-home .home-hero{
  position: relative;
  isolation: isolate;
  padding-block: clamp(26px, 5vw, 64px) clamp(40px, 7vw, 92px);
  overflow: hidden;
}
.page-home .home-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(30, 58, 82, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 58, 82, .5) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(130% 100% at 78% 0%, #000 18%, transparent 76%);
  mask-image: radial-gradient(130% 100% at 78% 0%, #000 18%, transparent 76%);
  pointer-events: none;
}
.page-home .home-hero::after{
  content: "";
  position: absolute;
  z-index: -1;
  top: -18%;
  right: -12%;
  width: min(620px, 78vw);
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(45, 226, 230, .16), transparent 62%);
  pointer-events: none;
}

.page-home .home-hero-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 44px);
  align-items: start;
}
.page-home .home-hero-main{ min-width: 0; }

.page-home .home-hero h1{
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -.03em;
  margin: .34em 0 .5em;
  color: var(--paper);
}
.page-home .hero-accent{
  color: var(--cyan);
  position: relative;
  white-space: nowrap;
}
.page-home .hero-accent::after{
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: .06em;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(45, 226, 230, 0));
}

.page-home .home-lede{
  margin: 0 0 clamp(22px, 3.5vw, 32px);
  max-width: 40em;
  color: var(--home-body);
  font-size: clamp(.95rem, 2.3vw, 1.06rem);
  line-height: 1.85;
}

/* 五入口索引 */
.page-home .home-index{
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-home .home-index li{ display: flex; min-width: 0; }
.page-home .home-index-link{
  --cut: 14px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  align-items: baseline;
  width: 100%;
  padding: 13px 16px;
  text-decoration: none;
  color: var(--paper);
  background: linear-gradient(135deg, rgba(10, 34, 56, .92), rgba(10, 34, 56, .48));
  border: 1px solid var(--line);
  border-left: 2px solid var(--grid);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: border-left-color .25s var(--ease), transform .25s var(--ease), background .25s var(--ease);
}
.page-home .home-index-link:hover,
.page-home .home-index-link:focus-visible{
  border-left-color: var(--cyan);
  background: linear-gradient(135deg, rgba(45, 226, 230, .16), rgba(10, 34, 56, .72));
  transform: translateX(3px);
}
.page-home .home-index-num{
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--cyan);
}
.page-home .home-index-name{
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .01em;
}
.page-home .home-index-desc{
  grid-column: 2;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-home .home-hint{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin: 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--mist);
}
.page-home .home-hint span{ max-width: 26em; }

.page-home .home-hero-aside{ position: relative; min-width: 0; }
.page-home .home-hero-figure{
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
  margin: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}
.page-home .home-hero-figure img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .home-aside-note{
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 0;
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-home .home-aside-note::before{
  content: "";
  width: 24px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 章节跳转带 ---------- */
.page-home .home-jump{
  border-block: 1px solid var(--line-soft);
  background: rgba(10, 34, 56, .42);
}
.page-home .home-jump-inner{
  display: flex;
  gap: 8px;
  padding-block: 12px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-home .home-jump-inner a{
  flex: 0 0 auto;
  padding: 7px 13px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.page-home .home-jump-inner a:hover,
.page-home .home-jump-inner a:focus-visible,
.page-home .home-jump-inner a[aria-current="true"]{
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 通用小节标题 ---------- */
.page-home .home-section-head{
  max-width: 48rem;
  margin-bottom: clamp(22px, 3.6vw, 36px);
}
.page-home .home-section-head h2{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -.02em;
  margin: .22em 0 .55em;
  color: var(--paper);
}
.page-home .home-section-head p{
  margin: 0;
  color: var(--mist);
  font-size: .95rem;
  line-height: 1.85;
}

/* ---------- 大屏信息带 ---------- */
.page-home .home-band{
  position: relative;
  padding-block: clamp(42px, 7vw, 84px);
  background: linear-gradient(180deg, rgba(6, 20, 35, 0), rgba(10, 34, 56, .55) 55%, rgba(6, 20, 35, 0));
}
.page-home .home-strip{
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(190px, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: thin;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}
.page-home .home-strip-cell{
  display: grid;
  gap: 7px;
  align-content: start;
  padding: 20px 18px 26px;
  background: linear-gradient(165deg, rgba(10, 34, 56, .95), rgba(6, 20, 35, .92));
}
.page-home .home-strip-cell strong{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-home .home-strip-cell span:last-child{
  font-size: .82rem;
  line-height: 1.65;
  color: var(--mist);
}
.page-home .home-strip-num{
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--cyan);
}
.page-home .home-strip-cell--pin{
  background: linear-gradient(165deg, rgba(45, 226, 230, .16), rgba(10, 34, 56, .95));
  box-shadow: inset 0 2px 0 var(--cyan);
}
.page-home .home-strip-cell--pin .home-strip-num{ color: var(--paper); }

.page-home .home-strip-foot{
  margin: 16px 0 0;
  font-size: .85rem;
  line-height: 1.75;
  color: var(--mist);
}
.page-home .home-strip-foot a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, .45);
}
.page-home .home-strip-foot a:hover,
.page-home .home-strip-foot a:focus-visible{ border-bottom-color: var(--cyan); }

/* ---------- 版本分流 ---------- */
.page-home .home-versions{
  padding-block: clamp(42px, 7vw, 86px);
}
.page-home .home-version-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}
.page-home .version-card{
  min-width: 0;
  padding: clamp(20px, 3.4vw, 34px);
  border: 1px solid var(--line);
  background: var(--panel-bg);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}
.page-home .version-card--new{
  border-top: 2px solid var(--cyan);
  background: linear-gradient(160deg, rgba(45, 226, 230, .10), rgba(10, 34, 56, .86) 42%, rgba(10, 34, 56, .7));
}
.page-home .version-card--old{
  border-top: 2px solid var(--orange);
  background: linear-gradient(160deg, rgba(255, 122, 61, .10), rgba(10, 34, 56, .82) 46%, rgba(6, 20, 35, .9));
}
.page-home .version-num{
  display: block;
  margin: 10px 0 14px;
  font-size: clamp(2.6rem, 9vw, 4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan);
}
.page-home .version-card--old .version-num{
  font-size: clamp(1.9rem, 6vw, 2.7rem);
  color: var(--orange);
}
.page-home .version-lead{
  margin: 0 0 16px;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--home-body);
}
.page-home .home-version-figure{
  margin: 0 0 18px;
  border: 1px solid var(--line-soft);
  background: var(--ink-3);
  overflow: hidden;
}
.page-home .home-version-figure img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .version-list{
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-home .version-list li{
  position: relative;
  padding-left: 20px;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--home-body);
}
.page-home .version-list li::before{
  content: "";
  position: absolute;
  left: 2px;
  top: .62em;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--cyan);
  border-right: 1px solid var(--cyan);
  transform: rotate(45deg);
}
.page-home .version-card--old .version-list li::before{
  border-color: var(--orange);
}

/* ---------- 上手理由 ---------- */
.page-home .home-why{
  padding-block: clamp(42px, 7vw, 86px);
  background: linear-gradient(180deg, rgba(10, 34, 56, .4), rgba(6, 20, 35, 0));
}
.page-home .home-why-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.page-home .why-card{
  padding: 4px 0 4px 18px;
  border-left: 2px solid var(--grid);
}
.page-home .why-card h3{
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.04rem;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-home .why-card p{
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-home .home-stats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 4.5vw, 46px);
  background: var(--line-soft);
  border: 1px solid var(--line);
}
.page-home .home-stat{
  padding: 18px 16px 20px;
  background: rgba(6, 20, 35, .92);
  min-width: 0;
}
.page-home .home-stat b{
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.45rem, 4.6vw, 2rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--cyan);
}
.page-home .home-stat span{
  display: block;
  margin-top: 6px;
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--mist);
}

/* ---------- 过渡带 ---------- */
.page-home .home-trail{
  position: relative;
  height: clamp(120px, 20vw, 200px);
  overflow: hidden;
  border-block: 1px solid var(--line-soft);
}
.page-home .home-trail img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: .9;
}
.page-home .home-trail-caption{
  position: absolute;
  left: var(--gutter);
  bottom: 16px;
  margin: 0;
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--paper);
  text-shadow: 0 1px 12px rgba(2, 10, 18, .9);
}

/* ---------- 服务清单与联系 ---------- */
.page-home .home-services{
  padding-block: clamp(42px, 7vw, 88px);
}
.page-home .home-service-figure{
  margin: 0 0 clamp(22px, 3.6vw, 34px);
  border: 1px solid var(--line-soft);
  overflow: hidden;
}
.page-home .home-service-figure img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .home-service-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-home .service-card{
  min-width: 0;
  padding: 18px 18px 22px;
  border: 1px solid var(--line);
  background: rgba(10, 34, 56, .55);
}
.page-home .service-card h3{
  margin: 12px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .98rem;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-home .service-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}
.page-home .service-list li{
  position: relative;
  padding-left: 14px;
  font-size: .85rem;
  line-height: 1.6;
  color: var(--home-body);
}
.page-home .service-list li::before{
  content: "·";
  position: absolute;
  left: 2px;
  top: 0;
  color: var(--cyan);
  font-weight: 700;
}

.page-home .home-steps{
  list-style: none;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.page-home .home-steps li{
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-top: 2px solid var(--cyan);
  background: rgba(10, 34, 56, .5);
  font-size: .9rem;
  color: var(--paper);
}
.page-home .step-num{
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-home .home-contact{
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(24px, 4vw, 40px);
  padding: clamp(20px, 3.6vw, 34px);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(45, 226, 230, .12), rgba(10, 34, 56, .88) 46%, rgba(6, 20, 35, .94));
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}
.page-home .home-contact h3{
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-home .home-contact-intro{
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--home-body);
}
.page-home .home-contact-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  align-content: start;
}
.page-home .home-contact-list li{
  display: grid;
  gap: 3px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}
.page-home .home-contact-list li:last-child{ border-bottom: 0; padding-bottom: 0; }
.page-home .home-contact-label{
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--mist);
}
.page-home .home-contact-value{
  font-size: .93rem;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px){
  .page-home .home-index{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .home-steps{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .home-service-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px){
  .page-home .home-hero-grid{
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 5vw, 72px);
  }
  .page-home .home-hero-aside{ margin-top: 26px; }
  .page-home .home-version-grid{
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .95fr);
    gap: 28px;
  }
  .page-home .version-card--old{ margin-top: 44px; }
  .page-home .home-why-grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }
  .page-home .home-stats{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .home-steps{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .home-contact{
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 36px;
  }
}

@media (min-width: 1100px){
  .page-home .home-service-grid{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .home-strip{ grid-auto-columns: minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce){
  .page-home .home-index-link,
  .page-home .home-jump-inner a{
    transition: none;
  }
  .page-home .home-index-link:hover,
  .page-home .home-index-link:focus-visible{ transform: none; }
}
<<<END>>>