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

.page-home {
  --home-line: rgba(36, 64, 90, 0.9);
  --home-line-soft: rgba(36, 64, 90, 0.55);
  --home-paper-line: rgba(36, 64, 90, 0.22);
  display: block;
  background: var(--ink-900);
}

/* ---------- 通用区块 ---------- */

.page-home .band {
  padding: clamp(56px, 9vw, 112px) 0;
  background: var(--ink-900);
  color: var(--paper-050);
}

.page-home .band--deep {
  background: var(--ink-700);
}

.page-home .band--paper {
  background: var(--paper-050);
  color: var(--ink-900);
}

.page-home .band__head {
  max-width: 46rem;
  margin-bottom: clamp(28px, 4.5vw, 48px);
}

.page-home .band__eyebrow {
  margin: 0 0 12px;
  color: var(--copper-300);
}

.page-home .band--paper .band__eyebrow {
  color: var(--copper-500);
}

.page-home .band__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.03em;
}

.page-home .band__intro {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone-400);
}

.page-home .band--paper .band__intro {
  color: var(--graphite-600);
}

.page-home .link-plain {
  display: inline-block;
  padding: 8px 0;
  color: var(--cyan-400);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 199, 196, 0.45);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-home .link-plain:hover,
.page-home .link-plain:focus-visible {
  color: var(--paper-050);
  border-bottom-color: var(--copper-300);
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: calc(var(--header-offset) + clamp(24px, 4vw, 52px)) 0 clamp(52px, 8vw, 104px);
  background:
    radial-gradient(115% 82% at 84% 0%, rgba(200, 149, 47, 0.16), transparent 62%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-900) 62%, var(--ink-700) 100%);
  color: var(--paper-050);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, var(--home-line-soft) 0, var(--home-line-soft) 1px, transparent 1px, transparent 46px),
    repeating-linear-gradient(90deg, var(--home-line-soft) 0, var(--home-line-soft) 1px, transparent 1px, transparent 46px);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 76%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 76%);
}

.page-home .hero__inner {
  position: relative;
  z-index: 1;
}

.page-home .hero__crumb {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-home .hero__crumb .breadcrumb__item {
  font-size: 13px;
  color: var(--stone-400);
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(36px, 5vw, 64px);
  align-items: start;
}

.page-home .hero__eyebrow {
  margin: 0 0 16px;
  color: var(--copper-300);
}

.page-home .hero__title {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.038em;
  color: var(--paper-050);
}

.page-home .hero__lede {
  max-width: 34em;
  margin: 0 0 clamp(26px, 4vw, 42px);
  font-size: clamp(16px, 1.55vw, 19px);
  line-height: 1.85;
  color: var(--stone-400);
}

.page-home .hero-facts {
  list-style: none;
  margin: 0 0 clamp(26px, 4vw, 40px);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-bottom: 1px solid var(--home-line);
}

.page-home .hero-fact {
  padding: 18px 0;
  border-top: 1px solid var(--home-line);
}

.page-home .hero-fact__label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper-500);
  margin-bottom: 10px;
}

.page-home .hero-fact__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 2.7vw, 30px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper-050);
}

.page-home .hero-fact__note {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone-400);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-home .hero__aside {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.page-home .hero__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--home-line);
  background: var(--ink-700);
}

.page-home .hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, rgba(47, 199, 196, 0.07) 0, rgba(47, 199, 196, 0.07) 1px, transparent 1px, transparent 30px),
    linear-gradient(180deg, transparent 42%, rgba(11, 27, 43, 0.78) 100%);
}

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

.page-home .hero-archive {
  margin: 0;
  border-top: 1px solid var(--home-line);
}

.page-home .hero-archive__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--home-line);
}

.page-home .hero-archive dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone-400);
}

.page-home .hero-archive dd {
  margin: 0;
  font-size: 14px;
  color: var(--paper-050);
  text-align: right;
}

/* ---------- 机型速览 ---------- */

.page-home .devices__banner {
  margin: 0 0 clamp(24px, 4vw, 40px);
  overflow: hidden;
  border: 1px solid var(--home-line);
  background: var(--ink-700);
  aspect-ratio: 16 / 9;
}

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

.page-home .matrix {
  overflow-x: auto;
  border: 1px solid var(--home-line);
  background: rgba(20, 41, 61, 0.45);
  -webkit-overflow-scrolling: touch;
}

.page-home .matrix:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-home .matrix__table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 14px;
  color: var(--paper-050);
}

.page-home .matrix__table th,
.page-home .matrix__table td {
  padding: 15px 20px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--home-line);
}

.page-home .matrix__table thead th {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--stone-400);
  background: rgba(11, 27, 43, 0.75);
}

.page-home .matrix__table tbody tr {
  transition: background var(--dur-fast) var(--ease);
}

.page-home .matrix__table tbody tr:hover {
  background: rgba(47, 199, 196, 0.08);
}

.page-home .matrix__table tbody tr:last-child td {
  border-bottom: none;
}

.page-home .matrix__table tbody td:first-child {
  color: var(--cyan-400);
}

.page-home .grade {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  border: 1px solid currentColor;
}

.page-home .grade--a {
  color: var(--cyan-400);
}

.page-home .grade--b {
  color: var(--copper-300);
}

.page-home .devices__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 32px;
  align-items: center;
  justify-content: space-between;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .devices__note {
  flex: 1 1 26rem;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone-400);
}

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

/* ---------- 区域合作 ---------- */

.page-home .regions__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(36px, 5vw, 64px);
  align-items: start;
}

.page-home .regions__lead .band__intro + .band__intro {
  margin-top: 16px;
}

.page-home .regions__cta {
  margin-top: clamp(22px, 3vw, 32px);
}

.page-home .regions__ref {
  margin: clamp(28px, 4vw, 44px) 0 0;
  max-width: 260px;
}

.page-home .regions__ref img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--home-line);
  background: var(--ink-900);
}

.page-home .regions__ref figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone-400);
}

.page-home .regions__visual {
  display: flex;
  flex-direction: column;
  gap: clamp(26px, 4vw, 40px);
}

.page-home .donut-wrap {
  position: relative;
  width: min(340px, 76vw);
  aspect-ratio: 1;
  margin: 0 auto;
}

.page-home .donut {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    var(--copper-500) 0deg 60deg,
    var(--cyan-400) 60deg 120deg,
    var(--copper-300) 120deg 180deg,
    var(--cyan-600) 180deg 240deg,
    var(--ink-500) 240deg 300deg,
    var(--stone-400) 300deg 360deg
  );
  box-shadow: 0 0 70px rgba(200, 149, 47, 0.12);
}

.page-home .donut::after {
  content: "";
  position: absolute;
  inset: 30%;
  border-radius: 50%;
  background: var(--ink-700);
}

.page-home .donut__center {
  position: absolute;
  inset: 30%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  pointer-events: none;
}

.page-home .donut__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 4.4vw, 42px);
  line-height: 1;
  color: var(--copper-300);
}

.page-home .donut__cap {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--stone-400);
  white-space: nowrap;
}

.page-home .donut-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--home-line);
}

.page-home .donut-legend__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  font-size: 14px;
  color: var(--paper-050);
  border-bottom: 1px solid var(--home-line);
}

.page-home .donut-legend__item .mono {
  font-size: 12px;
  color: var(--stone-400);
}

.page-home .donut-legend__item::before {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  background: var(--ink-500);
}

.page-home .donut-legend__item:nth-child(1)::before { background: var(--copper-500); }
.page-home .donut-legend__item:nth-child(2)::before { background: var(--cyan-400); }
.page-home .donut-legend__item:nth-child(3)::before { background: var(--copper-300); }
.page-home .donut-legend__item:nth-child(4)::before { background: var(--cyan-600); }
.page-home .donut-legend__item:nth-child(5)::before { background: var(--ink-500); }
.page-home .donut-legend__item:nth-child(6)::before { background: var(--stone-400); }

.page-home .regions__outline {
  margin: clamp(40px, 6vw, 76px) 0 0;
  height: clamp(150px, 22vw, 250px);
  overflow: hidden;
  border-top: 1px solid var(--home-line);
  border-bottom: 1px solid var(--home-line);
  background: var(--ink-900);
}

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

/* ---------- 联动链条 ---------- */

.page-home .chain {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--home-line);
  border: 1px solid var(--home-line);
}

.page-home .chain__item {
  padding: clamp(20px, 3vw, 30px);
  background: var(--ink-900);
}

.page-home .chain__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper-500);
  margin-bottom: 14px;
}

.page-home .chain__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper-050);
}

.page-home .chain__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone-400);
}

/* ---------- 六步流程 ---------- */

.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-bottom: 1px solid var(--home-paper-line);
}

.page-home .steps__item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 22px 0;
  border-top: 1px solid var(--home-paper-line);
}

.page-home .steps__idx {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.02em;
  color: var(--copper-500);
}

.page-home .steps__title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-900);
}

.page-home .steps__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite-600);
}

.page-home .process__more {
  margin: clamp(26px, 4vw, 38px) 0 0;
  font-size: 15px;
  color: var(--graphite-600);
}

.page-home .process__more a {
  color: var(--cyan-600);
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 143, 146, 0.5);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-home .process__more a:hover,
.page-home .process__more a:focus-visible {
  color: var(--ink-900);
  border-bottom-color: var(--copper-500);
}

/* ---------- 收束 ---------- */

.page-home .closing {
  border-top: 1px solid var(--home-line);
}

.page-home .closing__title {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(26px, 4vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.032em;
  color: var(--paper-050);
}

.page-home .closing__text {
  max-width: 44rem;
  margin: 0 0 clamp(24px, 3.4vw, 34px);
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone-400);
}

.page-home .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .closing__meta {
  margin: 24px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone-400);
}

/* ---------- 响应式 ---------- */

@media (max-width: 560px) {
  .page-home .hero-archive__row {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-home .hero-archive dd {
    text-align: left;
  }

  .page-home .steps__item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
  }

  .page-home .steps__idx {
    font-size: 20px;
  }
}

@media (min-width: 560px) {
  .page-home .hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .hero-fact {
    padding: 20px 22px 20px 0;
  }

  .page-home .hero-fact + .hero-fact {
    padding-left: 22px;
    border-left: 1px solid var(--home-line);
  }

  .page-home .donut-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }
}

@media (min-width: 760px) {
  .page-home .chain {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .devices__foot {
    flex-wrap: nowrap;
  }
}

@media (min-width: 901px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .regions__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(44px, 5vw, 80px);
  }

  .page-home .regions__visual {
    padding-top: 8px;
  }

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

  .page-home .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(32px, 4vw, 60px);
  }
}

@media (min-width: 1180px) {
  .page-home .donut-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .matrix__table tbody tr,
  .page-home .link-plain,
  .page-home .process__more a {
    transition: none;
  }
}