.page-home {
  --home-pad: clamp(56px, 9vw, 132px);
  --home-hair: 1px solid var(--grid);
  color: var(--fog);
}

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

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(40px, 6vw, 84px) 0 clamp(52px, 7vw, 104px);
  background:
    radial-gradient(900px 520px at 84% 6%, rgba(21, 27, 63, 0.95), transparent 68%),
    radial-gradient(700px 420px at 4% 98%, rgba(6, 48, 46, 0.7), transparent 70%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  border-bottom: var(--home-hair);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(to right, var(--grid-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-soft) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.45;
  pointer-events: none;
}

.page-home .home-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  pointer-events: none;
}

.page-home .home-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 60px);
  align-items: start;
}

.page-home .home-hero__title {
  margin: 20px 0 0;
  max-width: 13em;
  font-size: clamp(36px, 6.4vw, 82px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--fog);
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

.page-home .home-hero__lede {
  margin: 24px 0 0;
  max-width: 47ch;
  font-size: clamp(15px, 1.1vw, 18px);
  line-height: 1.85;
  color: var(--slate);
}

.page-home .home-hero__actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .home-hero__vert {
  display: none;
}

/* 错位索引目录 */
.page-home .hero-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-content: start;
}

.page-home .hero-index__node {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding: 18px 20px;
  border: var(--home-hair);
  background: var(--frost);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  text-decoration: none;
  color: var(--fog);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-home .hero-index__node:hover,
.page-home .hero-index__node:focus-visible {
  transform: scale(1.02);
  border-color: var(--cyan);
  background: rgba(41, 242, 214, 0.08);
}

.page-home .hero-index__no {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-home .hero-index__t {
  font-size: clamp(18px, 1.5vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-home .hero-index__d {
  flex: 1 1 100%;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 通用章节标题 ---------- */
.page-home .home-sec__head {
  max-width: 60ch;
}

.page-home .home-sec__head .eyebrow {
  margin-bottom: 14px;
}

.page-home .home-sec__head .headline {
  margin: 0 0 16px;
  font-size: clamp(26px, 3.4vw, 44px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-home .home-sec__head .prose {
  margin: 0;
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 版本轴 ---------- */
.page-home .home-timeline {
  padding: var(--home-pad) 0;
  background:
    radial-gradient(1100px 500px at 12% 0%, rgba(74, 16, 39, 0.85), transparent 70%),
    var(--ink-deep);
  border-bottom: var(--home-hair);
}

.page-home .home-timeline__figure {
  margin: clamp(32px, 4vw, 56px) 0 clamp(22px, 3vw, 36px);
  border: var(--home-hair);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.page-home .home-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.9;
}

.page-home .vtrack {
  list-style: none;
  margin: 0;
  padding: 0 0 14px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(240px, 82%);
  gap: 14px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
}

.page-home .vtrack__item {
  scroll-snap-align: start;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 22px 20px;
  border: var(--home-hair);
  border-top: 2px solid var(--cyan);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-home .vtrack__item:nth-child(2) {
  border-top-color: var(--orange);
}

.page-home .vtrack__item:nth-child(3) {
  border-top-color: var(--slate);
}

.page-home .vtrack__ver {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-home .vtrack__item:nth-child(2) .vtrack__ver {
  color: var(--orange);
}

.page-home .vtrack__item:nth-child(3) .vtrack__ver {
  color: var(--fog);
}

.page-home .vtrack__scope {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-home .vtrack__when {
  margin: 0;
  color: var(--slate);
}

/* ---------- 对照工具 ---------- */
.page-home .home-tool {
  padding: var(--home-pad) 0;
  background:
    radial-gradient(900px 520px at 88% 18%, rgba(41, 242, 214, 0.13), transparent 66%),
    var(--teal);
  border-bottom: var(--home-hair);
}

.page-home .home-tool__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 60px);
  align-items: center;
}

.page-home .home-tool__media {
  margin: 0;
  border: var(--home-hair);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

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

.page-home .home-tool__body .eyebrow {
  margin-bottom: 14px;
}

.page-home .home-tool__body .headline {
  margin: 0 0 18px;
  font-size: clamp(26px, 3.4vw, 44px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-home .home-tool__body .prose {
  margin: 0;
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.85;
  color: var(--fog);
  opacity: 0.86;
}

.page-home .home-tool__kpis {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(22px, 3vw, 46px);
  margin: 28px 0 30px;
  padding: 24px 0;
  border-top: var(--home-hair);
  border-bottom: var(--home-hair);
}

.page-home .home-tool__kpis .kpi {
  display: grid;
  gap: 6px;
}

.page-home .kpi-value {
  font-size: clamp(38px, 5vw, 66px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-home .kpi-value--orange {
  color: var(--orange);
}

.page-home .kpi-label {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--slate);
}

/* ---------- 资料库 ---------- */
.page-home .home-library {
  padding: var(--home-pad) 0;
  background:
    radial-gradient(800px 460px at 92% 100%, rgba(21, 27, 63, 0.9), transparent 70%),
    var(--ink);
  border-bottom: var(--home-hair);
}

.page-home .home-library__tabs {
  margin-top: clamp(30px, 4vw, 52px);
}

.page-home .home-library__tabs .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-bottom: var(--home-hair);
}

.page-home .home-library__tabs .tab {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  padding: 12px 12px;
  font: inherit;
  font-size: clamp(14px, 1vw, 16px);
  font-weight: 700;
  color: var(--slate);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-home .home-library__tabs .tab:hover {
  color: var(--fog);
}

.page-home .home-library__tabs .tab[aria-selected="true"] {
  color: var(--fog);
  border-bottom-color: var(--cyan);
}

.page-home .home-library__tabs .tabpanel {
  padding-top: clamp(26px, 3.4vw, 44px);
}

.page-home .tabpanel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-home .tabpanel__big {
  margin: 0;
  font-size: clamp(44px, 6vw, 76px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-home .tabpanel__big sup {
  margin-left: 6px;
  font-size: 0.3em;
  vertical-align: super;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-home .tabpanel__grid .prose {
  margin: 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 平板与新用户三步 ---------- */
.page-home .home-tablet {
  padding: var(--home-pad) 0;
  background:
    radial-gradient(860px 500px at 8% 8%, rgba(21, 27, 63, 0.95), transparent 68%),
    var(--ink-deep);
  border-bottom: var(--home-hair);
}

.page-home .home-tablet__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
}

.page-home .home-tablet__body .eyebrow {
  margin-bottom: 14px;
}

.page-home .home-tablet__body .headline {
  margin: 0 0 18px;
  font-size: clamp(26px, 3.4vw, 44px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-home .home-tablet__body .prose {
  margin: 0;
  max-width: 50ch;
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.85;
  color: var(--slate);
}

.page-home .steps {
  list-style: none;
  margin: 28px 0 30px;
  padding: 0;
}

.page-home .steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  padding: 18px 0;
  border-top: var(--home-hair);
}

.page-home .steps__item:last-child {
  border-bottom: var(--home-hair);
}

.page-home .steps__no {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--orange);
}

.page-home .steps__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-home .home-tablet__media {
  margin: 0;
  border: var(--home-hair);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

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

/* ---------- 刷新节奏与客服 ---------- */
.page-home .home-rhythm {
  padding: var(--home-pad) 0;
  background: var(--ink);
  border-bottom: var(--home-hair);
}

.page-home .home-rhythm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 44px);
}

.page-home .home-rhythm__card {
  padding: clamp(24px, 3vw, 40px);
  border: var(--home-hair);
  background: var(--frost);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-home .home-rhythm__card .eyebrow {
  margin-bottom: 6px;
}

.page-home .home-rhythm__big {
  margin: 14px 0 6px;
  font-size: clamp(42px, 5.4vw, 70px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-home .home-rhythm__big span {
  margin-left: 6px;
  font-size: 0.28em;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-home .home-rhythm__big--orange {
  color: var(--orange);
}

.page-home .home-rhythm__card .headline {
  margin: 6px 0 14px;
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-home .home-rhythm__card .prose {
  margin: 0 0 22px;
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.85;
  color: var(--slate);
}

.page-home .home-rhythm__contact {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .home-rhythm__contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding-bottom: 12px;
  border-bottom: var(--home-hair);
}

.page-home .home-rhythm__contact .mono {
  font-size: 15px;
  color: var(--fog);
  word-break: break-word;
}

/* ---------- 规模与索引 ---------- */
.page-home .home-scale {
  padding: var(--home-pad) 0;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-home .home-scale__list {
  margin: clamp(30px, 4vw, 50px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--grid);
  border: var(--home-hair);
}

.page-home .home-scale__item {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 32px);
  background: var(--ink);
}

.page-home .home-scale__item dt {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-home .home-scale__item dd {
  margin: 0;
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-home .home-index-strip {
  margin-top: clamp(34px, 5vw, 62px);
  padding-top: 24px;
  border-top: var(--home-hair);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
}

.page-home .home-index-strip a {
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  color: var(--fog);
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-home .home-index-strip a:hover,
.page-home .home-index-strip a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .hero-index {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .hero-index__node--a {
    grid-column: 1 / span 8;
  }

  .page-home .hero-index__node--b {
    grid-column: 5 / span 8;
  }

  .page-home .hero-index__node--c {
    grid-column: 2 / span 7;
  }

  .page-home .hero-index__node--d {
    grid-column: 6 / span 7;
  }
}

@media (min-width: 860px) {
  .page-home .tabpanel__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(24px, 3vw, 48px);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-home .home-tool__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-home .home-tablet__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .home-tablet__media {
    order: 2;
  }
}

@media (min-width: 980px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(40px, 6vw, 96px);
  }

  .page-home .home-rhythm__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 1000px) {
  .page-home .vtrack {
    grid-auto-columns: minmax(0, 1fr);
    overflow-x: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 1200px) {
  .page-home .home-hero__vert {
    display: block;
    position: absolute;
    right: clamp(12px, 2vw, 30px);
    bottom: clamp(40px, 6vw, 92px);
    margin: 0;
    writing-mode: vertical-rl;
    letter-spacing: 0.32em;
    font-size: 12px;
    color: var(--slate);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}
</main>