.page-home {
  --home-gap: clamp(16px, 2.6vw, 26px);
  --home-block: clamp(56px, 9vw, 128px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 拼贴首屏 ---------- */
.page-home .hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
  padding-top: clamp(28px, 6vw, 72px);
  padding-bottom: var(--home-block);
}

.page-home .hero__title {
  margin: 0.35em 0 0.6em;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.012em;
  color: var(--ay-white);
  max-width: 18ch;
}

.page-home .hero__lead {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--ay-mute);
}

.page-home .hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .hero__facts li {
  font-size: 13px;
  color: var(--ay-mute);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-home .hero__facts .ay-mono {
  font-size: 19px;
  font-weight: 700;
  color: var(--ay-amber);
}

.page-home .hero__entries {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .hero__entry {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 148px;
  padding: 20px 18px;
  text-decoration: none;
  color: var(--ay-white);
  background: var(--ay-panel);
  border: 2px solid var(--ay-line);
  box-shadow: var(--ay-shadow);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.page-home .hero__entry:hover,
.page-home .hero__entry:focus-visible {
  border-color: var(--ay-cyan);
  transform: translateY(-2px);
  outline: none;
}

.page-home .hero__entry-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-home .hero__entry-desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ay-mute);
}

.page-home .hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--ay-line);
  box-shadow: var(--ay-shadow);
  background: var(--ay-panel);
  aspect-ratio: 16 / 10;
}

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

/* ---------- 参数速览仪表盘 ---------- */
.page-home .dash {
  position: relative;
  overflow: hidden;
  background: var(--ay-panel);
  border-top: 2px solid var(--ay-line);
  border-bottom: 2px solid var(--ay-line);
}

.page-home .dash__texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}

.page-home .dash__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  padding-top: clamp(40px, 7vw, 88px);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-home .dash__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-home .dash__head h2 {
  margin: 0.25em 0 0.5em;
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 900;
  line-height: 1.15;
  color: var(--ay-white);
}

.page-home .dash__head .ay-section__note {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ay-mute);
}

.page-home .dash__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}

.page-home .dash__stat {
  padding: 18px 16px;
  border: 2px solid var(--ay-line);
  background: rgba(5, 11, 26, 0.72);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-home .dash__num {
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  font-weight: 700;
  color: var(--ay-amber);
}

.page-home .dash__label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ay-mute);
}

/* 技术维度切换 */
.page-home .dim {
  position: relative;
}

.page-home .dim__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-home .dim__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--ay-line);
}

.page-home .dim__tab {
  padding: 8px 15px;
  font-family: var(--ay-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ay-mute);
  border: 2px solid var(--ay-line);
  background: transparent;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-home .dim__tab:hover {
  color: var(--ay-white);
  border-color: var(--ay-cyan);
}

.page-home #dim-electrical:checked ~ .dim__tabs .dim__tab[for="dim-electrical"],
.page-home #dim-structure:checked ~ .dim__tabs .dim__tab[for="dim-structure"],
.page-home #dim-interface:checked ~ .dim__tabs .dim__tab[for="dim-interface"],
.page-home #dim-env:checked ~ .dim__tabs .dim__tab[for="dim-env"],
.page-home #dim-power:checked ~ .dim__tabs .dim__tab[for="dim-power"],
.page-home #dim-compat:checked ~ .dim__tabs .dim__tab[for="dim-compat"] {
  color: var(--ay-void);
  background: var(--ay-cyan);
  border-color: var(--ay-cyan);
}

.page-home .dim__panels {
  padding-top: 22px;
  min-height: 108px;
}

.page-home .dim__panel {
  display: none;
}

.page-home .dim__panel p {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ay-white);
}

.page-home .dim__panel .dim__hint {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ay-mute);
}

.page-home #dim-electrical:checked ~ .dim__panels .dim__panel--electrical,
.page-home #dim-structure:checked ~ .dim__panels .dim__panel--structure,
.page-home #dim-interface:checked ~ .dim__panels .dim__panel--interface,
.page-home #dim-env:checked ~ .dim__panels .dim__panel--env,
.page-home #dim-power:checked ~ .dim__panels .dim__panel--power,
.page-home #dim-compat:checked ~ .dim__panels .dim__panel--compat {
  display: block;
}

.page-home .dim__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-home .dim__foot-note {
  font-size: 13px;
  color: var(--ay-mute);
}

/* ---------- 四类业务入口 ---------- */
.page-home .biz__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-home .biz__media {
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--ay-line);
  box-shadow: var(--ay-shadow);
  background: var(--ay-panel);
  aspect-ratio: 1 / 1;
}

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

.page-home .biz__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .biz__card {
  border: 2px solid var(--ay-line);
  background: var(--ay-panel);
  box-shadow: var(--ay-shadow);
  transition: border-color 0.18s ease;
}

.page-home .biz__card:hover,
.page-home .biz__card[open] {
  border-color: var(--ay-cyan);
}

.page-home .biz__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 18px;
  cursor: pointer;
  list-style: none;
}

.page-home .biz__summary::-webkit-details-marker {
  display: none;
}

.page-home .biz__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--ay-mono);
  font-size: 18px;
  color: var(--ay-amber);
}

.page-home .biz__card[open] .biz__summary::after {
  content: "−";
}

.page-home .biz__index {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ay-cyan);
  border: 1px solid var(--ay-line);
  padding: 2px 7px;
}

.page-home .biz__name {
  font-size: 17px;
  font-weight: 800;
  color: var(--ay-white);
}

.page-home .biz__body {
  padding: 0 18px 18px;
}

.page-home .biz__body p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ay-mute);
}

/* ---------- 服务响应与记录 ---------- */
.page-home .resp__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.page-home .resp__text h2 {
  margin: 0.25em 0 0.5em;
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 900;
  line-height: 1.15;
  color: var(--ay-white);
}

.page-home .resp__lead {
  margin: 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ay-mute);
}

.page-home .resp__steps {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-home .resp__steps li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 16px;
  border-left: 3px solid var(--ay-violet);
  background: rgba(122, 92, 255, 0.07);
}

.page-home .resp__step-num {
  font-size: 13px;
  color: var(--ay-cyan);
  font-weight: 700;
}

.page-home .resp__step-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ay-white);
}

.page-home .resp__note {
  margin: 20px 0 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ay-mute);
}

.page-home .resp__record {
  margin-top: 26px;
  padding: 20px;
  border-left: 4px solid var(--ay-amber);
  background: rgba(255, 180, 84, 0.06);
}

.page-home .resp__record-title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 800;
  color: var(--ay-amber);
}

.page-home .resp__record p {
  margin: 0 0 12px;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ay-white);
}

.page-home .resp__text .ay-btn {
  margin-top: 26px;
}

.page-home .resp__media {
  margin: 0;
  border: 2px solid var(--ay-line);
  box-shadow: var(--ay-shadow);
}

/* ---------- 合作路径 ---------- */
.page-home .coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-home .coop__item {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 20px;
  border: 2px solid var(--ay-line);
  background: var(--ay-panel);
  box-shadow: var(--ay-shadow);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.page-home .coop__item:hover {
  border-color: var(--ay-cyan);
  transform: translateY(-2px);
}

.page-home .coop__name {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--ay-white);
}

.page-home .coop__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ay-mute);
}

.page-home .coop__meta {
  margin-top: auto;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ay-cyan);
}

.page-home .coop__flow {
  margin-top: clamp(32px, 5vw, 56px);
  padding: clamp(24px, 4vw, 40px);
  border: 2px dashed var(--ay-line);
}

.page-home .coop__flow-title {
  margin: 0 0 20px;
  font-size: 18px;
  font-weight: 800;
  color: var(--ay-white);
}

.page-home .coop__flow-list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-home .coop__flow-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ay-mute);
}

.page-home .coop__flow-list .ay-mono {
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--ay-void);
  background: var(--ay-cyan);
}

/* ---------- 品牌底座带 ---------- */
.page-home .base {
  margin-top: clamp(48px, 8vw, 104px);
  padding-top: clamp(32px, 5vw, 56px);
  border-top: 2px solid var(--ay-line);
}

.page-home .base__pulse {
  display: block;
  width: 100%;
  height: 22px;
  margin-bottom: clamp(24px, 4vw, 40px);
  color: var(--ay-line);
}

.page-home .base__title {
  margin: 0 0 clamp(28px, 4vw, 44px);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--ay-white);
  max-width: 26ch;
}

.page-home .base__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
}

.page-home .base__block-title {
  margin: 0 0 12px;
  font-family: var(--ay-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--ay-cyan);
}

.page-home .base__block p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ay-mute);
}

.page-home .base__contact,
.page-home .base__links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-home .base__contact li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ay-white);
}

.page-home .base__contact .ay-mono {
  display: inline-block;
  min-width: 42px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ay-mute);
}

.page-home .base__contact-note {
  color: var(--ay-mute) !important;
  font-size: 13px !important;
}

.page-home .base__links li {
  font-size: 14px;
}

.page-home .base__icp {
  margin: 18px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ay-mute);
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-home .hero__entries {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .biz__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .coop__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .base__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-home .hero {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }

  .page-home .hero__brand {
    grid-column: 1 / 3;
    grid-row: 1 / 2;
    padding-right: clamp(24px, 4vw, 56px);
  }

  .page-home .hero__media {
    grid-column: 3 / 4;
    grid-row: 1 / 2;
    aspect-ratio: auto;
    min-height: 320px;
  }

  .page-home .hero__entries {
    margin-top: clamp(32px, 4vw, 52px);
  }

  .page-home .dash__top {
    grid-template-columns: minmax(260px, 1fr) minmax(340px, 1.15fr);
  }

  .page-home .biz__layout {
    grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.7fr);
    align-items: start;
  }

  .page-home .biz__media {
    aspect-ratio: auto;
    height: 100%;
    min-height: 320px;
    position: sticky;
    top: calc(var(--ay-nav-top) + var(--ay-nav-h) + 24px);
  }

  .page-home .resp__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .coop__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .coop__flow-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-home .coop__flow-list li {
    flex-direction: column;
    gap: 10px;
  }
}

@media (min-width: 1080px) {
  .page-home .base__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .hero__title {
    max-width: 15ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero__entry,
  .page-home .biz__card,
  .page-home .coop__item,
  .page-home .dim__tab {
    transition: none;
  }

  .page-home .hero__entry:hover,
  .page-home .hero__entry:focus-visible,
  .page-home .coop__item:hover {
    transform: none;
  }
}