.page-home {
  --home-sec-gap: clamp(56px, 8vw, 112px);
  --home-soft: rgba(246, 248, 251, .74);
  position: relative;
  overflow-x: hidden;
  background: var(--ink-black);
  color: var(--paper);
  font-family: var(--font-sans);
}

/* ---------- 首屏框景 ---------- */
.page-home .home-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(36px, 6vw, 84px)) var(--gutter) clamp(44px, 6vw, 84px);
  background:
    radial-gradient(115% 85% at 88% -10%, rgba(31, 91, 255, .38), transparent 60%),
    radial-gradient(85% 65% at 4% 108%, rgba(0, 229, 208, .15), transparent 58%),
    var(--ink-black);
}

.page-home .home-hero-frame {
  position: relative;
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(24px, 4.4vw, 58px);
  border: 1px solid var(--line-dark-strong);
  background: linear-gradient(165deg, rgba(11, 18, 32, .92), rgba(5, 7, 12, .66));
}

.page-home .home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 52px);
}

@media (min-width: 1000px) {
  .page-home .home-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

.page-home .home-hero-copy .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--electric-soft);
  text-transform: uppercase;
}

.page-home .home-hero-copy .eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--electric);
}

.page-home .home-hero h1 {
  margin: 0 0 22px;
  font-size: clamp(2.05rem, 5.2vw, 3.9rem);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -.01em;
  max-width: 14em;
}

.page-home .hero-lead {
  margin: 0 0 30px;
  max-width: 44ch;
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  line-height: 1.8;
  color: rgba(246, 248, 251, .8);
}

/* 首屏三行路径标签 */
.page-home .hero-paths {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .hero-path {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "code word arrow"
    "text text text";
  align-items: center;
  gap: 4px 12px;
  min-height: 48px;
  padding: 11px 14px;
  border: 1px solid var(--line-dark);
  background: linear-gradient(90deg, rgba(31, 91, 255, .2), rgba(0, 229, 208, .06) 52%, rgba(5, 7, 12, 0) 100%);
  color: var(--paper);
  text-decoration: none;
  transition: border-color .28s var(--ease), transform .28s var(--ease), background .28s var(--ease);
}

@media (min-width: 640px) {
  .page-home .hero-path {
    grid-template-columns: auto auto minmax(0, 1fr) auto;
    grid-template-areas: "code word text arrow";
    gap: 12px;
  }
}

.page-home .hero-path:hover,
.page-home .hero-path:focus-visible {
  border-color: var(--electric);
  transform: translateY(-2px);
  background: linear-gradient(90deg, rgba(31, 91, 255, .32), rgba(0, 229, 208, .14) 52%, rgba(5, 7, 12, 0) 100%);
}

.page-home .hero-path-code {
  grid-area: code;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--electric);
}

.page-home .hero-path-word {
  grid-area: word;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-home .hero-path-text {
  grid-area: text;
  font-size: 13.5px;
  line-height: 1.55;
  color: rgba(246, 248, 251, .68);
}

.page-home .hero-path-arrow {
  grid-area: arrow;
  font-size: 15px;
  color: var(--electric-soft);
  transition: transform .28s var(--ease);
}

.page-home .hero-path:hover .hero-path-arrow {
  transform: translateX(3px);
}

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

/* 首屏视觉 */
.page-home .figure--home {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--midnight);
}

.page-home .figure--home img {
  display: block;
  width: 100%;
  height: auto;
  opacity: .35;
}

@media (min-width: 1000px) {
  .page-home .figure--home {
    height: clamp(330px, 32vw, 470px);
  }
  .page-home .figure--home img {
    height: 100%;
    object-fit: cover;
  }
}

/* ---------- 双轴布局 ---------- */
.page-home .axis-layout {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(48px, 7vw, 96px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 1080px) {
  .page-home .axis-layout {
    grid-template-columns: 168px minmax(0, 1fr);
    column-gap: clamp(40px, 5vw, 88px);
  }
}

.page-home .index-rail {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 12px 0;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  scrollbar-width: none;
}

.page-home .index-rail::-webkit-scrollbar {
  display: none;
}

.page-home .index-rail-title {
  display: none;
}

.page-home .index-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 8px 2px;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--graphite);
  font-family: var(--font-sans);
  font-size: 13.5px;
  white-space: nowrap;
  cursor: pointer;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-home .index-link:hover {
  color: var(--paper);
}

.page-home .index-link[data-active="true"] {
  color: var(--electric);
  border-color: var(--electric);
}

.page-home .index-link .idx {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--graphite);
}

.page-home .index-link[data-active="true"] .idx {
  color: var(--electric);
}

@media (min-width: 1080px) {
  .page-home .index-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
    overflow: visible;
    padding: 22px 0 0;
    border-top: 0;
    border-bottom: 0;
  }
  .page-home .index-rail-title {
    display: block;
    margin: 0 0 16px;
    font-size: 11px;
    letter-spacing: .14em;
    color: var(--graphite);
    text-transform: uppercase;
  }
  .page-home .index-link {
    display: flex;
    width: 100%;
    padding: 9px 0 9px 14px;
    border-bottom: 0;
    border-left: 2px solid var(--line-dark);
    white-space: normal;
    text-align: left;
    line-height: 1.45;
  }
  .page-home .index-link[data-active="true"] {
    border-left-color: var(--electric);
  }
}

/* ---------- 章节通用 ---------- */
.page-home .home-section {
  padding: var(--home-sec-gap) 0;
  border-top: 1px solid var(--line-dark);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-home .section-head {
  max-width: 760px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-home .section-head .section-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--electric);
}

.page-home .section-head h2 {
  margin: 0 0 16px;
  font-size: clamp(1.55rem, 3.2vw, 2.35rem);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -.01em;
}

.page-home .section-head .prose {
  margin: 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--home-soft);
}

.page-home .section-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  margin-top: 26px;
  padding: 10px 2px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 208, .35);
  transition: gap .25s var(--ease), border-color .25s var(--ease);
}

.page-home .section-more::after {
  content: "→";
}

.page-home .section-more:hover {
  gap: 13px;
  border-color: var(--electric);
}

/* ---------- 01 三条主线 ---------- */
.page-home .home-lines-figure {
  margin: 0 0 clamp(24px, 3.4vw, 40px);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--midnight);
}

.page-home .home-lines-figure img {
  display: block;
  width: 100%;
  height: auto;
  opacity: .68;
}

.page-home .axis-stack {
  display: grid;
  gap: 18px;
}

@media (min-width: 900px) {
  .page-home .axis-stack {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-home .axis-stack > :nth-child(1) {
    grid-column: 1 / span 7;
  }
  .page-home .axis-stack > :nth-child(2) {
    grid-column: 8 / span 5;
  }
  .page-home .axis-stack > :nth-child(3) {
    grid-column: 3 / span 8;
  }
}

.page-home .line-panel {
  position: relative;
  padding: clamp(22px, 3vw, 36px);
  border: 1px solid var(--line-dark);
  background: linear-gradient(160deg, rgba(18, 32, 58, .85), rgba(11, 18, 32, .95));
  clip-path: polygon(22px 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%, 0 22px);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-home .line-panel:hover {
  border-color: rgba(0, 229, 208, .5);
  transform: translateY(-2px);
}

.page-home .line-panel-no {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--electric);
}

.page-home .line-panel h3 {
  margin: 0 0 14px;
  font-size: clamp(1.08rem, 1.7vw, 1.32rem);
  line-height: 1.38;
  font-weight: 800;
}

.page-home .line-panel p {
  margin: 0 0 16px;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--home-soft);
}

.page-home .line-points {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-home .line-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(246, 248, 251, .68);
}

.page-home .line-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 1px;
  background: var(--electric);
}

.page-home .line-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 600;
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 208, .35);
  transition: border-color .25s var(--ease);
}

.page-home .line-link:hover {
  border-color: var(--electric);
}

/* ---------- 02 栏目速览 ---------- */
.page-home .index-wall {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
}

@media (min-width: 900px) {
  .page-home .index-wall {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
}

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

.page-home .index-stripe {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  grid-template-areas:
    "no name tag"
    "no count count";
  align-items: center;
  gap: 4px 12px;
  padding: 13px 12px;
  border-bottom: 1px solid var(--line-dark);
  transition: background .28s var(--ease);
}

@media (min-width: 700px) {
  .page-home .index-stripe {
    grid-template-columns: 46px minmax(0, 1fr) 92px auto;
    grid-template-areas: "no name count tag";
    gap: 12px;
  }
}

.page-home .index-stripe:hover {
  background: linear-gradient(90deg, rgba(0, 229, 208, .1), rgba(31, 91, 255, .06) 58%, transparent);
}

.page-home .stripe-no {
  grid-area: no;
  font-size: 13px;
  color: var(--electric);
}

.page-home .stripe-name {
  grid-area: name;
  font-size: 15.5px;
  font-weight: 700;
}

.page-home .stripe-count {
  grid-area: count;
  font-size: 12px;
  color: var(--graphite);
}

.page-home .index-stripe .tag {
  grid-area: tag;
  justify-self: end;
}

.page-home .index-wall .figure--tall {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--midnight);
}

.page-home .index-wall .figure--tall img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 03 本周变更 ---------- */
.page-home .changelog-band {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 52px);
  border: 1px solid var(--line-dark);
  background: var(--midnight);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-home .figure--band {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
  pointer-events: none;
}

.page-home .figure--band img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
}

.page-home .changelog-band > *:not(.figure--band) {
  position: relative;
  z-index: 1;
}

.page-home .timeline {
  list-style: none;
  margin: 0 0 14px;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--line-dark-strong);
  display: grid;
  gap: 22px;
}

.page-home .timeline-item {
  position: relative;
  display: grid;
  gap: 7px;
}

.page-home .timeline-item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 5px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink-black);
  border: 2px solid var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 194, 75, .12);
}

.page-home .timeline-when {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-home .timeline-item .tag {
  justify-self: start;
}

.page-home .timeline-item p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 248, 251, .78);
}

@media (min-width: 760px) {
  .page-home .timeline-item {
    grid-template-columns: 92px 118px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
  .page-home .timeline-item::before {
    left: -28px;
    top: 8px;
  }
}

/* ---------- 04 反馈通道 ---------- */
.page-home .feedback-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}

@media (min-width: 900px) {
  .page-home .feedback-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

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

.page-home .issue {
  padding: 18px 18px 18px 20px;
  border: 1px solid var(--line-dark);
  border-left: 2px solid rgba(0, 229, 208, .55);
  background: linear-gradient(120deg, rgba(18, 32, 58, .72), rgba(11, 18, 32, .5));
  transition: border-left-color .28s var(--ease), transform .28s var(--ease);
}

.page-home .issue:hover {
  border-left-color: var(--electric);
  transform: translateX(3px);
}

.page-home .issue-no {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--electric);
}

.page-home .issue h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
}

.page-home .issue p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(246, 248, 251, .68);
}

.page-home .pace-panel {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line-dark);
  background: linear-gradient(150deg, rgba(18, 32, 58, .92), rgba(11, 18, 32, .86));
}

.page-home .pace-panel h3 {
  margin: 0 0 20px;
  font-size: 18px;
  font-weight: 800;
}

.page-home .pace-steps {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-home .pace-steps li {
  padding-left: 16px;
  border-left: 1px solid var(--line-dark-strong);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--home-soft);
}

.page-home .pace-steps .mono {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber);
}

/* ---------- 05 上手路径 ---------- */
.page-home .steps-path {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

@media (min-width: 900px) {
  .page-home .steps-path {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    position: relative;
  }
  .page-home .steps-path::before {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    top: 21px;
    height: 1px;
    background: linear-gradient(90deg, var(--tech-blue), var(--electric) 55%, var(--amber));
    opacity: .65;
  }
}

.page-home .step {
  position: relative;
}

@media (min-width: 900px) {
  .page-home .step {
    padding-right: 24px;
  }
}

.page-home .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 16px;
  border-radius: 50%;
  border: 1px solid var(--line-dark-strong);
  background: var(--ink-black);
  color: var(--electric);
  font-size: 13px;
  position: relative;
  z-index: 1;
}

.page-home .step h3 {
  margin: 0 0 9px;
  font-size: 17px;
  font-weight: 800;
}

.page-home .step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(246, 248, 251, .68);
}

/* ---------- 06 平台规模 ---------- */
.page-home .stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line-dark);
  background: var(--line-dark-strong);
}

@media (min-width: 760px) {
  .page-home .stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--midnight);
}

.page-home .stat-num {
  font-size: clamp(1.7rem, 3.4vw, 2.45rem);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-home .stat-unit {
  font-size: 13px;
  color: var(--electric);
}

.page-home .stat-label {
  flex-basis: 100%;
  margin-top: 8px;
  font-size: 13px;
  color: var(--graphite);
}

.page-home .scale-notes {
  margin-top: 26px;
  display: grid;
  gap: 14px;
}

.page-home .scale-notes p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--home-soft);
}

.page-home .scale-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
}

.page-home .scale-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-bottom: 2px;
  font-size: 13.5px;
  color: var(--electric-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 246, 236, .3);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-home .scale-links a:hover {
  color: var(--electric);
  border-color: var(--electric);
}

/* ---------- 收束行动区 ---------- */
.page-home .home-cta {
  padding: 0 var(--gutter) clamp(60px, 8vw, 110px);
}

.page-home .home-cta-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(28px, 4.4vw, 58px);
  display: grid;
  gap: 18px;
  border: 1px solid var(--line-dark-strong);
  background:
    linear-gradient(120deg, rgba(31, 91, 255, .3), rgba(0, 229, 208, .12) 58%, rgba(5, 7, 12, 0)),
    var(--deep-sea);
}

.page-home .home-cta-inner h2 {
  margin: 0;
  max-width: 22ch;
  font-size: clamp(1.4rem, 2.8vw, 2.05rem);
  line-height: 1.24;
  font-weight: 900;
}

.page-home .home-cta-inner p {
  margin: 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(246, 248, 251, .78);
}

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

@media (min-width: 900px) {
  .page-home .home-cta-inner {
    grid-template-columns: minmax(0, 1.15fr) auto;
    align-items: center;
    column-gap: clamp(28px, 4vw, 64px);
  }
  .page-home .home-cta-inner h2 {
    grid-column: 1;
    grid-row: 1;
  }
  .page-home .home-cta-inner p {
    grid-column: 1;
    grid-row: 2;
  }
  .page-home .cta-actions {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-content: flex-end;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .hero-path,
  .page-home .line-panel,
  .page-home .index-stripe,
  .page-home .issue,
  .page-home .index-link,
  .page-home .section-more {
    transition: none;
  }
  .page-home .hero-path:hover,
  .page-home .line-panel:hover,
  .page-home .issue:hover {
    transform: none;
  }
  .page-home .hero-path:hover .hero-path-arrow {
    transform: none;
  }
}