.page-home {
  --home-rail: 6px;
  background: var(--c-cream);
  color: var(--c-ink);
  overflow-x: clip;
}

/* ---------- 首屏分屏 ---------- */
.page-home .home-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  border-bottom: 1px solid var(--c-line);
}

.page-home .hero-pane--copy {
  padding: 44px var(--pad) 36px;
  background: var(--c-cream);
}

.page-home .hero-pane--visual {
  position: relative;
  padding: 30px var(--pad) 44px;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(53, 224, 208, 0.10), transparent 62%),
    linear-gradient(160deg, var(--c-deep) 0%, var(--c-night) 100%);
  color: #ffffff;
  overflow: hidden;
}

.page-home .hero-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page-home .hero-lines svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-home .hero-copy,
.page-home .hero-visual {
  position: relative;
  z-index: 2;
}

.page-home .hero-copy h1 {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-size: clamp(28px, 7vw, 44px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}

.page-home .hero-copy .lead {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-gray);
  margin: 0;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}

.page-home .hero-foot {
  margin: 22px 0 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c-gray);
}

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

.page-home .hero-visual .media-frame {
  border-color: rgba(214, 162, 74, 0.42);
}

.page-home .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-body);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.76);
}

.page-home .hero-facts .mono {
  color: var(--c-gold);
  font-size: 16px;
  font-weight: 600;
  margin-right: 2px;
}

@media (min-width: 960px) {
  .page-home .home-hero {
    grid-template-columns: 55fr 45fr;
    min-height: 620px;
  }

  .page-home .home-hero::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 55%;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--c-gold) 20%, var(--c-gold) 80%, transparent);
    z-index: 4;
  }

  .page-home .hero-pane--copy {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 88px 56px;
  }

  .page-home .hero-copy {
    max-width: 560px;
  }

  .page-home .hero-pane--visual {
    display: flex;
    align-items: center;
    padding: 0;
  }

  .page-home .hero-visual {
    max-width: 520px;
    padding: 88px 0 88px 56px;
  }
}

/* ---------- 章节通用 ---------- */
.page-home .section-lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-gray);
}

/* ---------- 两步路径 ---------- */
.page-home .steps-layout {
  display: grid;
  gap: 32px;
  margin-top: 34px;
}

.page-home .step-card {
  position: relative;
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 26px 24px 24px 28px;
}

.page-home .step-card + .step-card {
  margin-top: 16px;
}

.page-home .step-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 3px;
  border-radius: 2px;
  background: var(--c-gold);
}

.page-home .step-card__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-rust);
}

.page-home .step-card h3 {
  margin: 8px 0 8px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-home .step-card p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.82;
  color: var(--c-gray);
  max-width: 56ch;
}

.page-home .step-meter {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin: 22px 0 0;
  padding: 16px 20px;
  background: var(--c-gold-soft);
  border-radius: var(--radius);
}

.page-home .step-meter__value {
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-deep);
}

.page-home .step-meter__unit {
  font-size: 15px;
  margin-left: 3px;
  color: var(--c-deep);
}

.page-home .step-meter__label {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-ink);
}

.page-home .step-figure {
  margin: 0;
}

.page-home .step-figure figcaption,
.page-home .perf-visual figcaption {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-gray);
}

@media (min-width: 960px) {
  .page-home .steps-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 56px;
    align-items: start;
    margin-top: 46px;
  }
}

/* ---------- 版本时间线 ---------- */
.page-home .home-timeline {
  position: relative;
  margin-top: 38px;
  padding-left: 30px;
}

.page-home .home-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--c-line);
}

.page-home .home-timeline .timeline__item {
  position: relative;
}

.page-home .home-timeline .timeline__item + .timeline__item {
  margin-top: 24px;
}

.page-home .home-timeline .timeline__item::before {
  content: "";
  position: absolute;
  left: -28.5px;
  top: 10px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--c-paper);
  border: 2px solid var(--c-gold);
}

.page-home .home-timeline .timeline__item.is-current::before {
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(53, 224, 208, 0.18);
}

.page-home .home-timeline .timeline__label {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-rust);
}

.page-home .vnode {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 0;
}

.page-home .vnode[open] {
  border-color: var(--c-gold);
}

.page-home .vnode__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-home .vnode__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-gold);
}

.page-home .vnode[open] .vnode__summary::after {
  content: "−";
}

.page-home .vnode__title {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--c-ink);
}

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

.page-home .vnode__body p {
  margin: 14px 0 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-gray);
  max-width: 64ch;
}

/* ---------- 栏目导览 ---------- */
.page-home .nav-grid {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.page-home .nav-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  color: var(--c-ink);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-home .nav-card:hover,
.page-home .nav-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--c-gold);
}

.page-home .nav-card__idx {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-gold);
  font-weight: 600;
}

.page-home .nav-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
}

.page-home .nav-card__body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-gray);
}

.page-home .nav-card__more {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--c-rust);
}

@media (min-width: 640px) {
  .page-home .nav-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-home .nav-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 加载与服务能力 ---------- */
.page-home .home-perf {
  padding: 62px 0 68px;
  background:
    radial-gradient(90% 70% at 0% 100%, rgba(214, 162, 74, 0.14), transparent 60%),
    linear-gradient(150deg, var(--c-deep) 0%, var(--c-night) 100%);
  color: #ffffff;
}

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

.page-home .perf-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-gold);
}

.page-home .perf-head__title {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.4vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.page-home .perf-text {
  margin: 0;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.76);
}

.page-home .perf-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 24px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .perf-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 14px;
  border-top: 1px solid rgba(214, 162, 74, 0.4);
}

.page-home .perf-stat__value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-gold);
  letter-spacing: -0.01em;
}

.page-home .perf-stat__value:not(.mono) {
  font-family: var(--font-head);
  font-size: 20px;
  color: var(--c-gold-soft);
}

.page-home .perf-stat__unit {
  font-size: 14px;
  margin-left: 3px;
}

.page-home .perf-stat__label {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
}

.page-home .perf-visual {
  margin: 0;
}

.page-home .perf-visual .media-frame {
  border-color: rgba(214, 162, 74, 0.42);
}

.page-home .perf-visual figcaption {
  color: rgba(255, 255, 255, 0.62);
}

@media (min-width: 960px) {
  .page-home .home-perf {
    padding: 86px 0 92px;
  }

  .page-home .perf-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 64px;
    align-items: center;
  }

  .page-home .perf-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 32px;
  }
}

/* ---------- 下一步 ---------- */
.page-home .next-layout {
  display: grid;
  gap: 30px;
  margin-top: 34px;
}

.page-home .next-media {
  margin: 0;
}

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

.page-home .next-item {
  padding: 22px 0 24px;
  border-top: 1px solid var(--c-line);
}

.page-home .next-item:last-child {
  border-bottom: 1px solid var(--c-line);
}

.page-home .next-item__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-rust);
}

.page-home .next-item__title {
  margin: 8px 0 8px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-home .next-item__body {
  margin: 0 0 14px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.82;
  color: var(--c-gray);
  max-width: 58ch;
}

.page-home .next-item__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--c-gold);
  padding-bottom: 2px;
}

.page-home .next-item__link:hover,
.page-home .next-item__link:focus-visible {
  color: var(--c-rust);
  border-bottom-color: var(--c-rust);
}

@media (min-width: 900px) {
  .page-home .next-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 52px;
    align-items: start;
    margin-top: 44px;
  }
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 420px) {
  .page-home .hero-copy h1 {
    font-size: 26px;
  }

  .page-home .perf-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-home .step-meter {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .nav-card {
    transition: none;
  }

  .page-home .nav-card:hover,
  .page-home .nav-card:focus-visible {
    transform: none;
  }
}