.page-home {
  --home-line: 1px solid rgba(8, 24, 38, 0.14);
  --home-line-soft: 1px solid rgba(8, 24, 38, 0.08);
  --home-line-dark: 1px solid rgba(244, 246, 243, 0.16);
  --home-gap: clamp(18px, 3.4vw, 32px);
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-home img {
  max-width: 100%;
}

.page-home .media-frame {
  margin: 0;
  overflow: hidden;
  border-radius: 2px;
}

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

.page-home h1,
.page-home h2,
.page-home h3 {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--ink-900);
}

.page-home p {
  line-height: 1.85;
}

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

.page-home .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-700);
  margin: 0;
}

.home-crumb {
  padding-top: 16px;
  padding-bottom: 4px;
}

/* ---------- 首屏封面 ---------- */
.page-home .cover {
  background-color: var(--ink-900);
  background-image:
    linear-gradient(to right, rgba(55, 226, 194, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(55, 226, 194, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--paper);
  padding: clamp(24px, 5vw, 54px) 0 clamp(26px, 4.5vw, 46px);
  border-bottom: 1px solid rgba(55, 226, 194, 0.34);
}

.page-home .cover__inner {
  display: grid;
  gap: var(--home-gap);
}

.page-home .cover__kicker {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
  margin: 0 0 14px;
}

.page-home .cover h1 {
  font-size: clamp(38px, 8.4vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: #ffffff;
  margin: 0 0 18px;
  text-wrap: balance;
}

.page-home .cover__lede {
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.85;
  color: rgba(244, 246, 243, 0.86);
  max-width: 46ch;
  margin: 0 0 22px;
}

.page-home .cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-home .cover .btn--solid {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--ink-900);
}

.page-home .cover .btn--ghost {
  background: transparent;
  border: 1px solid rgba(244, 246, 243, 0.42);
  color: var(--paper);
}

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

.page-home .cover__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(244, 246, 243, 0.72);
}

.page-home .cover__meta li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.page-home .dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--neon);
}

.page-home .dot--track {
  background: var(--track);
}

.page-home .cover__figure {
  border: var(--home-line-dark);
  background: var(--ink-800);
}

.page-home .cover__note {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: rgba(244, 246, 243, 0.58);
}

.page-home .cover__years {
  border-top: var(--home-line-dark);
  padding-top: 18px;
}

.page-home .cover__years-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-home .year-strip {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.page-home .year-strip a {
  display: block;
  padding: 10px 2px;
  text-align: center;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--paper);
  border: 1px solid rgba(244, 246, 243, 0.2);
  border-radius: 2px;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .year-strip a:hover,
.page-home .year-strip a:focus-visible {
  background: var(--mint);
  border-color: var(--neon);
  color: var(--ink-900);
}

.page-home .year-strip a.is-current {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--ink-900);
  font-weight: 700;
}

/* ---------- 通用区块标题 ---------- */
.page-home .sec-head {
  max-width: 62ch;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-home .sec-head h2 {
  font-size: clamp(25px, 3.6vw, 40px);
  line-height: 1.1;
  margin: 8px 0 10px;
}

.page-home .sec-head__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-700);
}

/* ---------- 年份时间轴 ---------- */
.page-home .timeline {
  padding: clamp(32px, 6vw, 64px) 0;
  background: var(--paper);
}

.page-home .timeline__body {
  display: grid;
  gap: 20px;
}

.page-home .timeline__figure {
  border: var(--home-line);
  background: var(--fog);
}

.page-home .timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--home-line);
}

.page-home .timeline__row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 10px 14px;
  align-items: start;
  padding: 12px 8px;
  border-bottom: var(--home-line-soft);
  transition: background-color 0.2s var(--ease);
}

.page-home .timeline__row:hover {
  background: rgba(55, 226, 194, 0.1);
}

.page-home .timeline__row p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-700);
}

.page-home .timeline__year {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: 0.02em;
}

.page-home .timeline__row.is-current {
  background: rgba(55, 226, 194, 0.14);
  box-shadow: inset 3px 0 0 var(--neon);
}

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

/* ---------- 五步排查 ---------- */
.page-home .steps {
  background: var(--ink-800);
  color: var(--paper);
  padding: clamp(32px, 6vw, 62px) 0;
  border-top: 1px solid rgba(55, 226, 194, 0.28);
  border-bottom: 1px solid rgba(55, 226, 194, 0.28);
}

.page-home .steps .sec-head h2 {
  color: #ffffff;
}

.page-home .steps .sec-head__note {
  color: rgba(244, 246, 243, 0.78);
}

.page-home .steps .eyebrow {
  color: var(--neon);
}

.page-home .steps__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .steps__item {
  background: rgba(8, 24, 38, 0.5);
  border: 1px solid rgba(244, 246, 243, 0.16);
  border-radius: 2px;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-home .steps__item:hover,
.page-home .steps__item:focus-within {
  border-color: rgba(55, 226, 194, 0.6);
  background: rgba(8, 24, 38, 0.72);
}

.page-home .steps__trigger {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 4px 10px;
  width: 100%;
  padding: 14px;
  background: none;
  border: 0;
  color: inherit;
  text-align: left;
  font-family: inherit;
  cursor: pointer;
}

.page-home .steps__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--track);
  padding-top: 3px;
}

.page-home .steps__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #ffffff;
}

.page-home .steps__brief {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 246, 243, 0.7);
}

.page-home .steps__panel {
  padding: 0 14px 16px 54px;
}

.page-home .steps__panel p {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(244, 246, 243, 0.2);
  font-size: 13px;
  line-height: 1.75;
  color: rgba(244, 246, 243, 0.82);
}

.page-home .steps__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-home .steps .btn--ghost {
  background: transparent;
  border: 1px solid rgba(244, 246, 243, 0.42);
  color: var(--paper);
}

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

/* ---------- 不对称双栏 ---------- */
.page-home .split {
  padding: clamp(32px, 6vw, 64px) 0;
  background: var(--paper);
}

.page-home .split__inner {
  display: grid;
  gap: clamp(26px, 4vw, 36px);
}

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

.page-home .entry__card {
  position: relative;
  padding: 18px 18px 16px;
  background: #ffffff;
  border: var(--home-line);
  border-radius: 2px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-home .entry__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background-color 0.2s var(--ease);
}

.page-home .entry__card:hover,
.page-home .entry__card:focus-within {
  border-color: rgba(31, 79, 102, 0.42);
  box-shadow: 0 2px 0 rgba(8, 24, 38, 0.06);
}

.page-home .entry__card:hover::before,
.page-home .entry__card:focus-within::before {
  background: var(--neon);
}

.page-home .entry__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--graphite);
}

.page-home .entry__card h3 {
  font-size: 20px;
  line-height: 1.2;
  margin: 6px 0 8px;
}

.page-home .entry__card p {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--ink-700);
}

.page-home .entry__card a {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--neon);
  padding-bottom: 2px;
}

.page-home .entry__card a:hover {
  color: var(--ink-900);
}

.page-home .entry__figure {
  margin-top: 22px;
  border: var(--home-line);
  background: var(--fog);
}

.page-home .split__aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-home .aside__figure {
  border: var(--home-line);
  background: var(--fog);
}

.page-home .aside__card {
  background: var(--ink-900);
  color: var(--paper);
  padding: 20px 18px;
  border-radius: 2px;
}

.page-home .aside__card h2 {
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.22;
  color: #ffffff;
  margin: 8px 0 10px;
}

.page-home .aside__card h3 {
  font-size: 18px;
  line-height: 1.32;
  color: #ffffff;
  margin: 8px 0 10px;
}

.page-home .aside__card p {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(244, 246, 243, 0.82);
}

.page-home .aside__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
  margin: 0;
}

.page-home .aside__card a {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 226, 194, 0.45);
}

.page-home .aside__card--sub {
  background: var(--ink-800);
  border: 1px solid rgba(55, 226, 194, 0.34);
}

.page-home .aside__contact {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--mint);
  word-break: break-word;
}

/* ---------- 更新节奏与信任 ---------- */
.page-home .cadence {
  background: var(--ink-800);
  color: var(--paper);
  padding: clamp(32px, 6vw, 62px) 0 clamp(26px, 4vw, 40px);
  border-top: 1px solid rgba(55, 226, 194, 0.3);
}

.page-home .cadence__grid {
  display: grid;
  gap: clamp(22px, 4vw, 38px);
}

.page-home .cadence h2 {
  color: #ffffff;
  font-size: clamp(25px, 3.6vw, 38px);
  line-height: 1.12;
  margin: 8px 0 12px;
}

.page-home .cadence__lead p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(244, 246, 243, 0.82);
}

.page-home .cadence__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .cadence__facts li {
  border-left: 2px solid var(--neon);
  padding-left: 14px;
}

.page-home .cadence__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--track);
  margin-bottom: 4px;
}

.page-home .cadence__facts p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(244, 246, 243, 0.78);
}

.page-home .cadence__base {
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid rgba(244, 246, 243, 0.16);
  display: grid;
  gap: 8px;
}

.page-home .cadence__base p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.8;
  color: rgba(244, 246, 243, 0.62);
}

.page-home .cadence__base a {
  color: var(--mint);
  text-decoration: none;
}

.page-home .cadence__base a:hover {
  text-decoration: underline;
}

.page-home .cadence a:focus-visible {
  outline-color: var(--focus-light);
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-home .year-strip {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  .page-home .timeline__body {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
    gap: 28px;
  }

  .page-home .steps__track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .entry {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .entry > li:nth-child(even) {
    margin-top: 22px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 980px) {
  .page-home .cover__inner {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.82fr);
    grid-template-areas:
      "lead plate"
      "years years";
    align-items: start;
    gap: clamp(24px, 3vw, 40px);
  }

  .page-home .cover__lead {
    grid-area: lead;
  }

  .page-home .cover__plate {
    grid-area: plate;
  }

  .page-home .cover__years {
    grid-area: years;
  }

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

  .page-home .steps__trigger {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 16px 14px;
  }

  .page-home .steps__num {
    grid-row: auto;
    padding-top: 0;
    font-size: 12px;
    letter-spacing: 0.1em;
  }

  .page-home .steps__panel {
    padding-left: 14px;
  }

  .page-home .split__inner {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(26px, 3.4vw, 40px);
  }

  .page-home .split__aside {
    position: sticky;
    top: 88px;
  }

  .page-home .cadence__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
}
<<<END>>>