.page-home {
  --home-gap: 14px;
  --home-section-gap: 72px;
}

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

.page-home [data-chapter] {
  scroll-margin-top: 120px;
}

.page-home .home-shell {
  width: var(--shell);
  margin-inline: auto;
  padding: 26px 0 80px;
  display: grid;
  gap: 32px;
}

/* ---------- 左侧索引轨道 ---------- */

.page-home .home-rail {
  border-left: 1px solid var(--line);
  padding-left: 16px;
}

.page-home .home-rail-title {
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  letter-spacing: 0.22em;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-home .rail-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .rail-link {
  display: block;
  padding: 7px 12px;
  font-size: var(--fs-8);
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--nebula);
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-home .rail-link:hover,
.page-home .rail-link[aria-current="true"] {
  color: var(--ink);
  border-color: var(--cyan);
  background: rgba(53, 224, 208, 0.10);
}

.page-home .rail-top {
  margin-top: 20px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  padding: 8px 14px;
  cursor: pointer;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .rail-top:hover {
  color: var(--gold);
  border-color: var(--gold);
}

/* ---------- 首屏拼贴 ---------- */

.page-home .home-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--nebula);
  padding: 28px 20px 30px;
}

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

.page-home .home-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.page-home .home-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 76% 14%, rgba(123, 77, 255, 0.34), transparent 58%),
    radial-gradient(circle at 8% 88%, rgba(53, 224, 208, 0.20), transparent 52%),
    linear-gradient(180deg, rgba(7, 11, 27, 0.62), rgba(7, 11, 27, 0.94));
}

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

.page-home .home-coord {
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0 0 16px;
}

.page-home h1 {
  font-size: var(--fs-1);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 18px;
  max-width: 20ch;
}

.page-home .home-lede {
  font-size: var(--fs-6);
  line-height: 1.8;
  color: var(--muted);
  margin: 0 0 30px;
  max-width: 60ch;
}

.page-home .home-collage {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 26px;
}

.page-home .collage-cell {
  position: relative;
  background: rgba(14, 21, 48, 0.9);
  padding: 22px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background 220ms var(--ease);
}

.page-home .collage-cell::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--galaxy);
  transition: background 220ms var(--ease);
}

.page-home .collage-cell:hover {
  background: rgba(21, 30, 62, 0.94);
}

.page-home .collage-cell:hover::before {
  background: var(--cyan);
}

.page-home .collage-code {
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-home .collage-title {
  font-size: var(--fs-5);
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  margin: 0;
}

.page-home .collage-desc {
  font-size: var(--fs-7);
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

.page-home .collage-link {
  margin-top: auto;
  padding-top: 6px;
  font-size: var(--fs-8);
  letter-spacing: 0.08em;
  color: var(--gold);
  text-decoration: none;
  transition: color 200ms var(--ease);
}

.page-home .collage-link:hover {
  color: var(--cyan);
}

.page-home .home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 区块通用 ---------- */

.page-home .home-section {
  margin-top: var(--home-section-gap);
}

.page-home .home-head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
  margin-bottom: 26px;
}

.page-home .home-head-code {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-home .home-head h2 {
  font-size: var(--fs-3);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 12px;
  max-width: 26ch;
}

.page-home .home-head p {
  font-size: var(--fs-7);
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
  max-width: 66ch;
}

/* ---------- 分区总览 ---------- */

.page-home .zone-map {
  margin: 0 0 28px;
}

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

.page-home .zone-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 2px solid var(--galaxy);
  background: linear-gradient(158deg, rgba(14, 21, 48, 0.92), rgba(7, 11, 27, 0.94));
  padding: 20px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-top-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-home .zone-card::after {
  content: "";
  position: absolute;
  right: -34px;
  top: -46px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(123, 77, 255, 0.22), transparent 70%);
  pointer-events: none;
}

.page-home .zone-card > * {
  position: relative;
  z-index: 1;
}

.page-home .zone-card:nth-child(2) { border-top-color: var(--cyan); }
.page-home .zone-card:nth-child(3) { border-top-color: var(--gold); }
.page-home .zone-card:nth-child(5) { border-top-color: var(--wine); }
.page-home .zone-card:nth-child(6) { border-top-color: var(--teal); }

.page-home .zone-card:hover {
  border-top-color: var(--cyan);
  transform: translateY(-2px);
}

.page-home .zone-code {
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  letter-spacing: 0.26em;
  color: var(--cyan);
  margin: 0;
}

.page-home .zone-name {
  font-size: var(--fs-5);
  line-height: 1.35;
  color: var(--ink);
  margin: 0;
}

.page-home .zone-desc {
  font-size: var(--fs-7);
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

.page-home .zone-more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  color: var(--gold);
  padding: 6px 0;
}

.page-home .zone-more summary::-webkit-details-marker {
  display: none;
}

.page-home .zone-more summary::before {
  content: "+ ";
  color: var(--cyan);
}

.page-home .zone-more[open] summary::before {
  content: "− ";
}

.page-home .zone-list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-home .zone-list li {
  font-size: var(--fs-8);
  color: var(--muted);
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
}

.page-home .zone-count {
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  color: var(--cyan);
  margin: 4px 0 0;
}

.page-home .zone-copy {
  align-self: flex-start;
  margin-top: 4px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  padding: 6px 12px;
  cursor: pointer;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .zone-copy:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-home .zone-copy[data-copied="true"] {
  color: var(--gold);
  border-color: var(--gold);
}

/* ---------- 目录调整 ---------- */

.page-home .changes-split {
  display: grid;
  gap: 26px;
}

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

.page-home .changes-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.page-home .changes-list li {
  position: relative;
  padding: 0 0 18px 26px;
  font-size: var(--fs-7);
  line-height: 1.8;
  color: var(--muted);
}

.page-home .changes-list li::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: -4px;
  width: 1px;
  background: var(--line-mid);
}

.page-home .changes-list li:last-child::before {
  display: none;
}

.page-home .changes-list li::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--wine);
  border: 1px solid var(--gold);
}

.page-home .changes-list strong {
  color: var(--ink);
  font-weight: 700;
}

.page-home .text-link {
  display: inline-block;
  margin: 0 20px 8px 0;
  font-size: var(--fs-7);
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  padding-bottom: 2px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .text-link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 换机登录 ---------- */

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

.page-home .home-steps {
  counter-reset: hstep;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .home-step {
  counter-increment: hstep;
  position: relative;
  padding: 0 0 22px 54px;
  font-size: var(--fs-7);
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-step::before {
  content: "0" counter(hstep);
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-cyan);
  background: rgba(11, 59, 60, 0.42);
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  color: var(--cyan);
}

.page-home .home-step::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 38px;
  bottom: 0;
  width: 1px;
  background: var(--line-mid);
}

.page-home .home-step:last-child {
  padding-bottom: 0;
}

.page-home .home-step:last-child::after {
  display: none;
}

.page-home .home-step-title {
  display: block;
  font-size: var(--fs-6);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 5px;
}

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

.page-home .signin-more {
  margin: 26px 0 0;
}

/* ---------- 支持通道 ---------- */

.page-home .support {
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 10% 16%, rgba(11, 59, 60, 0.82), transparent 60%),
    radial-gradient(circle at 92% 88%, rgba(75, 46, 158, 0.36), transparent 58%),
    linear-gradient(150deg, rgba(14, 21, 48, 0.96), rgba(7, 11, 27, 0.98));
  padding: 26px 20px 30px;
}

.page-home .home-head--plain {
  border-bottom-color: var(--line-mid);
}

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

.page-home .coord-card {
  border-left: 2px solid var(--cyan);
  background: rgba(7, 11, 27, 0.62);
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-home .coord-card:nth-child(2) { border-left-color: var(--gold); }
.page-home .coord-card:nth-child(3) { border-left-color: var(--galaxy); }

.page-home .coord-label {
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0;
}

.page-home .coord-value {
  font-size: var(--fs-6);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  margin: 0;
  word-break: break-word;
}

.page-home .coord-note {
  font-size: var(--fs-8);
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

.page-home .coord-copy {
  align-self: flex-start;
  margin-top: 4px;
  background: transparent;
  border: 1px solid var(--line-mid);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--fs-8);
  padding: 6px 12px;
  cursor: pointer;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .coord-copy:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-home .coord-copy[data-copied="true"] {
  color: var(--gold);
  border-color: var(--gold);
}

.page-home .support-foot {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.page-home .support-note {
  flex: 1 1 300px;
  font-size: var(--fs-7);
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-home .home-hero {
    padding: 40px 36px 44px;
  }

  .page-home .home-collage {
    grid-template-columns: 1.4fr 1fr;
    grid-template-rows: auto auto;
  }

  .page-home .collage-cell:first-child {
    grid-row: 1 / span 2;
  }

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

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

  .page-home .support {
    padding: 38px 34px 42px;
  }
}

@media (min-width: 860px) {
  .page-home .changes-split {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    gap: 34px;
    align-items: start;
  }

  .page-home .signin-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 40px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-home {
    --home-section-gap: 96px;
  }

  .page-home .home-shell {
    grid-template-columns: minmax(172px, 218px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding-top: 34px;
  }

  .page-home .home-rail {
    position: sticky;
    top: 104px;
    border-left: 1px solid var(--line-mid);
    padding-left: 0;
  }

  .page-home .home-rail-title {
    padding-left: 16px;
  }

  .page-home .rail-nav {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-home .rail-link {
    border: 0;
    border-left: 2px solid var(--line);
    background: transparent;
    padding: 10px 0 10px 16px;
    font-size: var(--fs-7);
  }

  .page-home .rail-link:hover,
  .page-home .rail-link[aria-current="true"] {
    background: rgba(123, 77, 255, 0.10);
  }

  .page-home .rail-top {
    margin-left: 16px;
  }

  .page-home .home-hero {
    padding: 48px 44px 52px;
  }

  .page-home .zone-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 1280px) {
  .page-home .zone-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .zone-card:nth-child(1),
  .page-home .zone-card:nth-child(6) {
    grid-column: span 1;
  }
}
<<<PAGE_CSS_END>>>