.page-home {
  --home-line: rgba(199, 196, 204, 0.62);
  --home-line-soft: rgba(199, 196, 204, 0.34);
  background:
    linear-gradient(180deg, rgba(230, 223, 238, 0.38) 0, rgba(245, 242, 236, 0) 460px),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
}

.page-home *,
.page-home *::before,
.page-home *::after {
  box-sizing: border-box;
}

.page-home .wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 40px);
}

.page-home h1,
.page-home h2,
.page-home h3 {
  font-family: var(--serif);
  letter-spacing: -0.01em;
  line-height: 1.24;
  margin: 0;
}

.page-home .mono {
  font-family: var(--mono);
}

.page-home :focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- 面包屑 ---------- */

.page-home .breadcrumb {
  margin: 18px 0 0;
  font-size: 13px;
}

.page-home .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--mono);
  letter-spacing: 0.06em;
  color: rgba(21, 19, 26, 0.55);
}

.page-home .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--frost);
}

.page-home .breadcrumb a {
  color: var(--grape-mid);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .breadcrumb a:hover {
  color: var(--grape);
  border-bottom-color: var(--amber);
}

/* ---------- 首屏框景 ---------- */

.page-home .hero {
  padding-bottom: clamp(30px, 5vw, 54px);
}

.page-home .hero-frame {
  position: relative;
  margin-top: 16px;
  border: 1px solid var(--home-line);
  padding: clamp(24px, 4.4vw, 48px);
  background:
    radial-gradient(120% 92% at 80% 6%, rgba(74, 42, 94, 0.1), rgba(245, 242, 236, 0) 62%),
    linear-gradient(180deg, rgba(230, 223, 238, 0.46), rgba(245, 242, 236, 0) 58%);
}

.page-home .hero-frame::before,
.page-home .hero-frame::after {
  content: "";
  position: absolute;
  pointer-events: none;
  opacity: 0.75;
}

.page-home .hero-frame::before {
  left: 9px;
  top: 20px;
  bottom: 20px;
  width: 1px;
  background-image: repeating-linear-gradient(180deg, var(--frost) 0 1px, transparent 1px 14px);
}

.page-home .hero-frame::after {
  top: 9px;
  left: 20px;
  right: 20px;
  height: 1px;
  background-image: repeating-linear-gradient(90deg, var(--frost) 0 1px, transparent 1px 14px);
}

.page-home .hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-home .hero-kicker {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--grape-mid);
}

.page-home .hero-copy h1 {
  font-size: clamp(36px, 7.4vw, 66px);
  font-weight: 700;
  color: var(--grape);
  margin-bottom: 18px;
  max-width: 12em;
}

.page-home .hero-lead {
  margin: 0 0 14px;
  font-size: clamp(17px, 2.1vw, 19px);
  line-height: 1.8;
  color: rgba(21, 19, 26, 0.9);
  max-width: 33em;
}

.page-home .hero-sub {
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(21, 19, 26, 0.68);
  max-width: 33em;
}

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

.page-home .hero-figure {
  aspect-ratio: 16 / 10;
}

.page-home .hero-stamp {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: rgba(21, 19, 26, 0.55);
}

.page-home .hero-stamp b {
  color: var(--grape);
  font-weight: 600;
}

/* ---------- 葡萄藤装饰 ---------- */

.page-home .vine-band {
  margin-top: clamp(32px, 5vw, 60px);
}

.page-home .vine-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-home .vine-path {
  fill: none;
  stroke: var(--grape-mid);
  stroke-width: 1.2;
  stroke-linecap: round;
  opacity: 0.5;
}

.page-home .vine-node {
  fill: var(--amber);
  stroke: var(--paper);
  stroke-width: 2;
}

.page-home .vine-svg.is-grown .vine-path {
  stroke-dasharray: 1400;
  animation: home-vine-grow 900ms var(--ease) both;
}

@keyframes home-vine-grow {
  from { stroke-dashoffset: 1400; }
  to { stroke-dashoffset: 0; }
}

/* ---------- 窄栏 + 主区 ---------- */

.page-home .rail-layout {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
  margin-top: clamp(28px, 4vw, 52px);
}

.page-home .rail-main {
  min-width: 0;
}

.page-home .record-rail {
  background: var(--vine);
  color: #E8E3EC;
  padding: 20px 18px 22px;
  border-radius: 2px;
  box-shadow: var(--shadow-1);
}

.page-home .record-rail .rail-title {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-home .rail-note {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(232, 227, 236, 0.66);
}

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

.page-home .record-rail .rail-item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 8px;
  border-bottom: 1px dashed rgba(199, 196, 204, 0.22);
  transition: background-color 160ms var(--ease);
}

.page-home .record-rail .rail-item:last-child {
  border-bottom: 0;
}

.page-home .record-rail .rail-item:hover,
.page-home .record-rail .rail-item:focus-within {
  background-color: rgba(209, 154, 60, 0.16);
}

.page-home .record-rail .rail-key {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(232, 227, 236, 0.6);
}

.page-home .record-rail .rail-val a {
  display: inline-block;
  font-size: 14px;
  line-height: 1.55;
  color: #EFEAF3;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .record-rail .rail-val a:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

@media (max-width: 1023px) {
  .page-home .record-rail .rail-list {
    max-height: 268px;
    overflow-y: auto;
  }
}

/* ---------- 区块 ---------- */

.page-home .band {
  border-top: 1px solid var(--home-line);
  padding: clamp(32px, 5vw, 54px) 0;
}

.page-home .rail-main > .band:first-child,
.page-home .rail-main > .band:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-home .section-head {
  display: grid;
  gap: 7px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-home .section-head .idx {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-home .section-head h2 {
  font-size: clamp(24px, 3.8vw, 34px);
  font-weight: 700;
  color: var(--grape);
}

.page-home .section-head .sub {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(21, 19, 26, 0.68);
  max-width: 40em;
}

.page-home .band-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.page-home .prose p {
  margin: 0 0 1.05em;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(21, 19, 26, 0.82);
  max-width: 38em;
}

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

/* ---------- 图片框 ---------- */

.page-home .frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--home-line);
  border-radius: 2px;
  background: var(--vine);
}

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

.page-home .frame--cabinet,
.page-home .frame--device {
  aspect-ratio: 3 / 2;
}

.page-home .frame--corridor {
  aspect-ratio: 40 / 13;
}

.page-home .frame-caption {
  display: block;
  margin-top: 9px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(21, 19, 26, 0.52);
}

/* ---------- 标签与按钮 ---------- */

.page-home .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 22px;
}

.page-home .btn--on-dark {
  color: #EDE8F1;
  border-color: rgba(199, 196, 204, 0.5);
}

.page-home .btn--on-dark:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.page-home .tick-link {
  display: inline-block;
  font-size: 14px;
  color: var(--grape-mid);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 78, 158, 0.38);
  padding-bottom: 2px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .tick-link:hover {
  color: var(--grape);
  border-bottom-color: var(--amber);
}

/* ---------- 深色区块 ---------- */

.page-home .band--dark {
  border-top: 0;
  background: var(--vine);
  color: #EDE8F1;
  border-radius: 3px;
  padding: clamp(28px, 4vw, 46px) clamp(20px, 3.4vw, 38px);
  box-shadow: var(--shadow-1);
}

.page-home .band--dark .section-head h2 {
  color: #F4F0F8;
}

.page-home .band--dark .section-head .sub {
  color: rgba(237, 232, 241, 0.72);
}

.page-home .band--dark .prose p {
  color: rgba(237, 232, 241, 0.86);
}

.page-home .band--dark .btn-row {
  margin-top: 22px;
}

/* ---------- 版本比例条 ---------- */

.page-home .ratio {
  margin-top: clamp(24px, 3.4vw, 36px);
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid rgba(199, 196, 204, 0.24);
}

.page-home .ratio-bar {
  display: flex;
  gap: 3px;
  height: 14px;
  border-radius: 2px;
  overflow: hidden;
}

.page-home .ratio-seg {
  display: block;
  height: 100%;
}

.page-home .ratio-seg--major { flex: 42 1 0; background: var(--amber); }
.page-home .ratio-seg--minor { flex: 197 1 0; background: var(--grape-mid); }
.page-home .ratio-seg--patch { flex: 147 1 0; background: rgba(199, 196, 204, 0.62); }

.page-home .ratio-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  font-size: 14px;
  color: rgba(237, 232, 241, 0.84);
}

.page-home .ratio-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-home .ratio-legend .mono {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: #F4F0F8;
  font-weight: 600;
}

.page-home .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex: none;
}

.page-home .dot--major { background: var(--amber); }
.page-home .dot--minor { background: var(--grape-mid); }
.page-home .dot--patch { background: rgba(199, 196, 204, 0.62); }

/* ---------- 路径列表 ---------- */

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

.page-home .route-item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 6px;
  border-bottom: 1px solid var(--home-line-soft);
  transition: background-color 160ms var(--ease);
}

.page-home .route-item:first-child {
  border-top: 1px solid var(--home-line-soft);
}

.page-home .route-item:hover {
  background-color: rgba(230, 223, 238, 0.5);
}

.page-home .route-no {
  padding-top: 4px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-home .route-body h3 {
  margin-bottom: 6px;
  font-size: clamp(18px, 2.2vw, 21px);
  font-weight: 700;
  color: var(--grape);
}

.page-home .route-body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(21, 19, 26, 0.72);
  max-width: 38em;
}

/* ---------- 入口记录带 ---------- */

.page-home .tape {
  margin-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--home-line);
  border-bottom: 1px solid var(--home-line);
  padding: 16px 0 4px;
  overflow-x: auto;
}

.page-home .tape-days {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(52px, 1fr);
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 660px;
}

.page-home .tape-days li {
  position: relative;
  padding: 6px 0 12px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: rgba(21, 19, 26, 0.48);
  border-left: 1px dashed var(--home-line-soft);
}

.page-home .tape-days li:first-child {
  border-left: 0;
}

.page-home .tape-days li::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 1px;
  height: 7px;
  background: var(--frost);
  transform: translateX(-50%);
}

.page-home .tape-days li.is-today {
  color: var(--grape);
  font-weight: 600;
}

.page-home .tape-days li.is-today::after {
  width: 3px;
  height: 11px;
  border-radius: 2px;
  background: var(--amber);
}

.page-home .tape-prose {
  margin-top: clamp(22px, 3vw, 30px);
}

/* ---------- 支持 ---------- */

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

.page-home .support-card {
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--grape-mid);
  background: #FCFAF6;
  padding: 22px 22px 24px;
  transition: border-left-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-home .support-card:hover {
  border-left-color: var(--amber);
  box-shadow: var(--shadow-1);
}

.page-home .support-card h3 {
  margin-bottom: 8px;
  font-size: 19px;
  font-weight: 700;
  color: var(--grape);
}

.page-home .support-card p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(21, 19, 26, 0.72);
}

.page-home .support-note {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(21, 19, 26, 0.66);
}

/* ---------- 显现 ---------- */

.page-home [data-reveal] {
  transition: opacity 420ms var(--ease), transform 420ms var(--ease);
}

.js .page-home [data-reveal]:not(.is-in) {
  opacity: 0;
  transform: translateY(12px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-home .band-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

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

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.16fr);
    align-items: center;
  }

  .page-home .hero-figure {
    margin-top: 6px;
  }
}

@media (min-width: 1024px) {
  .page-home .rail-layout {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-home .band--dark {
    margin-inline: 0;
  }
}

@media (max-width: 719px) {
  .page-home .route-item {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .page-home .hero-stamp {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home [data-reveal],
  .page-home .record-rail .rail-item,
  .page-home .tick-link,
  .page-home .support-card {
    transition: none;
  }

  .js .page-home [data-reveal]:not(.is-in) {
    opacity: 1;
    transform: none;
  }

  .page-home .vine-svg.is-grown .vine-path {
    animation: none;
    stroke-dasharray: none;
    stroke-dashoffset: 0;
  }
}