.page-home {
  --home-gap: 18px;
  --home-radius: 2px;
  --home-scan: linear-gradient(90deg, transparent, rgba(57, 230, 216, .16), transparent);
}

.page-home .brandline {
  padding: 14px var(--gutter) 0;
  max-width: 1240px;
  margin: 0 auto;
}
.page-home .brandline__meta {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ---------- 首屏索引控制台 ---------- */
.page-home .console {
  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  padding: 28px var(--gutter) 56px;
  overflow: hidden;
}
.page-home .console::before {
  content: "";
  position: absolute;
  inset: -60px -20% auto auto;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle at 50% 50%, rgba(57, 230, 216, .16), transparent 68%);
  pointer-events: none;
}
.page-home .console::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(147, 167, 194, .05) 0 1px, transparent 1px 5px);
  pointer-events: none;
  mix-blend-mode: screen;
}
.page-home .console__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}
.page-home .breadcrumb ol {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .1em;
}
.page-home .breadcrumb li::after {
  content: "/";
  margin-left: 8px;
  color: var(--line);
}
.page-home .breadcrumb li:last-child::after { content: ""; }
.page-home .console__kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}
.page-home .console h1 {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(28px, 6vw, 54px);
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--paper);
  max-width: 18ch;
}
.page-home .console__lead {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.85;
  color: #C6D6EA;
}
.page-home .console__facts {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-home .console__facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0 12px 16px;
  border-left: 2px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}
.page-home .console__num {
  flex: none;
  min-width: 96px;
  font-size: 20px;
  color: var(--cyan);
  letter-spacing: .02em;
}
.page-home .console__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-home .console__visual {
  margin: 0;
  max-width: 460px;
  justify-self: start;
}
.page-home .console__visual .figure__cap {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

/* ---------- 章节公共 ---------- */
.page-home .section-head {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(22px, 4.4vw, 36px);
  line-height: 1.16;
  color: var(--paper);
  letter-spacing: -.005em;
}
.page-home .section-lead {
  margin: 0 0 26px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}
.page-home .panel {
  position: relative;
  max-width: 1240px;
  margin: 0 auto 0;
  padding: 46px var(--gutter) 52px;
}
.page-home .panel__coord {
  display: inline-block;
  margin-bottom: 16px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
  background: rgba(18, 41, 74, .5);
}
.page-home .panel__coord--orange { color: var(--orange); border-color: rgba(255, 122, 51, .45); }
.page-home .panel__coord--purple { color: var(--purple); border-color: rgba(169, 107, 255, .45); }
.page-home .panel__coord--amber { color: var(--amber); border-color: rgba(242, 193, 78, .45); }

.page-home .signal-rule {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 1px;
  position: relative;
  border-top: 1px dashed var(--line);
}
.page-home .signal-rule::before,
.page-home .signal-rule::after {
  content: "";
  position: absolute;
  top: -3px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: .7;
}
.page-home .signal-rule::before { left: var(--gutter); }
.page-home .signal-rule::after { right: var(--gutter); background: var(--orange); }
.page-home .signal-rule[data-label] {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--muted);
}
.page-home .signal-rule[data-label] {
  text-align: right;
}
.page-home .signal-rule[data-label]::first-line { text-align: right; }
.page-home .signal-rule[data-label] { height: 18px; border-top: 1px dashed var(--line); }
.page-home .signal-rule[data-label]::before { top: 12px; }
.page-home .signal-rule[data-label]::after { top: 12px; }
.page-home .signal-rule[data-label] {
  padding-top: 2px;
}
.page-home .signal-rule[data-label] {
  background-image: none;
}

/* ---------- 索引控制台 ---------- */
.page-home .index__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.page-home .index__filter .tag {
  cursor: pointer;
  background: rgba(18, 41, 74, .6);
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  padding: 7px 12px;
  border-radius: var(--home-radius);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.page-home .index__filter .tag:hover { color: var(--paper); border-color: var(--cyan); }
.page-home .index__filter .tag[aria-pressed="true"] {
  color: var(--abyss);
  background: var(--cyan);
  border-color: var(--cyan);
}
.page-home .index__filter .tag--orange[aria-pressed="true"] { background: var(--orange); border-color: var(--orange); }
.page-home .index__filter .tag--purple[aria-pressed="true"] { background: var(--purple); border-color: var(--purple); color: #12061f; }
.page-home .index__filter .tag--amber[aria-pressed="true"] { background: var(--amber); border-color: var(--amber); color: #22190a; }

.page-home .index__grid {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: 1fr;
}
.page-home .index__card {
  position: relative;
  display: block;
  padding: 20px 18px 18px;
  background: linear-gradient(160deg, rgba(18, 41, 74, .92), rgba(10, 23, 48, .92));
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--home-radius);
  text-decoration: none;
  color: inherit;
  transition: transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.page-home .index__card[data-cat="rule"] { border-left-color: var(--purple); }
.page-home .index__card[data-cat="client"] { border-left-color: var(--amber); }
.page-home .index__card[data-cat="support"] { border-left-color: var(--orange); }
.page-home .index__card:hover,
.page-home .index__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: linear-gradient(160deg, rgba(24, 52, 92, .95), rgba(12, 28, 56, .95));
}
.page-home .index__card[hidden] { display: none; }
.page-home .card__coord {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
  border: 1px solid rgba(57, 230, 216, .35);
  padding: 2px 7px;
}
.page-home .index__card h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: .01em;
}
.page-home .index__card .card__desc {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-home .index__card .card__meta {
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(147, 167, 194, .8);
}
.page-home .index__footnote {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  padding-left: 16px;
  border-left: 1px solid var(--line);
}
.page-home .index__footnote a { color: var(--cyan); text-decoration: none; border-bottom: 1px solid rgba(57, 230, 216, .4); }
.page-home .index__footnote a:hover { border-bottom-color: var(--cyan); }

/* ---------- 更新节奏 ---------- */
.page-home .cadence__layout {
  display: grid;
  gap: 26px;
  grid-template-columns: 1fr;
}
.page-home .cadence__figure { margin: 0; }
.page-home .cadence__figure .figure__cap,
.page-home .clients__figure .figure__cap,
.page-home .band__figure .figure__cap {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}
.page-home .cadence__text p {
  margin: 0 0 16px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: #C6D6EA;
}
.page-home .cadence__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

/* ---------- 双端 ---------- */
.page-home .clients__split {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: 1fr;
  margin-bottom: 28px;
}
.page-home .clients__lane {
  padding: 22px 20px;
  background: rgba(10, 23, 48, .8);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  border-radius: var(--home-radius);
}
.page-home .clients__lane--android { border-top-color: var(--amber); }
.page-home .clients__sys {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}
.page-home .clients__lane h3 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-size: 22px;
  font-weight: 800;
  color: var(--paper);
}
.page-home .clients__lane p {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}
.page-home .clients__figure { margin: 0; max-width: 720px; }

/* ---------- 三条路径 ---------- */
.page-home .routes__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-home .routes__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  padding: 22px 20px;
  background: linear-gradient(90deg, rgba(18, 41, 74, .7), rgba(10, 23, 48, .55));
  border: 1px solid var(--line);
  border-radius: var(--home-radius);
}
.page-home .routes__no {
  font-size: 26px;
  line-height: 1;
  color: var(--orange);
  letter-spacing: .04em;
  opacity: .85;
}
.page-home .routes__body h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}
.page-home .routes__body p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

/* ---------- 横向联系带 ---------- */
.page-home .band--contact {
  margin-top: 26px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(100deg, rgba(4, 7, 15, .96), rgba(10, 23, 48, .92)),
    var(--abyss);
  position: relative;
  overflow: hidden;
}
.page-home .band--contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--home-scan);
  transform: translateX(-100%);
  animation: home-scan 8s linear infinite;
  pointer-events: none;
}
@keyframes home-scan {
  to { transform: translateX(100%); }
}
.page-home .band__inner {
  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  padding: 44px var(--gutter) 48px;
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
}
.page-home .band__text h2 {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-size: clamp(22px, 4.4vw, 34px);
  font-weight: 800;
  color: var(--paper);
  line-height: 1.18;
}
.page-home .band__text p {
  margin: 0 0 18px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: #C6D6EA;
}
.page-home .band__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  color: var(--cyan);
  word-break: break-all;
}
.page-home .band__figure { margin: 0; max-width: 520px; }

/* ---------- 返回顶部 ---------- */
.page-home .to-top {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 30;
  padding: 9px 12px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
  background: rgba(4, 7, 15, .88);
  border: 1px solid var(--line);
  border-radius: var(--home-radius);
  cursor: pointer;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .index__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .cadence__layout { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); align-items: start; }
  .page-home .clients__split { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .console__facts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-home .console__facts li { flex-direction: column; gap: 6px; }
  .page-home .band__inner { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); align-items: center; }
}

@media (min-width: 1024px) {
  .page-home .console { padding-top: 40px; padding-bottom: 74px; }
  .page-home .console__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    align-items: end;
    gap: 48px;
  }
  .page-home .console__visual { max-width: none; }
  .page-home .console::before { inset: -120px -10% auto auto; }
  .page-home .index__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-home .panel { padding-left: var(--gutter); padding-right: var(--gutter); }
  .page-home .routes__list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-home .routes__item { grid-template-columns: 1fr; gap: 12px; }
  .page-home .cadence__layout { grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: 40px; }
}

@media (min-width: 1280px) {
  .page-home .index__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .console h1 { font-size: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .band--contact::before { animation: none; transform: none; opacity: .35; }
  .page-home .index__card,
  .page-home .index__filter .tag { transition: none; }
}
</main>