.page-home {
  background: var(--ink-900);
  color: var(--text-body);
  overflow-x: clip;
}

.page-home section[id] {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-home a:focus-visible,
.page-home button:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-home .accent-lime { color: var(--lime); }
.page-home .accent-cyan { color: var(--cyan); }
.page-home .accent-orange { color: var(--orange); }

.page-home .eyebrow {
  margin: 0 0 14px;
  font-family: var(--ff-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-home .display-xl {
  margin: 0;
  color: var(--text-hi);
  font-size: var(--display);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.page-home .section {
  position: relative;
  padding: 60px 0;
}

.page-home .section--tight { padding: 46px 0; }
.page-home .section--alt { background: var(--ink-800); }

.page-home .section__head {
  max-width: 720px;
  margin: 0 0 36px;
}

.page-home .section__title {
  margin: 0 0 14px;
  color: var(--text-hi);
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-home .section__lead {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-18);
  line-height: 1.75;
}

/* ---------- 按钮与延伸链接 ---------- */
.page-home .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  font-size: var(--fs-16);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 4px;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease),
    border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .btn--primary {
  background: var(--orange);
  color: var(--ink-900);
}

.page-home .btn--primary:hover { transform: translateY(-2px); }

.page-home .btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text-hi);
}

.page-home .btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-home .link-more {
  display: inline-block;
  color: var(--cyan);
  font-size: var(--fs-15);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 210, 0.35);
  padding-bottom: 2px;
}

.page-home .link-more:hover { border-bottom-color: var(--cyan); }

.page-home .chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: var(--fs-13);
  letter-spacing: 0.04em;
}

.page-home .chip--lime {
  background: var(--lime);
  color: var(--ink-900);
  font-weight: 700;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: calc(var(--header-h) + 36px) 0 52px;
}

.page-home .hero__deco {
  position: absolute;
  inset: -14% -6% 22% -6%;
  z-index: -1;
  background:
    radial-gradient(58% 66% at 84% 12%, rgba(34, 224, 210, 0.26), transparent 62%),
    radial-gradient(46% 58% at 6% 2%, rgba(74, 46, 143, 0.62), transparent 68%),
    linear-gradient(138deg, var(--ink-800) 0%, var(--ink-900) 58%);
  clip-path: polygon(0 0, 100% 0, 100% 58%, 42% 100%, 0 78%);
  pointer-events: none;
}

.page-home .hero__inner {
  display: grid;
  gap: 36px;
}

.page-home .hero__intro {
  margin: 20px 0 0;
  max-width: 44ch;
  font-size: var(--fs-18);
  line-height: 1.75;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-home .hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-size: var(--fs-15);
}

.page-home .hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-home .hero__meta .mono {
  font-size: var(--fs-18);
  font-weight: 700;
}

.page-home .hero__bento {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .hero__bento > * {
  margin: 0;
  padding: 18px;
  background: var(--ink-800);
}

.page-home .hero__shot {
  grid-column: 1 / -1;
  padding: 0;
}

.page-home .media-frame {
  position: relative;
  display: block;
}

.page-home .media-frame__inner { display: block; }

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

.page-home .media-frame__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(35, 48, 102, 0.6) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(35, 48, 102, 0.6) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.3;
  mix-blend-mode: screen;
  pointer-events: none;
}

.page-home .hero__caption {
  padding: 12px 18px 16px;
  color: var(--text-idx);
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
}

.page-home .hero__badge-title {
  margin: 0;
  color: var(--text-hi);
  font-weight: 700;
  font-size: var(--fs-16);
}

.page-home .hero__badge-text {
  margin: 8px 0 0;
  font-size: var(--fs-13);
  line-height: 1.7;
  color: var(--text-idx);
}

.page-home .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(180, 255, 69, 0.14);
}

.page-home .hero__stat .stat__value {
  display: block;
  font-family: var(--ff-mono);
  font-size: var(--fs-38);
  line-height: 1.1;
  color: var(--text-hi);
}

.page-home .hero__stat .stat__label {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-13);
  line-height: 1.6;
  color: var(--text-idx);
}

/* ---------- 步骤序号导航（窄屏为顶部胶囊） ---------- */
.page-home .rail {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px var(--gutter);
  background: linear-gradient(180deg, rgba(10, 16, 41, 0.97), rgba(10, 16, 41, 0.85));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .rail::-webkit-scrollbar { display: none; }

.page-home .rail__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .rail__item {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--text-idx);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .rail__item:hover,
.page-home .rail__item:focus-visible {
  color: var(--text-hi);
  border-color: var(--cyan);
}

.page-home .rail__no {
  font-size: var(--fs-13);
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-home .rail__label { font-size: var(--fs-13); }
.page-home .rail__track { display: none; }
.page-home .rail__num { display: none; }

/* ---------- 进入顺序 ---------- */
.page-home .split { display: grid; gap: 36px; }

.page-home .steps {
  display: grid;
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .steps__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 18px;
  background: var(--ink-900);
}

.page-home .steps__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  color: var(--lime);
  border: 1px solid rgba(180, 255, 69, 0.45);
  border-radius: 999px;
}

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

.page-home .steps__body p {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.75;
}

.page-home .split__figure { margin: 0; }

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

.page-home .split__figure figcaption {
  margin-top: 12px;
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  color: var(--text-idx);
}

/* ---------- 按目的分流 ---------- */
.page-home .routes {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .route {
  display: block;
  padding: 26px 22px;
  background: var(--ink-900);
  color: inherit;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-home .route:hover,
.page-home .route:focus-visible {
  border-left-color: var(--cyan);
  background: #16204a;
  transform: translateY(-2px);
}

.page-home .route__no {
  display: block;
  margin-bottom: 14px;
  font-size: var(--fs-13);
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-home .route__title {
  margin: 0 0 10px;
  color: var(--text-hi);
  font-size: var(--fs-24);
  font-weight: 700;
}

.page-home .route__text {
  margin: 0 0 16px;
  font-size: var(--fs-15);
  line-height: 1.75;
}

/* ---------- 序号用法 ---------- */
.page-home .path {
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .path__step {
  padding: 24px 20px;
  background: var(--ink-900);
}

.page-home .path__no {
  display: block;
  margin-bottom: 14px;
  font-size: var(--fs-38);
  line-height: 1;
  color: rgba(34, 224, 210, 0.32);
}

.page-home .path__title {
  margin: 0 0 8px;
  color: var(--text-hi);
  font-size: var(--fs-18);
  font-weight: 700;
}

.page-home .path__text {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.75;
}

.page-home .path__note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--lime);
  font-size: var(--fs-15);
  line-height: 1.75;
  color: var(--text-idx);
}

/* ---------- 换设备打开 ---------- */
.page-home .devices { display: grid; gap: 28px; }

.page-home .devices__art { margin: 0; }

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

.page-home .devices__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .devices__row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 12px;
  background: var(--ink-900);
}

.page-home .devices__name {
  font-size: var(--fs-13);
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-home .devices__row p {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.7;
}

.page-home .devices__more { margin: 30px 0 0; }

/* ---------- 更新节奏 ---------- */
.page-home .updates { display: grid; gap: 36px; }

.page-home .updates__body .chip { margin-bottom: 16px; }

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

.page-home .updates__list li {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: var(--fs-15);
  line-height: 1.75;
}

.page-home .updates__team {
  margin: 22px 0 0;
  font-size: var(--fs-15);
  line-height: 1.75;
  color: var(--text-idx);
}

.page-home .updates__links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin: 24px 0 0;
}

.page-home .updates__art { margin: 0; }

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

.page-home .updates__art figcaption {
  margin-top: 12px;
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  color: var(--text-idx);
}

/* ---------- 中屏排布 ---------- */
@media (min-width: 760px) {
  .page-home .routes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .path { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-home .section { padding: 76px 0; }
  .page-home .section--tight { padding: 60px 0; }
}

@media (min-width: 900px) {
  .page-home .hero { padding: calc(var(--header-h) + 56px) 0 72px; }
  .page-home .hero__inner {
    grid-template-columns: minmax(0, 44fr) minmax(0, 56fr);
    gap: 56px;
    align-items: center;
  }
  .page-home .split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 56px;
    align-items: start;
  }
  .page-home .devices,
  .page-home .updates {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1200px) {
  .page-home .routes { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- 宽屏：左侧固定序号轨 ---------- */
@media (min-width: 1360px) {
  .page-home .rail {
    position: fixed;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    flex-direction: column;
    gap: 0;
    width: 56px;
    padding: 16px 0;
    border: 1px solid var(--line);
    border-left: 0;
    border-radius: 0 14px 14px 0;
    background: rgba(18, 26, 62, 0.9);
    overflow: visible;
  }

  .page-home .rail__list {
    flex-direction: column;
    gap: 4px;
  }

  .page-home .rail__item {
    justify-content: center;
    padding: 8px 0;
    border-radius: 10px;
  }

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

  .page-home .rail__track {
    display: block;
    position: relative;
    width: 2px;
    height: 72px;
    margin: 12px auto 10px;
    background: var(--line);
  }

  .page-home .rail__fill {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(180deg, var(--cyan), var(--lime));
    transition: height 160ms linear;
  }

  .page-home .rail__num {
    display: block;
    text-align: center;
    font-size: var(--fs-13);
    letter-spacing: 0.08em;
    color: var(--cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .btn,
  .page-home .route,
  .page-home .rail__item,
  .page-home .rail__fill {
    transition: none;
  }

  .page-home .route:hover,
  .page-home .route:focus-visible,
  .page-home .btn--primary:hover {
    transform: none;
  }
}