.page-home {
  --ph-grid: rgba(111, 168, 220, 0.16);
  --ph-grid-cyan: rgba(34, 211, 238, 0.12);
  display: block;
}

.page-home img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-home .h-section {
  margin-top: 12px;
  max-width: 26ch;
}

/* ---------- 首屏 ---------- */
.page-home .ph-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(180deg, #EEF3F9 0%, var(--c-bg) 58%, #E8EEF6 100%);
  padding-block: clamp(34px, 6vw, 80px) clamp(42px, 7vw, 96px);
}

.page-home .ph-hero::before {
  content: "";
  position: absolute;
  inset: -25% -12% -10% -12%;
  z-index: -1;
  background-image:
    linear-gradient(var(--ph-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--ph-grid) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(120% 88% at 84% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 88% at 84% 0%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-home .ph-hero__title {
  margin: 16px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(31px, 6.4vw, 66px);
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--c-hi);
}

.page-home .ph-hero__lead {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.55vw, 17.5px);
  line-height: 1.85;
  color: var(--c-body);
}

.page-home .ph-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(18px, 3vw, 28px);
  border-top: 1px solid var(--c-line);
}

.page-home .ph-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: var(--c-surface);
  font-size: 14px;
  color: var(--c-body-strong);
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-home .ph-index a .mono {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-sel);
}

.page-home .ph-index a:hover {
  border-color: var(--c-mist);
  color: var(--c-hi);
  transform: translateY(-1px);
}

.page-home .ph-index a[data-current="true"] {
  border-color: var(--c-amber);
  color: var(--c-hi);
}

/* ---------- 01 供货刻度 ---------- */
.page-home .ph-scale {
  background: var(--c-bg);
}

.page-home .ph-scale__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-home .ph-stat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: hidden;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-surface);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-home .ph-stat::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--c-cyan), rgba(34, 211, 238, 0) 72%);
  opacity: 0.75;
}

.page-home .ph-stat:hover {
  border-color: var(--c-mist);
  transform: translateY(-2px);
}

.page-home .ph-stat .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(46px, 8.4vw, 78px);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--c-deep);
}

.page-home .ph-stat:nth-child(2) .stat__value {
  color: var(--c-hi);
}

.page-home .ph-stat__unit {
  margin-left: 6px;
  font-size: 0.36em;
  letter-spacing: 0;
  color: var(--c-sel);
}

.page-home .ph-stat .stat__label {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-ink);
}

.page-home .ph-stat__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-body);
}

.page-home .ph-scale__foot {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--c-body);
}

/* ---------- 02 设备目录（深色带） ---------- */
.page-home .ph-catalog {
  position: relative;
  overflow: hidden;
  background: var(--c-deep);
  padding-block: clamp(46px, 7vw, 88px) clamp(36px, 5vw, 64px);
}

.page-home .ph-catalog::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--ph-grid-cyan) 1px, transparent 1px),
    linear-gradient(90deg, var(--ph-grid-cyan) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.55;
  pointer-events: none;
}

.page-home .ph-catalog > * {
  position: relative;
}

.page-home .ph-catalog .eyebrow {
  color: var(--c-cyan);
}

.page-home .ph-catalog .h-section {
  color: #FFFFFF;
}

.page-home .ph-catalog .p-body {
  margin-top: 14px;
  color: var(--c-on-deep-soft);
}

.page-home .ph-catalog__intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-home .ph-catalog__figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(111, 168, 220, 0.28);
}

.page-home .ph-catalog__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(34, 211, 238, 0.4);
  color: var(--c-cyan);
  font-weight: 600;
  text-decoration: none;
}

.page-home .ph-catalog__link:hover {
  border-bottom-color: var(--c-cyan);
}

.page-home .ph-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: min(80vw, 296px);
  gap: 16px;
  margin-top: clamp(28px, 4vw, 46px);
  padding-inline: max(var(--shell-pad), calc((100% - var(--shell-max)) / 2 + var(--shell-pad)));
  padding-bottom: 16px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(111, 168, 220, 0.5) transparent;
}

.page-home .ph-rail::-webkit-scrollbar {
  height: 6px;
}

.page-home .ph-rail::-webkit-scrollbar-thumb {
  background: rgba(111, 168, 220, 0.45);
  border-radius: var(--r-pill);
}

.page-home .ph-rail__card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
  border-radius: var(--r-lg);
  color: inherit;
  text-decoration: none;
}

.page-home .ph-rail__card .media {
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-home .ph-rail__card .h-card {
  margin: 0;
  color: var(--c-hi);
}

.page-home .ph-rail__card .tag {
  align-self: flex-start;
}

.page-home .ph-rail__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-body);
}

.page-home .ph-rail__meta {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--c-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--c-sel);
}

/* ---------- 03 两条入口 ---------- */
.page-home .ph-channels {
  background: var(--c-bg);
}

.page-home .ph-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-home .ph-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-surface);
}

.page-home .ph-channel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(34, 211, 238, 0));
}

.page-home .ph-channel--mobile::before {
  background: linear-gradient(90deg, var(--c-amber), rgba(245, 158, 11, 0));
}

.page-home .ph-channel__tag {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-sel);
}

.page-home .ph-channel--mobile .ph-channel__tag {
  color: #A8680A;
}

.page-home .ph-channel .h-card {
  margin: 0;
  color: var(--c-hi);
}

.page-home .ph-channel .p-body {
  margin: 0;
}

.page-home .ph-channel__list {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-home .ph-channel__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-body-strong);
}

.page-home .ph-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-cyan);
}

.page-home .ph-channel--mobile .ph-channel__list li::before {
  background: var(--c-amber);
}

.page-home .ph-channel .btn {
  align-self: flex-start;
  margin-top: 6px;
}

/* ---------- 04 服务网络 ---------- */
.page-home .ph-network {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--c-bg) 100%);
}

.page-home .ph-network__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-home .ph-network__map {
  padding: clamp(12px, 2vw, 20px);
  border: 1px solid rgba(111, 168, 220, 0.25);
  border-radius: var(--r-lg);
  background: var(--c-deep);
}

.page-home .ph-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-home .ph-map__grid line {
  stroke: rgba(111, 168, 220, 0.16);
  stroke-width: 1;
  stroke-dasharray: 2 6;
}

.page-home .ph-map__land {
  stroke: rgba(111, 168, 220, 0.5);
  stroke-width: 1.2;
}

.page-home .ph-map__outer path {
  fill: none;
  stroke: rgba(34, 211, 238, 0.45);
  stroke-width: 1.2;
  stroke-dasharray: 5 6;
}

.page-home .ph-map__dots circle {
  fill: var(--c-cyan);
}

.page-home .ph-map__dots .ph-dot:first-child circle {
  fill: var(--c-amber);
}

.page-home .ph-map__dots text {
  fill: var(--c-on-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-home .ph-map__labels text {
  fill: rgba(214, 226, 238, 0.55);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-home .ph-network__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .ph-network__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--c-line);
  font-size: 15px;
  color: var(--c-ink);
}

.page-home .ph-network__list li .mono {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--c-sel);
}

.page-home .ph-network__side .p-body {
  margin-top: 18px;
  margin-bottom: 0;
}

.page-home .ph-network__figure {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

/* ---------- 05 品牌专栏 ---------- */
.page-home .ph-column {
  background: var(--c-bg);
}

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

.page-home .ph-column__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .ph-column__item {
  padding: 20px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-home .ph-column__item:first-child {
  padding-top: 0;
}

.page-home .ph-column__meta {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--c-sel);
}

.page-home .ph-column__item .h-card {
  margin: 0 0 8px;
}

.page-home .ph-column__item .h-card a {
  color: var(--c-hi);
  text-decoration: none;
}

.page-home .ph-column__item .h-card a:hover {
  color: var(--c-sel);
}

.page-home .ph-column__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-body);
}

.page-home .ph-column__figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-home .ph-column__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 26px;
  font-weight: 600;
  color: var(--c-sel);
  text-decoration: none;
}

.page-home .ph-column__more:hover {
  color: var(--c-hi);
}

/* ---------- 收尾 ---------- */
.page-home .ph-start {
  background: var(--c-bg);
  padding-bottom: clamp(56px, 8vw, 112px);
}

.page-home .ph-start__panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--c-deep) 0%, var(--c-hi) 100%);
}

.page-home .ph-start__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--ph-grid-cyan) 1px, transparent 1px),
    linear-gradient(90deg, var(--ph-grid-cyan) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-home .ph-start__copy,
.page-home .ph-start__actions {
  position: relative;
}

.page-home .ph-start__panel .eyebrow {
  color: var(--c-cyan);
}

.page-home .ph-start__panel .h-section {
  margin-top: 12px;
  max-width: 24ch;
  color: #FFFFFF;
}

.page-home .ph-start__panel .p-body {
  margin-top: 14px;
  color: var(--c-on-deep);
}

.page-home .ph-start__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.page-home .ph-start__link {
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(34, 211, 238, 0.45);
  color: var(--c-cyan);
  font-weight: 600;
  text-decoration: none;
}

.page-home .ph-start__link:hover {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .ph-scale__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-home .ph-channels__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-home .ph-rail {
    grid-auto-columns: min(52vw, 320px);
  }
}

@media (min-width: 900px) {
  .page-home .ph-catalog__intro {
    grid-template-columns: minmax(0, 1fr) 372px;
    align-items: center;
    gap: 44px;
  }

  .page-home .ph-network__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 1fr);
    align-items: center;
    gap: 36px;
  }

  .page-home .ph-column__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 44px;
  }

  .page-home .ph-start__panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: center;
    gap: 40px;
  }
}

@media (min-width: 1180px) {
  .page-home .ph-rail {
    grid-auto-columns: 336px;
  }
}