/* ===== 首页专属样式 · 作用域限定在 .page-home ===== */

.page-home {
  --ph-rule: 1px solid var(--sm-line);
  --ph-bleed: clamp(2.25rem, 6vw, 5rem);
  --ph-hero-title: clamp(2.2rem, 5.4vw, 3.9rem);
  --ph-anchor-num: clamp(3.6rem, 13vw, 9.5rem);
}

/* ---------- 首屏 ---------- */

.page-home .ph-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2rem, 5vw, 3.25rem) clamp(3rem, 7vw, 5.5rem);
  background:
    radial-gradient(115% 78% at 82% 2%, rgba(58, 30, 92, 0.58) 0%, rgba(11, 10, 18, 0) 62%),
    radial-gradient(70% 50% at 6% 100%, rgba(224, 167, 60, 0.07) 0%, rgba(11, 10, 18, 0) 70%),
    var(--sm-ink);
}

.page-home .ph-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3.75rem);
  align-items: start;
}

.page-home .ph-hero__copy {
  min-width: 0;
}

.page-home .ph-hero__title {
  margin: 1rem 0 1.35rem;
  font-family: var(--sm-font-display);
  font-weight: 900;
  font-size: var(--ph-hero-title);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--sm-bright);
}

.page-home .ph-hero__lede {
  margin: 0 0 2.25rem;
  max-width: 46ch;
}

.page-home .ph-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: var(--ph-rule);
}

.page-home .ph-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.85rem 0;
  border-bottom: var(--ph-rule);
}

.page-home .ph-hero__fact-num {
  font-size: 1.35rem;
  min-width: 4.5ch;
}

.page-home .ph-hero__fact-key {
  color: var(--sm-body);
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
}

/* 锚点区：巨型版本号 + 刻度 */

.page-home .ph-hero__anchor {
  position: relative;
  min-width: 0;
}

.page-home .ph-hero__media {
  display: none;
  margin: 0;
}

.page-home .ph-hero__anchor-body {
  position: relative;
  z-index: 1;
  padding: clamp(1.25rem, 3.5vw, 2rem) 0 clamp(1.25rem, 3.5vw, 2rem) clamp(1.25rem, 3.5vw, 2rem);
  border-left: var(--ph-rule);
}

.page-home .ph-hero__anchor-key {
  margin: 0;
  font-family: var(--sm-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sm-gold);
}

.page-home .ph-hero__anchor-num {
  margin: 0.35rem 0 0.65rem;
  font-size: var(--ph-anchor-num);
  line-height: 0.86;
  color: var(--sm-gold);
  letter-spacing: -0.045em;
  text-shadow: 0 0 46px rgba(224, 167, 60, 0.22);
}

.page-home .ph-hero__anchor-pulse {
  display: flex;
  align-items: center;
  margin: 0 0 1.5rem;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--sm-status);
}

.page-home .ph-pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: var(--sm-status);
  box-shadow: 0 0 0 4px rgba(53, 224, 214, 0.14);
  flex: none;
}

.page-home .ph-hero__ticks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--ph-rule);
}

.page-home .ph-tick {
  position: relative;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  grid-template-areas:
    "bar v"
    "bar m";
  align-items: center;
  column-gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: var(--ph-rule);
  transition: background-color 180ms ease;
}

.page-home .ph-tick__bar {
  grid-area: bar;
  align-self: stretch;
  width: 2px;
  margin-left: 9px;
  background: var(--sm-line);
  transition: background-color 180ms ease, width 180ms ease;
}

.page-home .ph-tick__v {
  grid-area: v;
  font-family: var(--sm-font-mono);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--sm-bright);
  letter-spacing: 0.02em;
}

.page-home .ph-tick__m {
  grid-area: m;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--sm-body);
}

.page-home .ph-tick.is-current .ph-tick__bar {
  background: var(--sm-gold);
  width: 3px;
  margin-left: 8px;
}

.page-home .ph-tick.is-current .ph-tick__v {
  color: var(--sm-gold-lift);
}

.page-home .ph-tick:hover .ph-tick__bar,
.page-home .ph-tick:focus-within .ph-tick__bar {
  background: var(--sm-gold-lift);
}

.page-home .ph-tick:hover .ph-tick__m,
.page-home .ph-tick:focus-within .ph-tick__m {
  color: var(--sm-bright);
}

.page-home .ph-hero__anchor-foot {
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--sm-blue);
}

/* ---------- 三档安装包 ---------- */

.page-home .ph-pack__figure {
  margin: 0 0 clamp(1.75rem, 4vw, 2.75rem);
}

.page-home .ph-pack__tabs {
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
}

.page-home .ph-pack__panel {
  padding-top: 0.5rem;
}

.page-home .ph-pack__lead {
  margin: 0 0 1.25rem;
  max-width: 56ch;
  color: var(--sm-bright);
  font-size: 1.0625rem;
  line-height: 1.7;
}

.page-home .ph-pack__specs {
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: var(--ph-rule);
}

.page-home .ph-pack__specs > div {
  display: grid;
  grid-template-columns: minmax(0, 7rem) minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.75rem 0;
  border-bottom: var(--ph-rule);
}

.page-home .ph-pack__specs dt {
  margin: 0;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--sm-blue);
}

.page-home .ph-pack__specs dd {
  margin: 0;
  color: var(--sm-body);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.page-home .ph-pack__arch {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding-top: 1.25rem;
  border-top: var(--ph-rule);
  max-width: 62ch;
  color: var(--sm-body);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ---------- 四类设备选型 ---------- */

.page-home .ph-pick__figure {
  margin: 0 0 clamp(1.75rem, 4vw, 2.75rem);
}

.page-home .ph-pick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: var(--ph-rule);
}

.page-home .ph-pick__item {
  position: relative;
  padding: 1.5rem 0 1.5rem 0;
  border-bottom: var(--ph-rule);
}

.page-home .ph-pick__ord {
  margin: 0 0 0.5rem;
  font-family: var(--sm-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--sm-paper);
  background: rgba(237, 227, 210, 0.08);
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border: 1px solid rgba(237, 227, 210, 0.2);
}

.page-home .ph-pick__name {
  margin: 0 0 0.6rem;
  font-family: var(--sm-font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.01em;
  color: var(--sm-bright);
}

.page-home .ph-pick__rec {
  margin: 0 0 0.4rem;
  font-size: 0.9375rem;
  color: var(--sm-gold-lift);
}

.page-home .ph-pick__meta {
  margin: 0 0 0.75rem;
  font-family: var(--sm-font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
  color: var(--sm-status);
}

.page-home .ph-pick__scene {
  margin: 0;
  max-width: 40ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--sm-body);
}

.page-home .ph-pick__more {
  margin: clamp(1.5rem, 3.5vw, 2.25rem) 0 0;
}

/* ---------- 交付与保修 ---------- */

.page-home .ph-deliver__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .ph-deliver__block {
  min-width: 0;
}

.page-home .ph-deliver__steps {
  list-style: none;
  margin: 1.25rem 0 1rem;
  padding: 0;
  counter-reset: ph-step;
  border-top: var(--ph-rule);
}

.page-home .ph-deliver__step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.25rem;
  padding: 0.85rem 0;
  border-bottom: var(--ph-rule);
}

.page-home .ph-deliver__days {
  font-family: var(--sm-font-mono);
  font-size: 1rem;
  color: var(--sm-gold);
  letter-spacing: 0.02em;
}

.page-home .ph-deliver__what {
  font-size: 0.9375rem;
  color: var(--sm-body);
}

.page-home .ph-deliver__warranty {
  list-style: none;
  margin: 1.25rem 0 1rem;
  padding: 0;
  border-top: var(--ph-rule);
}

.page-home .ph-deliver__warranty-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: var(--ph-rule);
}

.page-home .ph-deliver__type {
  font-size: 0.9375rem;
  color: var(--sm-body);
}

.page-home .ph-deliver__months {
  font-family: var(--sm-font-mono);
  font-size: 1rem;
  color: var(--sm-gold);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.page-home .ph-deliver__note {
  margin: 0;
  max-width: 52ch;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--sm-blue);
}

/* ---------- 售后响应 ---------- */

.page-home .ph-resp__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--ph-rule);
}

.page-home .ph-resp__row {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.35rem 0;
  border-bottom: var(--ph-rule);
}

.page-home .ph-resp__idx {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--sm-line);
  font-family: var(--sm-font-mono);
  font-size: 0.8125rem;
  color: var(--sm-blue);
  letter-spacing: 0.06em;
}

.page-home .ph-resp__row--alert .ph-resp__idx {
  border-color: rgba(255, 107, 87, 0.55);
  color: var(--sm-alert);
}

.page-home .ph-resp__body {
  min-width: 0;
}

.page-home .ph-resp__name {
  margin: 0 0 0.35rem;
  font-family: var(--sm-font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--sm-bright);
  letter-spacing: 0.01em;
}

.page-home .ph-resp__time {
  margin: 0 0 0.5rem;
  font-family: var(--sm-font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.03em;
  color: var(--sm-gold);
}

.page-home .ph-resp__row--alert .ph-resp__time {
  color: var(--sm-alert);
}

.page-home .ph-resp__desc {
  margin: 0;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--sm-body);
}

.page-home .ph-resp__callout {
  margin-top: clamp(1.5rem, 3.5vw, 2.25rem);
}

/* ---------- 培训与更新 ---------- */

.page-home .ph-train__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 2.75rem);
  align-items: start;
}

.page-home .ph-train__levels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: var(--ph-rule);
}

.page-home .ph-train__level {
  padding: 1.15rem 0;
  border-bottom: var(--ph-rule);
}

.page-home .ph-train__lv {
  margin: 0 0 0.4rem;
  font-family: var(--sm-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--sm-blue);
}

.page-home .ph-train__count {
  margin: 0 0 0.5rem;
  font-family: var(--sm-font-mono);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--sm-gold);
  letter-spacing: 0.01em;
}

.page-home .ph-train__unit {
  margin-left: 0.3rem;
  font-size: 0.875rem;
  color: var(--sm-body);
  letter-spacing: 0.06em;
}

.page-home .ph-train__scene {
  margin: 0;
  max-width: 42ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--sm-body);
}

.page-home .ph-train__media {
  margin: 0;
}

.page-home .ph-train__more {
  margin: clamp(1.5rem, 3.5vw, 2.25rem) 0 0;
}

/* ---------- 收尾索引 ---------- */

.page-home .ph-tail__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}

.page-home .ph-tail__copy {
  min-width: 0;
}

.page-home .ph-tail__copy .sm-label {
  margin-bottom: 0.85rem;
}

.page-home .ph-tail__copy p {
  margin: 1rem 0 0;
}

.page-home .ph-tail__links {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--ph-rule);
}

.page-home .ph-tail__link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 1rem;
  padding: 0.95rem 0;
  border-bottom: var(--ph-rule);
  text-decoration: none;
  transition: background-color 160ms ease;
}

.page-home .ph-tail__link-t {
  font-family: var(--sm-font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--sm-bright);
  letter-spacing: 0.02em;
  border-bottom: 2px solid transparent;
  transition: border-color 160ms ease, color 160ms ease;
}

.page-home .ph-tail__link-d {
  font-size: 0.8125rem;
  color: var(--sm-blue);
}

.page-home .ph-tail__link:hover .ph-tail__link-t,
.page-home .ph-tail__link:focus-visible .ph-tail__link-t {
  color: var(--sm-gold-lift);
  border-bottom-color: var(--sm-gold);
}

/* ---------- 断点 640px ---------- */

@media (min-width: 640px) {
  .page-home .ph-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: var(--ph-rule);
  }

  .page-home .ph-hero__facts li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding: 1rem 1rem 1rem 0;
    border-bottom: none;
    border-right: var(--ph-rule);
  }

  .page-home .ph-hero__facts li:last-child {
    border-right: none;
    padding-right: 0;
  }

  .page-home .ph-pack__specs > div {
    grid-template-columns: minmax(0, 9rem) minmax(0, 1fr);
  }

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

  .page-home .ph-pick__item {
    padding: 1.65rem 1.5rem 1.65rem 0;
    border-right: var(--ph-rule);
  }

  .page-home .ph-pick__item:nth-child(2n) {
    padding-right: 0;
    padding-left: 1.5rem;
    border-right: none;
  }

  .page-home .ph-deliver__step {
    grid-template-columns: minmax(0, 9rem) minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }

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

  .page-home .ph-train__level {
    padding: 1.25rem 1.25rem 1.25rem 0;
    border-bottom: none;
    border-right: var(--ph-rule);
  }

  .page-home .ph-train__level:last-child {
    padding-right: 0;
    border-right: none;
  }
}

/* ---------- 断点 960px ---------- */

@media (min-width: 960px) {
  .page-home .ph-hero {
    padding-block: clamp(2.5rem, 4vw, 4rem) clamp(4rem, 7vw, 6.5rem);
  }

  .page-home .ph-hero__grid {
    grid-template-columns: minmax(0, 6.4fr) minmax(0, 5.6fr);
    gap: clamp(2rem, 4vw, 4.5rem);
  }

  .page-home .ph-hero__lede {
    margin-bottom: 2.75rem;
  }

  .page-home .ph-hero__anchor-body {
    padding-left: clamp(1.5rem, 2.5vw, 2.25rem);
  }

  .page-home .ph-hero__media {
    display: block;
    position: absolute;
    top: -6%;
    right: -14%;
    width: 72%;
    opacity: 0.2;
    pointer-events: none;
    z-index: 0;
  }

  .page-home .ph-hero__media .sm-media__img {
    width: 100%;
    height: auto;
    filter: saturate(0.9);
  }

  .page-home .ph-hero__media .sm-media__cap {
    display: none;
  }

  .page-home .ph-pack__specs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.5rem, 3vw, 3rem);
  }

  .page-home .ph-pick__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .ph-pick__item {
    padding: 1.75rem 1.25rem 1.75rem 0;
    border-right: var(--ph-rule);
  }

  .page-home .ph-pick__item:nth-child(2n) {
    padding-left: 0;
    border-right: var(--ph-rule);
  }

  .page-home .ph-pick__item:nth-child(2n) {
    padding-left: 1.25rem;
  }

  .page-home .ph-pick__item:last-child {
    border-right: none;
    padding-right: 0;
  }

  .page-home .ph-deliver__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 4rem);
  }

  .page-home .ph-resp__row {
    grid-template-columns: 2.75rem minmax(0, 1fr) minmax(0, 0.4fr);
    gap: 1.5rem;
    align-items: start;
  }

  .page-home .ph-resp__desc {
    grid-column: 2 / 3;
  }

  .page-home .ph-train__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-home .ph-tail__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(2rem, 4vw, 4rem);
  }

  .page-home .ph-tail__links {
    border-top: none;
  }
}

/* ---------- 断点 1280px ---------- */

@media (min-width: 1280px) {
  .page-home .ph-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-home .ph-hero__anchor-body {
    padding-left: 2.5rem;
  }
}

/* ---------- 动效退化 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-home .ph-tick,
  .page-home .ph-tick__bar,
  .page-home .ph-tail__link,
  .page-home .ph-tail__link-t {
    transition: none;
  }
}