.page-home {
  --home-cut: 16px;
  position: relative;
  display: block;
}

/* ---------- 上下文条 ---------- */
.page-home .home-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding-block: 18px 0;
  font-size: var(--fs-sm);
}
.page-home .home-context__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-home .home-context__item {
  color: var(--paper);
  font-weight: 500;
  letter-spacing: 0.02em;
}
.page-home .home-context__note {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.12em;
  color: var(--gold);
}

/* ---------- 左侧章节索引 ---------- */
.page-home .home-rail {
  display: none;
}
@media (min-width: 1180px) {
  .page-home .home-rail {
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: fixed;
    left: max(12px, calc((100vw - var(--shell)) / 2 - 108px));
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
  }
  .page-home .home-rail__link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    color: var(--muted);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
  }
  .page-home .home-rail__link:hover {
    color: var(--paper);
  }
  .page-home .home-rail__link[aria-current="true"] {
    color: var(--cyan);
    border-left-color: var(--cyan);
  }
  .page-home .home-rail__num {
    font-size: var(--fs-mono);
    letter-spacing: 0.06em;
  }
  .page-home .home-rail__label {
    writing-mode: vertical-rl;
    font-size: 11px;
    letter-spacing: 0.14em;
  }
}

/* ---------- 章节通用 ---------- */
.page-home .section {
  position: relative;
  padding-block: clamp(48px, 8vw, 96px);
}
.page-home .section__title {
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.page-home .section__lead {
  max-width: 62ch;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 5vw, 60px) 0 clamp(48px, 7vw, 92px);
}
.page-home .hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 48px);
  position: relative;
}
.page-home .hero__frame {
  position: relative;
  padding: clamp(16px, 2.6vw, 26px) 0 clamp(16px, 2.6vw, 26px) clamp(14px, 2vw, 22px);
}
.page-home .hero__frame::before,
.page-home .hero__frame::after {
  content: "";
  position: absolute;
  left: 0;
  width: clamp(28px, 3vw, 46px);
  height: clamp(28px, 3vw, 46px);
  border: 1px solid rgba(47, 243, 208, 0.5);
  pointer-events: none;
}
.page-home .hero__frame::before {
  top: 0;
  border-right: 0;
  border-bottom: 0;
}
.page-home .hero__frame::after {
  bottom: 0;
  border-right: 0;
  border-top: 0;
}
.page-home .hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  padding: 6px 13px 6px 11px;
  border: 1px solid var(--line-gold);
  font-size: var(--fs-mono);
  letter-spacing: 0.12em;
  color: var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}
.page-home .hero__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(232, 185, 74, 0.18);
}
.page-home .hero__title {
  margin: 0 0 20px;
  font-size: var(--fs-xxl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.14;
  color: var(--paper);
}
.page-home .hero__accent {
  position: relative;
  color: var(--cyan);
  white-space: nowrap;
}
.page-home .hero__accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.14em;
  background: linear-gradient(90deg, var(--cyan), rgba(47, 243, 208, 0));
  opacity: 0.55;
}
.page-home .hero__lead {
  max-width: 40em;
  margin: 0 0 26px;
  font-size: var(--fs-md);
  line-height: 1.8;
  color: var(--muted);
}
.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-home .hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 30px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  font-size: var(--fs-sm);
  color: var(--muted);
}
.page-home .hero__meta-item .mono {
  margin-right: 4px;
  font-size: var(--fs-base);
  color: var(--cyan);
}
.page-home .hero__media {
  position: relative;
  margin: 0;
}
.page-home .hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  filter: saturate(0.82) brightness(0.84);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 38px), calc(100% - 38px) 100%, 0 100%);
}
.page-home .hero__media::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 54%;
  height: 4px;
  background: linear-gradient(90deg, var(--cyan), var(--orange), rgba(255, 107, 61, 0));
}
.page-home .hero__media-cap {
  display: block;
  margin-top: 12px;
  font-size: var(--fs-mono);
  letter-spacing: 0.1em;
  color: var(--muted);
}
@media (min-width: 900px) {
  .page-home .hero {
    padding-block: clamp(44px, 6vw, 76px) clamp(64px, 8vw, 110px);
  }
  .page-home .hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: clamp(30px, 4vw, 60px);
  }
  .page-home .hero__media {
    margin-right: calc(-1 * (var(--gutter) + 1.5vw));
  }
  .page-home .hero__media img {
    aspect-ratio: 16 / 10;
  }
}

/* ---------- 三条主线 ---------- */
.page-home .lines__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(28px, 4vw, 46px);
}
.page-home .lines__stack {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}
.page-home .line-entry {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  background: linear-gradient(104deg, var(--panel) 0%, rgba(14, 42, 34, 0.62) 58%, rgba(6, 20, 16, 0.2) 100%);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--home-cut)) 0, 100% var(--home-cut), 100% 100%, var(--home-cut) 100%, 0 calc(100% - var(--home-cut)));
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease);
}
.page-home .line-entry:hover,
.page-home .line-entry:focus-within {
  transform: translate(3px, -3px);
  border-color: var(--line);
  background: linear-gradient(104deg, var(--panel-2) 0%, rgba(22, 56, 45, 0.6) 58%, rgba(6, 20, 16, 0.28) 100%);
}
.page-home .line-entry__index {
  margin: 0 0 10px;
  font-size: var(--fs-mono);
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-home .line-entry__title {
  margin: 0 0 12px;
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.32;
  color: var(--paper);
}
.page-home .line-entry__text {
  margin: 0 0 16px;
  max-width: 52ch;
  font-size: var(--fs-base);
  line-height: 1.8;
  color: var(--muted);
}
.page-home .line-entry__link {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 208, 0.36);
  padding-bottom: 2px;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}
.page-home .line-entry__link:hover {
  color: var(--cyan-soft);
  border-color: var(--cyan-soft);
}
.page-home .lines__media {
  margin: 0;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}
.page-home .lines__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.78) brightness(0.86);
}
@media (min-width: 700px) {
  .page-home .lines__media img {
    aspect-ratio: 16 / 9;
  }
}
@media (min-width: 1024px) {
  .page-home .lines__grid {
    grid-template-columns: minmax(0, 1fr) 264px;
    align-items: stretch;
    gap: clamp(26px, 3vw, 46px);
  }
  .page-home .lines__media img {
    aspect-ratio: auto;
    height: 100%;
  }
  .page-home .line-entry--a {
    margin-right: clamp(0px, 10vw, 140px);
  }
  .page-home .line-entry--b {
    margin-left: clamp(0px, 6vw, 90px);
    margin-right: clamp(0px, 3vw, 40px);
  }
  .page-home .line-entry--c {
    margin-left: clamp(0px, 13vw, 190px);
  }
}

/* ---------- 同步节奏 ---------- */
.page-home .sync {
  overflow: hidden;
}
.page-home .sync__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  filter: saturate(0.6);
  pointer-events: none;
  z-index: 0;
}
.page-home .sync__inner {
  position: relative;
  z-index: 1;
}
.page-home .sync__clock {
  margin-top: clamp(26px, 4vw, 42px);
  padding: 4px 0 4px clamp(16px, 2.4vw, 26px);
  border-left: 3px solid var(--gold);
}
.page-home .sync__clock-label {
  margin: 0;
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  color: var(--muted);
}
.page-home .sync__clock-value {
  margin: 8px 0 10px;
  font-size: clamp(1.8rem, 5.4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.1;
  color: var(--paper);
}
.page-home .sync__clock-state {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--gold);
  letter-spacing: 0.06em;
}
.page-home .sync-track {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.page-home .sync-track__item {
  position: relative;
  padding: 18px 18px 20px;
  background: rgba(14, 42, 34, 0.72);
}
.page-home .sync-track__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--line-soft);
}
.page-home .sync-track__item--target::before {
  background: linear-gradient(90deg, var(--cyan), var(--gold));
}
.page-home .sync-track__day {
  display: block;
  margin-bottom: 8px;
  font-size: var(--fs-mono);
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-home .sync-track__item--target .sync-track__day {
  color: var(--gold);
}
.page-home .sync-track__desc {
  display: block;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--muted);
}
.page-home .sync__points {
  list-style: none;
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.page-home .sync__point {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--muted);
}
.page-home .sync__point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}
.page-home .sync__num {
  color: var(--paper);
  font-size: var(--fs-base);
}
@media (min-width: 760px) {
  .page-home .sync-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    background: var(--line-soft);
    border: 1px solid var(--line-soft);
  }
  .page-home .sync-track__item {
    background: rgba(6, 20, 16, 0.86);
  }
  .page-home .sync__points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 版本对照 ---------- */
.page-home .compare-media {
  margin: clamp(26px, 4vw, 42px) 0 0;
}
.page-home .compare-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.82);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 42px), calc(100% - 42px) 100%, 0 100%);
}
.page-home .compare-media__cap {
  display: block;
  margin-top: 12px;
  font-size: var(--fs-mono);
  letter-spacing: 0.1em;
  color: var(--muted);
}
.page-home .compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(26px, 3.6vw, 40px);
}
.page-home .compare__col {
  padding: clamp(20px, 3vw, 30px);
  background: rgba(6, 20, 16, 0.72);
  border: 1px solid var(--line-soft);
}
.page-home .compare__col--now {
  background: linear-gradient(150deg, rgba(22, 56, 45, 0.9), rgba(6, 20, 16, 0.9));
  border-color: var(--line);
}
.page-home .compare__title {
  margin: 0 0 16px;
  padding-bottom: 12px;
  font-size: var(--fs-mono);
  letter-spacing: 0.16em;
  color: var(--muted);
  border-bottom: 1px solid var(--line-soft);
}
.page-home .compare__col--now .compare__title {
  color: var(--cyan);
  border-bottom-color: var(--line);
}
.page-home .compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-home .compare-list__item {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--muted);
}
.page-home .compare-list__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 2px;
  background: var(--muted);
  opacity: 0.7;
}
.page-home .compare-list--now .compare-list__item {
  color: var(--paper);
}
.page-home .compare-list--now .compare-list__item::before {
  background: var(--cyan);
  opacity: 1;
}
@media (min-width: 860px) {
  .page-home .compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(18px, 2.4vw, 28px);
  }
}

/* ---------- 数据沉淀 ---------- */
.page-home .stats__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(28px, 4vw, 46px);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.page-home .stats__item {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3vw, 34px);
  background: var(--ink);
}
.page-home .stats__item::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(47, 243, 208, 0.16) 1px, transparent 1px);
  background-size: 10px 10px;
  opacity: 0.5;
  pointer-events: none;
}
.page-home .stats__value {
  position: relative;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 8vw, 3.6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}
.page-home .stat__label {
  position: relative;
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--muted);
}
.page-home .stats__plus {
  font-size: 0.55em;
  margin-left: 2px;
  color: var(--gold);
  vertical-align: super;
}
@media (min-width: 640px) {
  .page-home .stats__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1024px) {
  .page-home .stats__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 行动区 ---------- */
.page-home .cta {
  padding-bottom: clamp(56px, 8vw, 110px);
}
.page-home .cta__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(26px, 3.6vw, 42px);
}
.page-home .cta__card {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px) clamp(20px, 3vw, 30px) clamp(22px, 3vw, 30px);
  text-decoration: none;
  background: linear-gradient(120deg, rgba(22, 56, 45, 0.75), rgba(6, 20, 16, 0.6));
  border: 1px solid var(--line-soft);
  border-left: 2px solid rgba(47, 243, 208, 0.3);
  clip-path: polygon(0 0, calc(100% - var(--home-cut)) 0, 100% var(--home-cut), 100% 100%, var(--home-cut) 100%, 0 calc(100% - var(--home-cut)));
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease);
}
.page-home .cta__card:hover,
.page-home .cta__card:focus-visible {
  transform: translate(3px, -3px);
  border-color: var(--line);
  border-left-color: var(--cyan);
  background: linear-gradient(120deg, rgba(22, 56, 45, 0.95), rgba(6, 20, 16, 0.7));
}
.page-home .cta__card-index {
  font-size: var(--fs-mono);
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-home .cta__card-title {
  font-size: var(--fs-md);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-home .cta__card-note {
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--muted);
}
.page-home .cta__foot {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
}
.page-home .cta__contact {
  margin: 0 0 12px;
  font-size: var(--fs-sm);
  line-height: 1.9;
  color: var(--muted);
}
.page-home .cta__more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0;
  font-size: var(--fs-sm);
}
.page-home .cta__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 208, 0.3);
  padding-bottom: 1px;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}
.page-home .cta__more a:hover {
  color: var(--cyan-soft);
  border-color: var(--cyan-soft);
}
.page-home .cta__sep {
  color: var(--muted);
  opacity: 0.6;
}
@media (min-width: 760px) {
  .page-home .cta__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}
@media (min-width: 1024px) {
  .page-home .cta__card {
    padding-block: 34px 32px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-home .line-entry,
  .page-home .cta__card,
  .page-home .line-entry__link,
  .page-home .cta__more a {
    transition: none;
  }
  .page-home .line-entry:hover,
  .page-home .line-entry:focus-within,
  .page-home .cta__card:hover,
  .page-home .cta__card:focus-visible {
    transform: none;
  }
}