.page-home {
  --home-line: rgba(201, 207, 216, 0.2);
  --home-line-strong: rgba(201, 207, 216, 0.45);
  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
  padding-bottom: clamp(56px, 8vw, 112px);
}

.page-home .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-home a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding-block: clamp(26px, 4vw, 52px) clamp(40px, 6vw, 92px);
  overflow: hidden;
}

.page-home .home-glow {
  position: absolute;
  top: -140px;
  right: -100px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, var(--glow), rgba(88, 140, 255, 0) 68%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  animation: home-drift 12s ease-in-out infinite alternate;
}

@keyframes home-drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-60px, 44px, 0); }
}

.page-home .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-home .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--stone-soft);
}

.page-home .crumb a {
  text-decoration: none;
  border-bottom: 1px solid var(--home-line-strong);
}

.page-home .crumb a:hover,
.page-home .crumb a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-home .hero__eyebrow {
  margin: 0 0 12px;
  font-size: var(--fs-12);
  letter-spacing: 0.22em;
  color: var(--accent);
}

.page-home .hero__lead h1 {
  margin: 0 0 18px;
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-home .hero__lede {
  margin: 0 0 26px;
  max-width: 46ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.76);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.page-home .hero__meta {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--stone-soft);
}

/* 首屏章节预览 */
.page-home .hero-index {
  position: relative;
  padding: clamp(18px, 2.4vw, 30px);
  border: 1px solid var(--home-line-strong);
  background: linear-gradient(160deg, rgba(27, 59, 111, 0.6), rgba(14, 27, 51, 0.94));
  overflow: hidden;
}

.page-home .hero-index::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 44px;
  height: 44px;
  background: linear-gradient(225deg, var(--ink) 50%, rgba(201, 207, 216, 0.2) 50%);
  pointer-events: none;
}

.page-home .hero-index__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .hero-index__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  filter: saturate(0.85);
}

.page-home .hero-index > *:not(.hero-index__media) {
  position: relative;
  z-index: 1;
}

.page-home .hero-index__kicker {
  margin: 0 0 14px;
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--stone-soft);
}

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

.page-home .hero-item > a {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 10px 14px 12px;
  border-top: 1px solid var(--home-line);
  border-left: 2px solid transparent;
  text-decoration: none;
  transition: background var(--speed) ease, border-color var(--speed) ease;
}

.page-home .hero-item:first-child > a {
  border-top: 0;
}

.page-home .hero-item > a:hover,
.page-home .hero-item > a:focus-visible {
  background: rgba(255, 106, 43, 0.08);
  border-left-color: var(--accent);
}

.page-home .hero-item__num {
  padding-top: 3px;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--accent);
}

.page-home .hero-item__body {
  display: block;
  min-width: 0;
}

.page-home .hero-item__title {
  display: block;
  margin-bottom: 4px;
  font-size: var(--fs-16);
  font-weight: 700;
}

.page-home .hero-item__desc {
  display: block;
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--stone-soft);
}

/* ---------- 章节面板 ---------- */
.page-home .chapter {
  padding-block: clamp(36px, 5vw, 76px);
}

.page-home .chapter + .chapter::before {
  content: "";
  display: block;
  width: 64px;
  height: 2px;
  margin: 0 auto clamp(24px, 4vw, 44px);
  background: var(--clay);
}

.page-home .chapter__head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-home .ch-label {
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--ink);
  background: var(--accent);
}

.page-home .chapter h2 {
  margin: 0;
  font-size: clamp(23px, 4vw, 36px);
  line-height: 1.3;
  font-weight: 900;
}

.page-home .prose p {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.78);
}

.page-home .prose p:last-child {
  margin-bottom: 0;
}

.page-home .split {
  display: grid;
  gap: 28px;
}

.page-home .chapter__more {
  margin: 20px 0 0;
}

.page-home .link-inline {
  display: inline-block;
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 43, 0.45);
  padding-bottom: 2px;
}

.page-home .link-inline:hover,
.page-home .link-inline:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-home .aside-note {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--clay);
  background: rgba(196, 99, 58, 0.12);
}

.page-home .aside-note p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
}

/* 三步 */
.page-home .steps {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 12px;
}

.page-home .steps li {
  position: relative;
  padding: 14px 16px 14px 56px;
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--clay);
  background: rgba(27, 59, 111, 0.35);
}

.page-home .steps li::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  left: 16px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-home .steps strong {
  display: block;
  margin-bottom: 5px;
  font-size: var(--fs-16);
}

.page-home .steps span {
  display: block;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--stone-soft);
}

/* 四层索引 */
.page-home .layers {
  display: grid;
  gap: 12px;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
}

.page-home .layers li {
  padding: 12px 14px;
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--accent);
}

.page-home .layers b {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--accent);
}

.page-home .layers p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.74);
}

/* 问题列表 */
.page-home .q-list {
  margin: 0 0 4px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-home .q-list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}

.page-home .q-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: 10px;
  height: 2px;
  background: var(--accent);
}

/* 图片槽位 */
.page-home .fig {
  position: relative;
  margin: 0;
  border: 1px solid var(--home-line-strong);
  border-left: 3px solid var(--clay);
  background: var(--ink-2);
}

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

.page-home .fig__cap {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 4px 9px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--paper);
  background: rgba(9, 18, 35, 0.82);
}

/* 资料规格卡 */
.page-home .fact-cards {
  display: grid;
  gap: 12px;
  align-self: start;
}

.page-home .fact-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--moss);
  background: rgba(27, 59, 111, 0.32);
}

.page-home .fact-card__num {
  font-size: var(--fs-24);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.02em;
}

.page-home .fact-card__text {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--stone-soft);
}

/* 底部导航示意 */
.page-home .navmap {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--home-line);
  border-left: 1px solid var(--home-line);
}

.page-home .navmap li {
  position: relative;
  padding: 13px 14px;
  border-right: 1px solid var(--home-line);
  border-bottom: 1px solid var(--home-line);
}

.page-home .navmap li.is-current {
  background: rgba(255, 106, 43, 0.07);
}

.page-home .navmap li.is-current::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  bottom: 13px;
  width: 3px;
  background: var(--accent);
}

.page-home .navmap li.is-current .navmap__title {
  color: var(--accent);
}

.page-home .navmap__title {
  display: block;
  margin-bottom: 5px;
  font-size: var(--fs-14);
  font-weight: 700;
}

.page-home .navmap__sub {
  display: block;
  font-size: var(--fs-12);
  line-height: 1.55;
  color: var(--stone-soft);
}

/* 联系渠道 */
.page-home .contact-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .contact-list li {
  padding: 13px 16px;
  border-left: 3px solid var(--accent);
  background: rgba(27, 59, 111, 0.42);
}

.page-home .contact-list__key {
  display: block;
  margin-bottom: 6px;
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--stone-soft);
}

.page-home .contact-list__val {
  display: block;
  font-size: var(--fs-16);
  font-weight: 700;
  word-break: break-word;
}

.page-home .contact-list__note {
  display: block;
  margin-top: 4px;
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--stone-soft);
}

/* 更新动态 */
.page-home .metrics {
  display: grid;
  gap: 1px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
  background: var(--home-line);
  border: 1px solid var(--home-line);
}

.page-home .metrics li {
  padding: 18px 16px;
  background: var(--ink);
}

.page-home .metrics__num {
  display: block;
  margin-bottom: 6px;
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--accent);
}

.page-home .metrics__label {
  display: block;
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--stone-soft);
}

/* ---------- 焦点与减弱动效 ---------- */
.page-home a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-glow {
    animation: none;
  }
  .page-home .hero-item > a {
    transition: none;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 600px) {
  .page-home .layers {
    grid-template-columns: 1fr 1fr;
  }
  .page-home .navmap {
    grid-template-columns: 1fr 1fr;
  }
  .page-home .metrics {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 4.2fr) minmax(0, 7.8fr);
    gap: 48px;
    align-items: start;
  }

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

  .page-home .split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 44px;
    align-items: start;
  }

  .page-home .split--flip > *:first-child {
    order: 1;
  }

  .page-home .navmap {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

  .page-home .fact-cards {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1100px) {
  .page-home .hero-index__list {
    display: grid;
    gap: 0;
  }
  .page-home .hero-item > a {
    padding-block: 15px;
  }
}
<<<END>>>