.page-home {
  --home-gap: clamp(12px, 1.8vw, 20px);
  --home-rule: 1px solid var(--line-soft);
  --home-card: rgba(11, 31, 51, .88);
  --home-soft-cyan: rgba(54, 241, 224, .14);
  --home-soft-gold: rgba(243, 188, 87, .14);
  background: var(--ink-900);
  color: var(--text-soft);
  overflow-x: clip;
}

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

.page-home .container {
  width: min(100% - 2 * var(--gutter), var(--max));
  margin-inline: auto;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  padding: clamp(18px, 4vw, 38px) 0 clamp(40px, 6vw, 76px);
  border-bottom: var(--home-rule);
  background:
    radial-gradient(120% 92% at 80% 0%, rgba(18, 58, 90, .78) 0%, rgba(6, 17, 31, 0) 62%),
    var(--ink-950);
}

.page-home .hero__texture {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  z-index: 1;
}

.page-home .hero .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 42px);
}

.page-home .hero__rail {
  display: grid;
  gap: 12px;
  align-content: start;
  padding-left: 14px;
  border-left: 1px solid rgba(54, 241, 224, .28);
}

.page-home .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .rail-list__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 0;
  font-size: 13px;
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 68, 92, .45);
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-home .rail-list__link .mono {
  font-size: 11px;
  color: var(--muted);
}

.page-home .rail-list__link:hover {
  color: var(--cyan);
  padding-left: 5px;
}

.page-home .rail-note {
  margin: 4px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.page-home .hero__eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-home .hero__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: clamp(38px, 9vw, 88px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-home .hero__lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(20px, 2.6vw, 28px) 0 clamp(26px, 3.4vw, 40px);
}

/* ---------- 首屏焦点板 ---------- */
.page-home .focus-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
}

.page-home .focus-card {
  position: relative;
  padding: clamp(16px, 2.2vw, 22px);
  background: var(--home-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-home .focus-card::after {
  content: "";
  position: absolute;
  inset: 7px -7px -7px 7px;
  border: 1px solid rgba(36, 68, 92, .5);
  border-radius: var(--radius-m);
  z-index: -1;
  pointer-events: none;
}

.page-home .focus-card:hover {
  transform: translateY(-4px);
  border-color: rgba(54, 241, 224, .48);
  box-shadow: var(--glow);
}

.page-home .focus-card__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-home .focus-card__stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 8px;
}

.page-home .focus-card__num {
  font-family: var(--font-mono);
  font-size: clamp(32px, 5vw, 46px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-home .focus-card--period .focus-card__num {
  color: var(--gold);
}

.page-home .focus-card__unit {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.page-home .focus-card__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-home .focus-card__title {
  margin: 12px 0 10px;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--paper);
}

.page-home .focus-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 241, 224, .4);
  padding-bottom: 2px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-home .focus-card__link:hover {
  color: var(--paper);
  border-color: var(--paper);
}

.page-home .focus-card--period {
  border-color: rgba(243, 188, 87, .38);
}

.page-home .focus-card--period:hover {
  border-color: rgba(243, 188, 87, .7);
  box-shadow: 0 0 0 1px rgba(243, 188, 87, .3), 0 18px 44px -30px rgba(243, 188, 87, .6);
}

.page-home .focus-card__chips {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-home .focus-card__chips .tag {
  font-size: 11px;
}

.page-home .period-toggle {
  margin: 0 0 12px;
  border-top: 1px dashed rgba(243, 188, 87, .3);
  padding-top: 10px;
}

.page-home .period-toggle summary {
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  color: var(--gold);
  padding-right: 20px;
  position: relative;
  transition: color .18s var(--ease);
}

.page-home .period-toggle summary::-webkit-details-marker {
  display: none;
}

.page-home .period-toggle summary::after {
  content: "＋";
  position: absolute;
  right: 0;
  top: -1px;
  font-family: var(--font-mono);
}

.page-home .period-toggle[open] summary::after {
  content: "－";
}

.page-home .period-toggle summary:hover {
  color: var(--paper);
}

.page-home .period-toggle p {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 通用章节 ---------- */
.page-home .section {
  padding: clamp(44px, 7vw, 90px) 0;
  border-bottom: var(--home-rule);
}

.page-home .section:last-of-type {
  border-bottom: 0;
}

.page-home .section__head {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-home .section__index {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--teal);
}

.page-home .section__title {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home .home-lead {
  margin: 14px 0 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-home .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
}

/* ---------- 分类入口 ---------- */
.page-home .home-cat {
  background: linear-gradient(180deg, rgba(11, 31, 51, .55) 0%, rgba(6, 17, 31, 0) 70%);
}

.page-home .skill-path {
  list-style: none;
  margin: 0;
  padding: 0 0 0 4px;
  display: grid;
  gap: 20px;
  position: relative;
}

.page-home .skill-path::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 8px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(54, 241, 224, .12) 100%);
}

.page-home .skill-path__step {
  position: relative;
  padding-left: 42px;
}

.page-home .skill-path__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 31px;
  height: 31px;
  font-size: 11px;
  color: var(--cyan);
  background: var(--ink-900);
  border: 1px solid rgba(54, 241, 224, .45);
  border-radius: 50%;
}

.page-home .skill-path__title {
  margin: 2px 0 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--paper);
}

.page-home .skill-path__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .cat-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 28px);
}

.page-home .cat-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-home .cat-switch__tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text-soft);
  background: rgba(11, 31, 51, .7);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  cursor: pointer;
  transition: color .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}

.page-home .cat-switch__tab .mono {
  font-size: 10px;
  color: var(--muted);
}

.page-home .cat-switch__tab:hover {
  color: var(--paper);
  border-color: rgba(54, 241, 224, .5);
  transform: translateY(-2px);
}

.page-home .cat-switch__input:checked + .cat-switch__tab {
  color: var(--ink-950);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-home .cat-switch__input:checked + .cat-switch__tab .mono {
  color: rgba(4, 12, 22, .62);
}

.page-home .cat-switch__input:focus-visible + .cat-switch__tab {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-home .cat-switch__panels {
  flex: 1 0 100%;
  margin-top: 8px;
}

.page-home .cat-switch__panel {
  display: none;
  gap: 12px;
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: var(--radius-m);
}

.page-home .cat-switch__panel > p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-soft);
  max-width: 62ch;
}

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

.page-home .cat-switch__meta {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-home .cat-switch__panel .btn--quiet {
  justify-self: start;
}

.page-home .cat-switch__panel .btn--quiet:hover {
  color: var(--cyan);
}

.page-home #cat-01:checked ~ .cat-switch__panels > .cat-switch__panel:nth-child(1),
.page-home #cat-02:checked ~ .cat-switch__panels > .cat-switch__panel:nth-child(2),
.page-home #cat-03:checked ~ .cat-switch__panels > .cat-switch__panel:nth-child(3),
.page-home #cat-04:checked ~ .cat-switch__panels > .cat-switch__panel:nth-child(4),
.page-home #cat-05:checked ~ .cat-switch__panels > .cat-switch__panel:nth-child(5),
.page-home #cat-06:checked ~ .cat-switch__panels > .cat-switch__panel:nth-child(6),
.page-home #cat-07:checked ~ .cat-switch__panels > .cat-switch__panel:nth-child(7) {
  display: grid;
}

.page-home .media-frame {
  margin: 0;
  background: var(--sea);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

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

.page-home .media-frame--wide img {
  aspect-ratio: 21 / 9;
}

.page-home .media-frame--tall img {
  aspect-ratio: 4 / 3;
}

.page-home .media-frame__caption {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid rgba(36, 68, 92, .6);
  background: rgba(6, 17, 31, .55);
}

.page-home .split__main > .media-frame {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 时间轴 ---------- */
.page-home .timeline-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-home .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-home .timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(54, 241, 224, .85) 0%, rgba(54, 241, 224, .06) 100%);
}

.page-home .timeline__item {
  position: relative;
  padding: 0 0 clamp(20px, 3vw, 28px) 30px;
}

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 5px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: var(--ink-900);
}

.page-home .timeline__item--gold::before {
  border-color: var(--gold);
  box-shadow: 0 0 0 4px var(--home-soft-gold);
}

.page-home .timeline__meta {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--teal);
}

.page-home .timeline__item--gold .timeline__meta {
  color: var(--gold);
}

.page-home .timeline__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-soft);
  max-width: 60ch;
}

.page-home .timeline-figure {
  align-self: start;
}

/* ---------- 第 12 期 ---------- */
.page-home .home-period {
  background: linear-gradient(180deg, rgba(18, 58, 90, .4) 0%, rgba(6, 17, 31, 0) 78%);
}

.page-home .period-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
}

.page-home .period-main {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
  align-content: start;
}

.page-home .period-slots {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--home-gap);
}

.page-home .period-slot {
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid rgba(54, 241, 224, .55);
  border-radius: var(--radius-s);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-home .period-slot:hover {
  transform: translateY(-3px);
  border-color: rgba(54, 241, 224, .5);
}

.page-home .period-slot--gold {
  border-left-color: var(--gold);
  background: linear-gradient(90deg, rgba(243, 188, 87, .1) 0%, rgba(11, 31, 51, .95) 42%);
}

.page-home .period-slot__num {
  display: block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
  margin-bottom: 4px;
}

.page-home .period-slot--gold .period-slot__num {
  color: var(--gold);
}

.page-home .period-slot__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 500;
  color: var(--paper);
}

.page-home .period-slot__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-home .period-extra {
  padding: clamp(16px, 2.4vw, 22px);
  border: 1px dashed rgba(54, 241, 224, .34);
  border-radius: var(--radius-m);
}

.page-home .period-extra__title {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--cyan);
}

.page-home .period-extra p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-home .period-figure {
  align-self: start;
}

/* ---------- 帮助 ---------- */
.page-home .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
}

.page-home .help-topics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-home .help-topic {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 14px;
  font-size: 15px;
  color: var(--paper);
  background: rgba(11, 31, 51, .7);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

.page-home .help-topic:hover {
  border-color: rgba(54, 241, 224, .45);
  transform: translateY(-2px);
}

.page-home .help-topic .mono {
  font-size: 11px;
  color: var(--teal);
}

.page-home .help-pinned__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-home .help-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-home .help-list li {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .help-list__link {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 2px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-soft);
  text-decoration: none;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-home .help-list__link span {
  color: var(--cyan);
  flex: none;
}

.page-home .help-list__link:hover {
  color: var(--cyan);
  padding-left: 8px;
}

/* ---------- 合作 ---------- */
.page-home .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-home .partner-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 24px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-home .partner-card:hover {
  transform: translateY(-4px);
  border-color: rgba(54, 241, 224, .48);
  box-shadow: var(--glow);
}

.page-home .partner-card__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-home .partner-card__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--paper);
}

.page-home .partner-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-home .support-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: clamp(18px, 2.6vw, 26px);
  background: rgba(4, 12, 22, .7);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  border-radius: var(--radius-m);
}

.page-home .support-strip__key {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-home .support-strip__value {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-home .support-strip__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .focus-board {
    grid-template-columns: repeat(6, 1fr);
  }

  .page-home .focus-card--wide {
    grid-column: span 6;
  }

  .page-home .focus-card--period,
  .page-home .focus-card--stat,
  .page-home .focus-card--cat,
  .page-home .focus-card--help {
    grid-column: span 3;
  }

  .page-home .period-slots {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-home .partner-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-home .support-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-home .support-strip__actions {
    grid-column: 1 / -1;
  }

  .page-home .help-grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  }
}

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(150px, 200px) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .hero__rail {
    position: sticky;
    top: 24px;
  }

  .page-home .split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-home .split__rail {
    position: sticky;
    top: 24px;
  }

  .page-home .timeline-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .period-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-home .support-strip {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-home .focus-card--wide {
    grid-column: span 4;
  }

  .page-home .focus-card--period {
    grid-column: span 2;
  }

  .page-home .focus-card--stat,
  .page-home .focus-card--cat,
  .page-home .focus-card--help {
    grid-column: span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .focus-card,
  .page-home .partner-card,
  .page-home .cat-switch__tab,
  .page-home .rail-list__link,
  .page-home .help-list__link,
  .page-home .period-slot,
  .page-home .help-topic {
    transition: none;
  }

  .page-home .focus-card:hover,
  .page-home .partner-card:hover,
  .page-home .cat-switch__tab:hover,
  .page-home .period-slot:hover,
  .page-home .help-topic:hover {
    transform: none;
  }
}
<<<END>>>