.page-home {
  display: block;
}

/* ---------- 首屏 ---------- */
.page-home .hero-home {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(56px, 10vw, 116px) 0 clamp(52px, 8vw, 96px);
  background: var(--ink);
}

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

.page-home .hero-sky img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .4;
}

.page-home .hero-home::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(178deg, rgba(4, 7, 15, .48) 0%, rgba(4, 7, 15, .78) 58%, var(--ink) 100%);
  pointer-events: none;
}

.page-home .hero-shard {
  position: absolute;
  inset: -14% -10% auto -16%;
  height: min(90%, 700px);
  z-index: 2;
  background:
    linear-gradient(116deg, rgba(123, 92, 255, .36) 0%, rgba(11, 18, 43, .88) 44%, rgba(4, 7, 15, .18) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 56%, 0 96%);
  pointer-events: none;
}

.page-home .hero-home::before {
  content: "";
  position: absolute;
  top: -24vmin;
  right: -20vmin;
  z-index: 2;
  width: min(72vmin, 620px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 60%, rgba(55, 227, 216, .34) 74%, rgba(123, 92, 255, .58) 90%, transparent 100%);
  -webkit-mask: radial-gradient(circle, transparent 0 56%, #000 57% 100%);
  mask: radial-gradient(circle, transparent 0 56%, #000 57% 100%);
  animation: home-orbit-spin 46s linear infinite;
  pointer-events: none;
}

.page-home .hero-grid {
  position: relative;
  z-index: 3;
  display: grid;
  gap: clamp(30px, 5vw, 52px);
  align-items: end;
}

.page-home .hero-copy h1 {
  margin: 14px 0 18px;
  font-size: var(--fs-display);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -.02em;
  color: var(--white);
  text-shadow: 0 0 34px rgba(55, 227, 216, .28);
}

.page-home .hero-copy .lede {
  margin: 0 0 26px;
  max-width: 30ch;
  font-size: var(--fs-md);
  line-height: 1.6;
  color: var(--silver);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-home .hero-aside {
  padding: 20px 22px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(9px);
}

.page-home .aside-label {
  margin: 0 0 6px;
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--orbit);
}

.page-home .aside-value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-md);
  color: var(--white);
}

.page-home .aside-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--violet-2);
}

.page-home .aside-dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(55, 227, 216, .8);
  animation: home-pulse 4.5s ease-in-out infinite;
}

/* ---------- 通用区块 ---------- */
.page-home .section {
  padding-block: clamp(64px, 9vw, 122px);
}

.page-home .section-head {
  max-width: 620px;
  margin-bottom: clamp(30px, 4.5vw, 52px);
}

.page-home .section-head h2 {
  margin: 10px 0 14px;
  font-size: clamp(1.85rem, 4vw, 2.9rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--white);
  text-shadow: 0 0 26px rgba(55, 227, 216, .16);
}

.page-home .section-head .lede {
  margin: 0;
  font-size: var(--fs-base);
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 新装三步 ---------- */
.page-home .section-steps {
  background:
    radial-gradient(72% 58% at 12% 8%, rgba(123, 92, 255, .16), transparent 66%),
    var(--ink);
}

.page-home .steps-layout {
  display: grid;
  gap: clamp(32px, 6vw, 70px);
  align-items: center;
}

.page-home .steps-figure {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-home .steps-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .steps-body h2 {
  margin: 10px 0 22px;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--white);
}

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

.page-home .step-list > li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 0 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-home .step-tag {
  grid-row: 1 / span 2;
  align-self: start;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(55, 227, 216, .45);
  background: rgba(55, 227, 216, .1);
  color: var(--cyan);
  font-size: var(--fs-sm);
}

.page-home .step-list h3 {
  margin: 4px 0 6px;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--white);
}

.page-home .step-list p {
  margin: 0;
  font-size: var(--fs-base);
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 两个版本 ---------- */
.page-home .section-versions {
  background:
    radial-gradient(64% 62% at 88% 4%, rgba(55, 227, 216, .12), transparent 62%),
    var(--ink-2);
}

.page-home .versions-layout {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  align-items: start;
}

.page-home .version-switch {
  display: inline-flex;
  gap: 6px;
  padding: 6px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: rgba(4, 7, 15, .55);
  margin-bottom: 22px;
}

.page-home .seg-btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: 10px 24px;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--orbit);
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: .02em;
  transition: background var(--t), color var(--t);
}

.page-home .seg-btn[aria-selected="true"] {
  background: rgba(55, 227, 216, .14);
  color: var(--cyan);
  box-shadow: inset 0 0 0 1px rgba(55, 227, 216, .5);
}

.page-home .seg-btn:hover {
  color: var(--white);
}

.page-home .version-panel[hidden] {
  display: none;
}

.page-home .version-specs {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-home .version-specs > div {
  display: grid;
  gap: 6px;
  padding: 18px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: linear-gradient(150deg, rgba(18, 26, 56, .88), rgba(4, 7, 15, .5));
}

.page-home .version-specs dt {
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--orbit);
}

.page-home .version-specs dd {
  margin: 0;
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--silver);
}

.page-home .version-specs dd.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  color: var(--white);
}

.page-home .versions-link {
  margin: 24px 0 0;
  font-size: var(--fs-base);
}

.page-home .versions-link a {
  color: var(--violet-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(183, 166, 255, .45);
  padding-bottom: 2px;
}

.page-home .versions-link a:hover {
  color: var(--cyan);
  border-bottom-color: rgba(55, 227, 216, .55);
}

.page-home .versions-figure {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-home .versions-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 5;
  object-fit: cover;
}

/* ---------- 星图索引 ---------- */
.page-home .atlas-wrap {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) clamp(20px, 4vw, 48px);
  background: linear-gradient(160deg, rgba(11, 18, 43, .96), rgba(4, 7, 15, .94));
  border: 1px solid var(--line);
}

.page-home .atlas-sky {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
}

.page-home .atlas-sky img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
}

.page-home .atlas-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(4, 7, 15, .55), rgba(4, 7, 15, .86));
  pointer-events: none;
}

.page-home .atlas-web {
  position: absolute;
  left: 50%;
  top: 46%;
  z-index: 1;
  width: min(760px, 92%);
  transform: translate(-50%, -50%);
  opacity: .7;
  pointer-events: none;
}

.page-home .atlas-nodes {
  position: relative;
  z-index: 2;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-home .atlas-node > a {
  display: grid;
  gap: 8px;
  height: 100%;
  padding: 26px 24px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(18, 26, 56, .9), rgba(4, 7, 15, .78));
  text-decoration: none;
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}

.page-home .atlas-node > a:hover,
.page-home .atlas-node > a:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(55, 227, 216, .6);
  box-shadow: var(--glow-cyan);
}

.page-home .atlas-index {
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-home .atlas-name {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--white);
}

.page-home .atlas-count {
  font-size: var(--fs-base);
  color: var(--violet-2);
}

.page-home .atlas-tip {
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--silver);
}

/* ---------- 换机 ---------- */
.page-home .section-switch {
  background:
    radial-gradient(58% 62% at 8% 20%, rgba(123, 92, 255, .18), transparent 66%),
    var(--ink);
}

.page-home .switch-layout {
  display: grid;
  gap: clamp(30px, 5vw, 58px);
  align-items: start;
}

.page-home .switch-copy h2 {
  margin: 10px 0 24px;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 800;
  line-height: 1.16;
  color: var(--white);
}

.page-home .switch-steps {
  counter-reset: sw;
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .switch-steps li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  background: rgba(18, 26, 56, .6);
  color: var(--silver);
  font-size: var(--fs-base);
}

.page-home .switch-steps .mono {
  flex: 0 0 auto;
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  color: var(--cyan);
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: rgba(55, 227, 216, .1);
}

.page-home .switch-note {
  padding: 26px 26px 28px;
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(18, 26, 56, .92), rgba(4, 7, 15, .72));
}

.page-home .note-title {
  margin: 0 0 12px;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--white);
}

.page-home .switch-note p {
  margin: 0 0 14px;
  font-size: var(--fs-base);
  line-height: 1.75;
  color: var(--silver);
}

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

.page-home .note-link a {
  color: var(--violet-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(183, 166, 255, .45);
  padding-bottom: 2px;
}

.page-home .note-link a:hover {
  color: var(--cyan);
  border-bottom-color: rgba(55, 227, 216, .55);
}

/* ---------- 更新记录 ---------- */
.page-home .section-log {
  background: var(--ink-2);
}

.page-home .log-list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-home .log-list > li {
  display: grid;
  gap: 8px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .log-no {
  font-size: var(--fs-sm);
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-home .log-stage {
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--orbit);
}

.page-home .log-list p {
  margin: 0;
  font-size: var(--fs-base);
  line-height: 1.72;
  color: var(--silver);
}

.page-home .log-more {
  margin: 0;
  font-size: var(--fs-base);
}

.page-home .log-more a {
  color: var(--violet-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(183, 166, 255, .45);
  padding-bottom: 2px;
}

.page-home .log-more a:hover {
  color: var(--cyan);
  border-bottom-color: rgba(55, 227, 216, .55);
}

/* ---------- 联系 ---------- */
.page-home .section-help {
  background:
    radial-gradient(70% 70% at 86% 90%, rgba(55, 227, 216, .13), transparent 64%),
    var(--ink);
}

.page-home .help-layout {
  display: grid;
  gap: clamp(30px, 5vw, 60px);
  align-items: start;
}

.page-home .help-copy h2 {
  margin: 10px 0 16px;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 800;
  line-height: 1.16;
  color: var(--white);
}

.page-home .help-lede {
  margin: 0 0 26px;
  max-width: 40ch;
  font-size: var(--fs-base);
  line-height: 1.75;
  color: var(--silver);
}

.page-home .help-rows {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-home .help-rows > div {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .help-rows dt {
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--orbit);
}

.page-home .help-rows dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--silver);
  word-break: break-word;
}

/* ---------- 动效 ---------- */
@keyframes home-orbit-spin {
  to { transform: rotate(1turn); }
}

@keyframes home-pulse {
  0%, 100% { opacity: .45; }
  50% { opacity: 1; }
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .atlas-nodes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .log-list > li {
    grid-template-columns: 150px 200px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 20px;
  }

  .page-home .log-list p {
    grid-column: 3;
  }

  .page-home .help-rows > div {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(220px, .72fr);
  }

  .page-home .steps-layout {
    grid-template-columns: 0.92fr 1.08fr;
  }

  .page-home .versions-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-home .switch-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-home .help-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (max-width: 719px) {
  .page-home .atlas-web {
    display: none;
  }

  .page-home .log-list > li {
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-home::before,
  .page-home .aside-dot {
    animation: none;
  }

  .page-home .atlas-node > a {
    transition: none;
  }

  .page-home .atlas-node > a:hover,
  .page-home .atlas-node > a:focus-visible {
    transform: none;
  }
}