:root {
  --page-bg: #ffffff;
  --section-bg: #f5f5f7;
  --section-bg-soft: #fbfbfd;
  --section-gap: 1.25rem;
  --card-bg: #ffffff;
  --card-bg-soft: rgba(255, 255, 255, 0.86);
  --text: #1d1d1f;
  --muted: #6e6e73;
  --muted-strong: #424245;
  --blue: #0071e3;
  --blue-pressed: #005bb5;
  --line: rgba(0, 0, 0, 0.08);
  --nav-bg: #ffffff;
  --globalnav-width: 24rem;
  --material: rgba(255, 255, 255, 0.72);
  --material-heavy: rgba(255, 255, 255, 0.9);
  --shadow-soft: 0 22px 70px rgba(0, 0, 0, 0.08);
  --shadow-tight: 0 10px 34px rgba(0, 0, 0, 0.07);
  --shadow-material: 0 1px 0 rgba(255, 255, 255, 0.72) inset, 0 18px 44px rgba(0, 0, 0, 0.08);
  --shadow-card-lift: 0 1px 0 rgba(255, 255, 255, 0.76) inset, 0 24px 64px rgba(0, 0, 0, 0.12);
  --spring-standard: cubic-bezier(0.22, 1, 0.36, 1);
  --spring-press: cubic-bezier(0.18, 0.9, 0.32, 1.28);
  --spring-card: cubic-bezier(0.2, 0.9, 0.24, 1);
  --duration-fast: 140ms;
  --duration-base: 220ms;
  --duration-slow: 320ms;
  --hero-scroll-progress: 0;
  --radius-large: 28px;
  --radius-medium: 22px;
  --max: 1180px;
  color-scheme: light dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.47;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page-bg);
}

body {
  margin: 0;
  color: var(--text);
  background: var(--page-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.45rem, 3vw, 2.65rem);
  height: 2.75rem;
  padding: 0 1.2rem;
  background: var(--nav-bg);
  border-bottom: 1px solid transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: background-color var(--duration-base) ease, box-shadow var(--duration-base) ease, backdrop-filter var(--duration-base) ease;
}

.site-header.is-scrolled {
  background: var(--nav-bg);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.44) inset, 0 10px 30px rgba(0, 0, 0, 0.05);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  min-height: 2.75rem;
  font-size: 0.72rem;
  line-height: 1;
  font-weight: 650;
}

.brand-mark img {
  width: 1.32rem;
  height: 1.32rem;
  border-radius: 50%;
  object-fit: cover;
}

.main-nav {
  display: inline-flex;
  align-items: center;
  gap: clamp(1.25rem, 3.2vw, 2.4rem);
  color: var(--muted-strong);
  font-size: 0.68rem;
  line-height: 1;
  font-weight: 500;
}

.main-nav a,
.nav-menu-trigger {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.nav-menu {
  position: static;
  display: inline-flex;
  align-items: center;
}

.nav-menu-trigger {
  padding: 0;
  border: 0;
  color: inherit;
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.product-menu {
  position: fixed;
  z-index: 19;
  top: 2.75rem;
  left: 0;
  right: 0;
  min-height: 0;
  padding: 3.3rem 1.25rem 4.15rem;
  background: var(--nav-bg);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  clip-path: inset(0 0 100% 0);
  opacity: 0;
  pointer-events: none;
  transform: translateY(0);
  transform-origin: 50% 0;
  transition: clip-path 320ms var(--spring-standard), opacity 180ms ease;
}

.nav-menu:focus-within .product-menu,
.nav-menu.is-open .product-menu {
  clip-path: inset(0 0 0 0);
  opacity: 1;
  pointer-events: auto;
}

.product-menu-inner {
  display: grid;
  grid-template-columns: 16rem 8.75rem;
  gap: clamp(3.5rem, 8vw, 7.5rem);
  align-items: start;
  width: min(36rem, calc(100vw - 2.5rem));
  margin-left: max(1.25rem, calc((100vw - var(--globalnav-width)) / 2));
}

.product-menu-group {
  display: grid;
  align-content: start;
  gap: 0.38rem;
  opacity: 0;
  transform: translateY(-0.35rem);
  transition: opacity 180ms ease, transform 240ms var(--spring-standard);
}

.nav-menu:focus-within .product-menu-group,
.nav-menu.is-open .product-menu-group {
  opacity: 1;
  transform: translateY(0);
}

.nav-menu:focus-within .product-menu-group:nth-child(1),
.nav-menu.is-open .product-menu-group:nth-child(1) {
  transition-delay: 70ms;
}

.nav-menu:focus-within .product-menu-group:nth-child(2),
.nav-menu.is-open .product-menu-group:nth-child(2) {
  transition-delay: 95ms;
}

.product-menu-group span {
  margin-bottom: 0.62rem;
  color: var(--muted);
  font-size: 0.74rem;
  line-height: 1.2;
  font-weight: 500;
}

.product-menu a {
  width: fit-content;
  min-height: 1.78rem;
  justify-content: flex-start;
  padding: 0;
  border-radius: 0;
  color: var(--text);
  transform-origin: 0 50%;
}

.product-menu-primary a {
  min-height: 2.08rem;
  font-size: clamp(1.25rem, 1.58vw, 1.55rem);
  line-height: 1.12;
  font-weight: 700;
}

.product-menu-secondary a {
  min-height: 1.55rem;
  color: var(--muted-strong);
  font-size: 0.82rem;
  line-height: 1.18;
  font-weight: 650;
}

.product-menu a:hover,
.product-menu a:focus-visible {
  color: var(--blue);
}

.pressable {
  touch-action: manipulation;
  transform: translateZ(0) scale(1);
  transition: transform var(--duration-fast) var(--spring-press), background-color var(--duration-fast) ease, color var(--duration-fast) ease, opacity var(--duration-fast) ease;
  will-change: transform;
}

.pressable:active,
.pressable.is-pressing,
.social-card:active,
.lineup-download:active,
.download-provider:active,
.download-close:active,
.pill-nav-item:active,
.category-pill:active {
  transform: translateZ(0) scale(0.97);
}

.pressable:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--blue) 44%, transparent);
  outline-offset: 4px;
}

main {
  overflow: hidden;
  background: var(--page-bg);
  transform-origin: 50% 20%;
  transition: transform var(--duration-slow) var(--spring-card), filter var(--duration-slow) ease;
}

.has-download-dialog main {
  transform: scale(0.992);
  filter: saturate(0.94);
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 70% 44%, rgba(0, 113, 227, 0.22), transparent 32rem),
    radial-gradient(circle at 24% 12%, rgba(48, 209, 88, 0.12), transparent 26rem),
    linear-gradient(180deg, #7ecef4 0%, #bae6fc 52%, #f0f9ff 100%);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.hero::before {
  z-index: -2;
  inset: -16% -12% -10% 35%;
  background:
    radial-gradient(circle at 50% 44%, rgba(255, 255, 255, 0.72), transparent 19rem),
    radial-gradient(circle at 72% 58%, rgba(168, 214, 238, 0.18), transparent 18rem);
  filter: blur(34px) saturate(108%);
  transform: translateY(calc(var(--hero-scroll-progress) * 1.8rem));
}

.hero::after {
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.25) 72%, rgba(255, 255, 255, 0.75) 100%);
  opacity: 0.45;
}

.hero-inner {
  position: relative;
  z-index: 1;
  min-height: 34rem;
  height: min(66svh, 42rem);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.95fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding: 7rem 1.25rem 4.25rem;
}

.hero-copy {
  transform: translateY(calc(var(--hero-scroll-progress) * -1.25rem));
  transition: transform 120ms linear;
  will-change: transform;
}

.hero-copy>*,
.hero-portrait {
  opacity: 0;
  transform: translateY(1.6rem) scale(0.985);
}

.hero.is-visible .hero-copy>*,
.hero.is-visible .hero-portrait {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition:
    opacity 760ms ease,
    transform 880ms var(--spring-standard);
}

.hero.is-visible .hero-copy> :nth-child(1) {
  transition-delay: 70ms;
}

.hero.is-visible .hero-copy> :nth-child(2) {
  transition-delay: 150ms;
}

.hero.is-visible .hero-copy> :nth-child(3) {
  transition-delay: 230ms;
}

.hero.is-visible .hero-portrait {
  transition-delay: 210ms;
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  font-weight: 750;
  line-height: 1.05;
  letter-spacing: -0.024em;
  font-optical-sizing: auto;
}

.lineup h2,
.support h2 {
  margin: 0;
  font-weight: 740;
  line-height: 1.07;
  letter-spacing: -0.018em;
  font-optical-sizing: auto;
}

.hero h1 {
  font-size: clamp(4rem, 10vw, 8.5rem);
}

.hero-subtitle {
  max-width: 46rem;
  margin: 1rem 0 0;
  color: var(--muted-strong);
  font-size: clamp(1.05rem, 1.55vw, 1.25rem);
  line-height: 1.46;
  font-weight: 540;
  letter-spacing: 0;
  overflow-wrap: anywhere;
  text-wrap: normal;
}

.hero-subtitle span {
  display: block;
}

.hero-actions,
.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}

.product-hero .hero-actions {
  justify-content: center;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.65rem;
  padding: 0 1.25rem;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

.primary-button {
  color: #fff;
  background: var(--blue);
}

.primary-button:active {
  background: var(--blue-pressed);
}

.secondary-button {
  color: var(--blue);
  background: color-mix(in srgb, var(--blue) 10%, transparent);
}

.small {
  min-height: 2.25rem;
  padding-inline: 1rem;
  font-size: 0.88rem;
}

.hero-portrait {
  display: flex;
  justify-content: center;
}

.portrait-stage {
  position: relative;
  width: min(28rem, 78vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  transform: translateY(calc(var(--hero-scroll-progress) * 1.4rem)) scale(calc(1 - var(--hero-scroll-progress) * 0.035));
  transition: transform 120ms linear;
  will-change: transform;
}

.portrait-stage::before {
  content: "";
  position: absolute;
  inset: 7%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.18) 56%, transparent 72%),
    linear-gradient(145deg, rgba(0, 113, 227, 0.1), rgba(48, 209, 88, 0.08));
  filter: blur(0.5px);
  opacity: 0;
  transform: scale(0.92);
  transition:
    opacity 720ms ease 260ms,
    transform 980ms var(--spring-standard) 260ms;
}

.hero.is-visible .portrait-stage::before {
  opacity: 1;
  transform: scale(1);
}

.portrait-image {
  position: relative;
  z-index: 2;
  width: 47%;
  aspect-ratio: 1;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow-soft);
  transform: scale(0.92);
  transition: transform 900ms var(--spring-standard) 260ms;
}

.hero.is-visible .portrait-image {
  transform: scale(1);
}

.product-orbit {
  position: absolute;
  inset: 0;
}

.product-orbit-link {
  position: absolute;
  display: inline-grid;
  place-items: center;
  width: clamp(3.25rem, 8vw, 5rem);
  height: clamp(3.25rem, 8vw, 5rem);
  border-radius: 22%;
  color: inherit;
  text-decoration: none;
  outline: none;
  opacity: 0;
  transform: translateY(0.9rem) scale(0.78);
  will-change: transform, opacity;
}

.product-orbit img {
  width: 100%;
  height: 100%;
  border-radius: 22%;
  box-shadow: var(--shadow-tight);
  transition: transform 300ms var(--spring-card), box-shadow 240ms ease;
  will-change: transform;
}

.hero.is-visible .product-orbit-link {
  animation: orbit-arrive 860ms var(--spring-standard) forwards;
}

.product-orbit-label {
  position: absolute;
  left: 50%;
  top: calc(100% + 0.55rem);
  max-width: 7.2rem;
  padding: 0.3rem 0.58rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.72) inset,
    0 10px 28px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  font-size: 0.78rem;
  line-height: 1;
  font-weight: 650;
  letter-spacing: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, 0.45rem) scale(0.96);
  transition:
    opacity 160ms ease,
    transform 260ms var(--spring-card);
  pointer-events: none;
}

.product-orbit-link:nth-child(1) {
  top: 7%;
  left: 41%;
}

.product-orbit-link:nth-child(1) .product-orbit-label {
  top: auto;
  bottom: calc(100% + 0.55rem);
  transform: translate(-50%, -0.45rem) scale(0.96);
}

.product-orbit-link:nth-child(2) {
  top: 24%;
  right: 4%;
}

.product-orbit-link:nth-child(3) {
  right: 12%;
  bottom: 16%;
}

.product-orbit-link:nth-child(4) {
  bottom: 6%;
  left: 38%;
}

.product-orbit-link:nth-child(5) {
  left: 9%;
  bottom: 18%;
}

.product-orbit-link:nth-child(6) {
  top: 24%;
  left: 4%;
}

.hero.is-visible .product-orbit-link:nth-child(1) {
  animation-delay: 330ms;
}

.hero.is-visible .product-orbit-link:nth-child(2) {
  animation-delay: 390ms;
}

.hero.is-visible .product-orbit-link:nth-child(3) {
  animation-delay: 450ms;
}

.hero.is-visible .product-orbit-link:nth-child(4) {
  animation-delay: 510ms;
}

.hero.is-visible .product-orbit-link:nth-child(5) {
  animation-delay: 570ms;
}

.hero.is-visible .product-orbit-link:nth-child(6) {
  animation-delay: 630ms;
}

.lineup {
  background: var(--section-bg);
}

.why {
  background: var(--section-bg);
}

.support {
  background: var(--section-bg);
}

section {
  margin: 0;
  padding: 0;
}

section+section {
  border-top: var(--section-gap) solid var(--page-bg);
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 5.5rem 1.25rem;
}

.section-heading {
  max-width: 48rem;
  margin: 0 auto 2rem;
  text-align: center;
}

.section-heading h2,
.lineup h2,
.support h2 {
  font-size: 4rem;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.principle-grid article {
  border-radius: var(--radius-large);
  background: var(--card-bg);
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  box-shadow: var(--shadow-material);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
}

.principle-grid article {
  min-height: 10rem;
  padding: 1.15rem 1.2rem;
  opacity: 0;
  transform: translateY(1.6rem) scale(0.975);
  transition:
    opacity 620ms ease,
    transform 760ms var(--spring-standard),
    box-shadow 260ms ease,
    background-color 220ms ease;
}

.why.is-visible .principle-grid article {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.why.is-visible:not(.is-settled) .principle-grid article:nth-child(1) {
  transition-delay: 80ms;
}

.why.is-visible:not(.is-settled) .principle-grid article:nth-child(2) {
  transition-delay: 140ms;
}

.why.is-visible:not(.is-settled) .principle-grid article:nth-child(3) {
  transition-delay: 200ms;
}

.why.is-visible:not(.is-settled) .principle-grid article:nth-child(4) {
  transition-delay: 260ms;
}

.principle-grid span,
.product-kicker {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.principle-grid h3 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.22;
  letter-spacing: -0.01em;
  font-weight: 650;
}

.principle-grid p {
  margin: 0.7rem 0 0;
  color: var(--muted-strong);
  line-height: 1.48;
  letter-spacing: 0;
}

.lineup-top {
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  text-align: center;
}

.lineup-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  align-items: stretch;
}

.lineup-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 0;
  min-height: 20rem;
  padding: 2rem 1.45rem 1.5rem;
  border-radius: var(--radius-large);
  background: var(--card-bg);
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  box-shadow: var(--shadow-material);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  text-align: center;
  opacity: 0;
  transform: translateY(2rem) scale(0.965);
  transition:
    opacity 620ms ease,
    transform 820ms var(--spring-standard),
    box-shadow 260ms ease,
    background-color 220ms ease;
  will-change: transform, opacity;
}

.lineup.is-visible .lineup-item {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.lineup.is-settled .lineup-item {
  transition:
    background-color 170ms ease,
    box-shadow 220ms ease,
    transform 260ms var(--spring-card);
}

.lineup.is-visible:not(.is-settled) .lineup-item:nth-child(1) {
  transition-delay: 90ms;
}

.lineup.is-visible:not(.is-settled) .lineup-item:nth-child(2) {
  transition-delay: 150ms;
}

.lineup.is-visible:not(.is-settled) .lineup-item:nth-child(3) {
  transition-delay: 210ms;
}

.lineup.is-visible:not(.is-settled) .lineup-item:nth-child(4) {
  transition-delay: 270ms;
}

.lineup.is-visible:not(.is-settled) .lineup-item:nth-child(5) {
  transition-delay: 330ms;
}

.lineup.is-visible:not(.is-settled) .lineup-item:nth-child(6) {
  transition-delay: 390ms;
}

.lineup-item img {
  width: 7.25rem;
  height: 7.25rem;
  border-radius: 23%;
  margin-bottom: 1.45rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.16);
  transition: transform 300ms var(--spring-card), box-shadow 240ms ease;
  will-change: transform;
}

.lineup-item h3 {
  margin: 0.08rem 0 0;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.lineup-item>div {
  min-width: 0;
}

.lineup-item p:not(.product-kicker) {
  min-height: 4.2rem;
  margin: 0.8rem auto 0;
  color: var(--muted-strong);
  max-width: 20rem;
  overflow-wrap: anywhere;
}

.lineup-actions {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1.55rem;
  width: 100%;
  min-height: 2.75rem;
  margin-top: auto;
}

.lineup-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0;
  color: var(--blue);
  font-size: 1rem;
  line-height: 1.2;
  font-weight: 400;
  white-space: nowrap;
}

.lineup-link span:last-child {
  margin-left: 0.24em;
  font-size: 1.22em;
  line-height: 0.8;
  transform: translateY(-0.02rem);
}

.lineup-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0 1.42rem;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: var(--blue);
  font: inherit;
  font-size: 1rem;
  line-height: 1.2;
  font-weight: 500;
  cursor: pointer;
  box-shadow: none;
}

.support {
  margin-top: 0;
}

.social {
  background: var(--section-bg);
}

.support-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  text-align: center;
  padding-block: 3.75rem;
}

.support-inner>* {
  opacity: 0;
  transform: translateY(1.4rem) scale(0.985);
  transition:
    opacity 620ms ease,
    transform 760ms var(--spring-standard);
}

.support.is-visible .support-inner>* {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.support.is-visible:not(.is-settled) .support-inner> :nth-child(2) {
  transition-delay: 120ms;
}

.support-inner>div {
  max-width: 48rem;
}

.support p {
  max-width: 42rem;
  margin: 1rem auto 0;
  color: var(--muted-strong);
  font-size: 1.12rem;
}

.social-inner {
  display: grid;
  grid-template-columns: minmax(16rem, 0.82fr) minmax(0, 1.18fr);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 4rem);
  padding-block: 4rem;
}

.social-profile {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  min-width: 0;
}

.social-profile>img {
  width: clamp(4.25rem, 8vw, 5.8rem);
  height: clamp(4.25rem, 8vw, 5.8rem);
  flex: 0 0 auto;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow-tight);
}

.social-profile h2 {
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.018em;
  font-weight: 740;
}

.social-profile p {
  max-width: 26rem;
  margin: 0.7rem 0 0;
  color: var(--muted-strong);
  font-size: 1.05rem;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.social-card {
  display: grid;
  justify-items: center;
  gap: 0.72rem;
  min-width: 0;
  min-height: 8.5rem;
  padding: 1.25rem 0.85rem 1.1rem;
  border-radius: var(--radius-large);
  background: var(--card-bg);
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  box-shadow: var(--shadow-material);
  color: inherit;
  text-align: center;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  opacity: 0;
  transform: translateY(1.4rem) scale(0.975);
  transition:
    opacity 620ms ease,
    transform 760ms var(--spring-standard),
    box-shadow 260ms ease,
    background-color 220ms ease;
  will-change: transform, opacity;
}

.social-card img {
  width: clamp(3rem, 5vw, 3.6rem);
  height: clamp(3rem, 5vw, 3.6rem);
  border-radius: 23%;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.13);
  transition: transform 260ms var(--spring-card), box-shadow 220ms ease;
  will-change: transform;
}

.social-card span {
  max-width: 100%;
  font-size: 0.92rem;
  font-weight: 650;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.social.is-visible .social-card,
.social.is-visible .social-profile {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.social-profile {
  opacity: 0;
  transform: translateY(1.4rem) scale(0.985);
  transition:
    opacity 620ms ease,
    transform 760ms var(--spring-standard);
}

.social.is-settled .social-card {
  transition:
    background-color 170ms ease,
    box-shadow 220ms ease,
    transform 260ms var(--spring-card);
}

.social.is-visible:not(.is-settled) .social-grid .social-card:nth-child(1) {
  transition-delay: 100ms;
}

.social.is-visible:not(.is-settled) .social-grid .social-card:nth-child(2) {
  transition-delay: 160ms;
}

.social.is-visible:not(.is-settled) .social-grid .social-card:nth-child(3) {
  transition-delay: 220ms;
}

.social.is-visible:not(.is-settled) .social-grid .social-card:nth-child(4) {
  transition-delay: 280ms;
}

.site-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  color: var(--muted);
  box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.04);
  font-size: 0.82rem;
  text-align: center;
}

.beian-link {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--duration-fast) ease;
}

.beian-link:hover {
  color: var(--blue);
  text-decoration: underline;
}

.section-reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity 620ms ease,
    transform 760ms var(--spring-standard);
  will-change: opacity, transform;
}

.section-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .nav-menu:hover .product-menu {
    clip-path: inset(0 0 0 0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-menu:hover .product-menu-group {
    opacity: 1;
    transform: translateY(0);
  }

  .nav-menu:hover .product-menu-group:nth-child(1) {
    transition-delay: 70ms;
  }

  .nav-menu:hover .product-menu-group:nth-child(2) {
    transition-delay: 95ms;
  }

  .principle-grid article:hover,
  .lineup.is-visible .lineup-item:hover {
    background: color-mix(in srgb, var(--card-bg) 92%, white);
    transform: translateY(-0.18rem) scale(1.008);
    box-shadow: var(--shadow-card-lift);
  }

  .lineup.is-visible .lineup-item:hover img {
    transform: translateY(-0.05rem) scale(1.02);
    box-shadow:
      0 1px 0 rgba(255, 255, 255, 0.78) inset,
      0 22px 46px rgba(0, 0, 0, 0.18),
      0 4px 12px rgba(0, 0, 0, 0.13);
  }

  .product-orbit-link:hover img,
  .product-orbit-link:focus-visible img {
    transform: translateY(-0.12rem) scale(1.08);
    box-shadow:
      0 1px 0 rgba(255, 255, 255, 0.78) inset,
      0 28px 58px rgba(0, 0, 0, 0.2),
      0 4px 12px rgba(0, 0, 0, 0.13);
  }

  .product-orbit-link:hover .product-orbit-label,
  .product-orbit-link:focus-visible .product-orbit-label {
    opacity: 1;
    transform: translate(-50%, 0) scale(1);
  }

  .product-orbit-link:active img,
  .product-orbit-link.is-pressing img {
    transform: translateY(-0.04rem) scale(1.03);
  }

  .social.is-visible .social-card:hover {
    background: color-mix(in srgb, var(--section-bg-soft) 86%, white);
    transform: translateY(-0.18rem) scale(1.008);
    box-shadow:
      0 1px 0 rgba(255, 255, 255, 0.76) inset,
      0 16px 38px rgba(0, 0, 0, 0.11);
  }

  .social.is-visible .social-card:hover img {
    transform: translateY(-0.05rem) scale(1.02);
    box-shadow:
      0 1px 0 rgba(255, 255, 255, 0.78) inset,
      0 14px 30px rgba(0, 0, 0, 0.18),
      0 4px 12px rgba(0, 0, 0, 0.13);
  }

  .lineup-item.pressable:active,
  .lineup-item.pressable.is-pressing,
  .social.is-visible .social-card.pressable:active,
  .social.is-visible .social-card.pressable.is-pressing {
    transform: translateY(-0.04rem) scale(0.992);
  }
}

@media (max-width: 900px) {
  .main-nav {
    gap: 1.1rem;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    height: auto;
    min-height: auto;
    max-height: none;
    padding-top: 6rem;
    padding-bottom: 4rem;
    text-align: center;
  }

  .hero::before {
    inset: -12% -30% 36% -22%;
    opacity: 0.82;
  }

  .hero::after {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.5) 66%, rgba(255, 255, 255, 0.94) 100%);
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-portrait {
    order: -1;
  }

  .portrait-stage {
    width: min(22rem, 82vw);
  }

  .lineup-list {
    grid-template-columns: 1fr 1fr;
  }

  .social-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social-profile {
    justify-content: center;
  }
}

@media (max-width: 640px) {
  :root {
    font-size: 16px;
  }

  .site-header {
    padding-inline: 0.85rem;
    gap: clamp(1rem, 4vw, 1.8rem);
  }

  .product-menu {
    position: fixed;
    top: 2.75rem;
    left: 0;
    right: 0;
    min-height: 0;
    max-height: calc(100svh - 2.75rem);
    overflow-y: auto;
    padding: 1.25rem 1rem 1.65rem;
    transform-origin: 50% 0;
  }

  .nav-menu:focus-within .product-menu,
  .nav-menu.is-open .product-menu {
    transform: translateY(0);
  }

  .product-menu-inner {
    grid-template-columns: 1fr;
    width: 100%;
    gap: 1.35rem;
  }

  .product-menu-group {
    transform: translateY(-0.25rem);
  }

  .product-menu-primary a {
    min-height: 2.08rem;
    font-size: 1.18rem;
  }

  .product-menu-secondary {
    padding-top: 0.25rem;
    border-top: 1px solid var(--line);
  }

  .product-menu-secondary a {
    min-height: 1.85rem;
    font-size: 0.84rem;
  }

  .hero-inner {
    padding-inline: 1rem;
  }

  .hero h1 {
    font-size: clamp(3.3rem, 18vw, 5.2rem);
  }

  .hero-subtitle {
    font-size: 1.05rem;
    line-height: 1.45;
    max-width: 22rem;
    margin-inline: auto;
  }

  .section-heading h2,
  .lineup h2,
  .support h2 {
    font-size: 2.45rem;
    line-height: 1.08;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .portrait-stage {
    width: min(20rem, 76vw);
  }

  .section-inner {
    padding: 4rem 1rem;
  }

  .principle-grid {
    grid-template-columns: 1fr;
  }

  .lineup-list {
    grid-template-columns: 1fr;
  }

  .social-grid {
    grid-template-columns: 1fr 1fr;
  }

  .social-profile {
    flex-direction: column;
  }

  .social-card {
    min-height: 7.75rem;
    padding-inline: 0.7rem;
  }

  .lineup-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.9rem;
    min-height: 12rem;
    padding: 1rem;
    border-radius: var(--radius-medium);
    overflow: hidden;
    text-align: center;
  }

  .lineup-item img {
    width: 3.35rem;
    height: 3.35rem;
    margin-bottom: 0;
  }

  .product-orbit-label {
    display: none;
  }

  .lineup-actions {
    gap: 1.1rem;
    min-height: 2.6rem;
    margin-top: 0.05rem;
  }

  .lineup-download,
  .lineup-link {
    min-height: 2.6rem;
    font-size: 0.98rem;
  }

  .lineup-item p:not(.product-kicker) {
    font-size: 0.96rem;
    line-height: 1.42;
    max-width: 17rem;
    margin-inline: auto;
    word-break: break-word;
  }

  .lineup-top,
  .support-inner,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

}

/* 蓝河核心功能：标准 CSS Grid Bento 布局，无滚动接管。 */
.lanhe-showcase {
  min-height: 0;
  background: var(--section-bg);
}

.lanhe-showcase-inner {
  box-sizing: border-box;
  position: static;
  display: block;
  min-height: 0;
  padding-block: 4rem;
}

.lanhe-showcase-heading {
  max-width: none;
}

.lanhe-bento-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(0.8rem, 1.6vw, 1.25rem);
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
}

.lanhe-bento-card {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: clamp(0.8rem, 1.2vw, 1.15rem);
  min-width: 0;
  padding: clamp(1rem, 1.5vw, 1.35rem);
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: var(--radius-large);
  background: var(--card-bg);
  box-shadow: var(--shadow-material);
  overflow: hidden;
  transition:
    background-color 220ms ease,
    box-shadow 260ms var(--spring-card),
    transform 260ms var(--spring-card);
}

.lanhe-bento-card--hero {
  grid-column: span 7;
}

.lanhe-bento-card--network {
  grid-column: span 5;
}

.lanhe-bento-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.lanhe-bento-card h3 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 720;
}

.lanhe-bento-card-info p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.85rem, 1vw, 0.95rem);
  line-height: 1.45;
}

.lanhe-screenshot-slot {
  position: relative;
  width: 100%;
  height: clamp(16rem, 24vw, 22rem);
  margin-top: 0.2rem;
  overflow: hidden;
  border-radius: calc(var(--radius-large) - 0.5rem);
  border: 1px solid color-mix(in srgb, var(--line) 45%, transparent);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--blue) 5%, transparent), transparent 60%),
    color-mix(in srgb, var(--section-bg-soft) 85%, var(--card-bg));
}

.lanhe-screenshot-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: calc(var(--radius-large) - 0.55rem);
  transition: transform 380ms var(--spring-card);
}

.lanhe-screenshot-slot--hero {
  height: clamp(15rem, 22vw, 20rem);
}

.lanhe-screenshot-slot--hero img {
  object-fit: cover;
  object-position: center top;
}

.lanhe-screenshot-slot--contain {
  display: flex;
  align-items: center;
  justify-content: center;
}

.lanhe-screenshot-slot--contain img {
  object-fit: contain;
  padding: 0.6rem;
}

@media (hover: hover) and (pointer: fine) {
  .lanhe-bento-card:hover {
    background: color-mix(in srgb, var(--card-bg) 94%, white);
    box-shadow: var(--shadow-card-lift);
    transform: translateY(-0.25rem);
  }

  .lanhe-bento-card:hover .lanhe-screenshot-slot img {
    transform: scale(1.028);
  }
}

@media (max-width: 900px) {

  .lanhe-bento-card,
  .lanhe-bento-card--hero,
  .lanhe-bento-card--network {
    grid-column: span 6;
  }
}

@media (max-width: 640px) {
  .lanhe-bento-grid {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  .lanhe-bento-card,
  .lanhe-bento-card--hero,
  .lanhe-bento-card--network {
    grid-column: auto;
    padding: 0.9rem;
    border-radius: var(--radius-medium);
  }

  .lanhe-bento-card h3 {
    font-size: 1.1rem;
  }

  .lanhe-screenshot-slot {
    height: clamp(15rem, 75vw, 25rem);
    border-radius: calc(var(--radius-medium) - 0.3rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

  .pressable,
  .product-menu,
  .product-menu-group,
  .lineup-item,
  .lineup-item img,
  .product-orbit-link,
  .product-orbit img,
  .product-orbit-label,
  .social-card,
  .social-card img,
  .principle-grid article,
  .support-inner>*,
  .social-profile,
  .hero-copy,
  .hero-copy>*,
  .hero-portrait,
  .portrait-stage,
  .portrait-stage::before,
  .portrait-image,
  .site-header {
    transition-property: background-color, color, opacity, box-shadow;
    transition-duration: 160ms;
    animation: none !important;
  }

  .section-reveal {
    opacity: 1;
    transform: none;
    transition: opacity 160ms ease !important;
  }

  .hero-copy>*,
  .hero-portrait,
  .portrait-stage::before,
  .portrait-image,
  .product-orbit-link,
  .lineup-item,
  .social-card,
  .social-profile,
  .principle-grid article,
  .support-inner>* {
    opacity: 1;
    transform: none !important;
  }

  .pressable:active,
  .pressable.is-pressing,
  .product-orbit-link:hover img,
  .product-orbit-link:focus-visible img,
  .product-orbit-link:active img,
  .product-orbit-link.is-pressing img,
  .lineup-item:hover {
    transform: none;
  }
}

@keyframes orbit-arrive {
  0% {
    opacity: 0;
    transform: translateY(0.9rem) scale(0.78);
  }

  62% {
    opacity: 1;
    transform: translateY(-0.18rem) scale(1.045);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-transparency: reduce) {

  .site-header,
  .product-menu,
  .lineup-item,
  .social-card,
  .principle-grid article {
    background: var(--material-heavy);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .hero::before {
    filter: none;
    opacity: 0.36;
  }
}

@media (prefers-contrast: more) {
  :root {
    --line: rgba(0, 0, 0, 0.32);
  }

  .site-header,
  .product-menu,
  .lineup-item,
  .social-card,
  .principle-grid article {
    border: 1px solid var(--line);
  }

  .product-orbit-label {
    border: 1px solid var(--line);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --page-bg: #000;
    --section-bg: #101012;
    --section-bg-soft: #161617;
    --card-bg: #1c1c1e;
    --card-bg-soft: rgba(28, 28, 30, 0.82);
    --text: #f5f5f7;
    --muted: #86868b;
    --muted-strong: #d2d2d7;
    --line: rgba(255, 255, 255, 0.14);
    --nav-bg: #000000;
    --material: rgba(22, 22, 23, 0.72);
    --material-heavy: rgba(22, 22, 23, 0.94);
    --shadow-soft: 0 18px 60px rgba(0, 0, 0, 0.44);
    --shadow-tight: 0 10px 30px rgba(0, 0, 0, 0.32);
    --shadow-material: 0 1px 0 rgba(255, 255, 255, 0.08) inset, 0 18px 44px rgba(0, 0, 0, 0.36);
  }

  .hero {
    background:
      radial-gradient(circle at 74% 42%, rgba(74, 137, 184, 0.16), transparent 33rem),
      linear-gradient(180deg, #111820 0%, #10151b 42%, #0f1115 100%);
  }

  .hero::before {
    background:
      radial-gradient(circle at 50% 44%, rgba(255, 255, 255, 0.08), transparent 19rem),
      radial-gradient(circle at 72% 58%, rgba(90, 160, 205, 0.16), transparent 18rem);
    opacity: 0.7;
  }

  .product-orbit-label {
    background: rgba(28, 28, 30, 0.78);
    box-shadow:
      0 1px 0 rgba(255, 255, 255, 0.1) inset,
      0 12px 30px rgba(0, 0, 0, 0.32);
  }

  .hero::after {
    background:
      linear-gradient(180deg, rgba(16, 18, 22, 0) 0%, rgba(16, 18, 22, 0.58) 72%, rgba(16, 16, 18, 0.92) 100%),
      linear-gradient(115deg, rgba(16, 18, 22, 0.82) 0%, rgba(16, 18, 22, 0.48) 34%, rgba(16, 18, 22, 0.12) 72%, rgba(16, 18, 22, 0) 100%);
  }

  .lineup-item,
  .principle-grid article,
  .social-card,
  .download-summary,
  .product-menu {
    background: rgba(28, 28, 30, 0.9);
  }

  .product-menu a:hover,
  .product-menu a:focus-visible {
    color: var(--blue);
  }
}


.product-page main {
  background: var(--page-bg);
}

.product-hero {
  background:
    radial-gradient(circle at 70% 44%, rgba(0, 113, 227, 0.22), transparent 32rem),
    radial-gradient(circle at 24% 12%, rgba(48, 209, 88, 0.12), transparent 26rem),
    linear-gradient(180deg, #7ecef4 0%, #bae6fc 52%, #f0f9ff 100%);
}

.product-hero-inner {
  min-height: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 6.3rem 1.25rem 3.4rem;
  text-align: center;
}

.product-hero-copy {
  max-width: 38rem;
}

.product-hero-copy>* {
  opacity: 0;
  transform: translateY(1.6rem) scale(0.985);
}

.product-hero.is-visible .product-hero-copy>* {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition:
    opacity 760ms ease,
    transform 880ms var(--spring-standard);
}

.product-hero.is-visible .product-hero-copy> :nth-child(1) {
  transition-delay: 60ms;
}

.product-hero.is-visible .product-hero-copy> :nth-child(2) {
  transition-delay: 120ms;
}

.product-hero.is-visible .product-hero-copy> :nth-child(3) {
  transition-delay: 180ms;
}

.product-hero.is-visible .product-hero-copy> :nth-child(4) {
  transition-delay: 240ms;
}

.product-hero-icon {
  width: 5.6rem;
  height: 5.6rem;
  border-radius: 23%;
  margin: 0 auto 0.95rem;
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.18);
}

.product-hero h1 {
  margin: 0;
  font-size: 5.4rem;
  line-height: 1.04;
  letter-spacing: 0;
  font-weight: 760;
  font-optical-sizing: auto;
  overflow-wrap: anywhere;
}

.product-hero .hero-subtitle {
  max-width: 26rem;
  margin-inline: auto;
  margin-top: 0.85rem;
  font-size: 1.28rem;
  line-height: 1.35;
  letter-spacing: 0;
  font-weight: 520;
  color: var(--muted-strong);
}

.monster-boost-feature,
.product-download {
  background: var(--section-bg);
}

.download-panel {
  display: grid;
  gap: 1rem;
  padding-block: 4rem;
}

.download-summary {
  border-radius: var(--radius-large);
  background: var(--card-bg);
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  box-shadow: var(--shadow-material);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
}

.download-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 20rem);
  align-items: center;
  gap: clamp(1.2rem, 4vw, 2.4rem);
  padding: clamp(1.35rem, 4vw, 2.35rem);
}

.section-kicker {
  margin: 0 0 0.55rem;
  color: var(--blue);
  font-size: 0.86rem;
  font-weight: 720;
}

.download-summary h2 {
  margin: 0;
  max-width: 14ch;
  font-size: 2.75rem;
  line-height: 1.12;
  letter-spacing: 0;
  font-weight: 760;
  overflow-wrap: anywhere;
}

.download-summary p:not(.section-kicker) {
  max-width: 45rem;
  margin: 0.9rem 0 0;
  color: var(--muted-strong);
  font-size: clamp(1.05rem, 1.8vw, 1.32rem);
  line-height: 1.42;
  font-weight: 540;
}

.download-version-card {
  display: grid;
  gap: 0.65rem;
  justify-items: start;
  min-width: 0;
}

.download-version-card strong {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  font-size: clamp(1.4rem, 2.3vw, 1.8rem);
  line-height: 1.2;
  font-weight: 760;
  overflow-wrap: anywhere;
}

.version-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.18rem 0.5rem;
  margin-left: 0.45rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.15;
  color: #ffffff;
  background: var(--blue);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--blue) 30%, transparent);
  letter-spacing: 0.02em;
  vertical-align: bottom; /* 靠下与“蓝河工具箱”软件名字底部对齐 */
  transform: translateY(-0.15em);
}

.download-version-card [data-update-date] {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 620;
}

.download-update-list {
  display: grid;
  gap: 0.4rem;
  margin: 0.15rem 0 0;
  padding: 0;
  list-style: none;
}

.download-update-list li {
  position: relative;
  padding-left: 0.9rem;
  color: var(--muted-strong);
  font-size: 0.92rem;
  line-height: 1.38;
  font-weight: 560;
  overflow-wrap: anywhere;
}

.download-update-list li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 0.32rem;
  height: 0.32rem;
  border-radius: 50%;
  background: var(--blue);
}

.download-version-card .primary-button {
  margin-top: 0.35rem;
}

.download-dialog {
  position: fixed;
  z-index: 60;
  inset: 0;
  display: grid;
  place-items: center;
  padding: max(1rem, env(safe-area-inset-top)) 1rem max(1rem, env(safe-area-inset-bottom));
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fast) ease;
}

.download-dialog.is-open {
  opacity: 1;
  pointer-events: auto;
}

.download-dialog.is-closing {
  opacity: 1;
  pointer-events: none;
}

.download-dialog-scrim {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(10px) saturate(110%);
  -webkit-backdrop-filter: blur(10px) saturate(110%);
  transition: opacity var(--duration-fast) ease;
}

.download-sheet {
  position: relative;
  width: min(31rem, 100%);
  max-height: min(42rem, calc(100svh - 2rem));
  overflow: auto;
  overscroll-behavior: contain;
  padding: clamp(1.15rem, 4vw, 1.55rem);
  border-radius: 24px;
  background: var(--card-bg-soft);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset, 0 24px 72px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  opacity: 0;
  transform: translateY(0.85rem) scale(0.975);
  transform-origin: 50% 82%;
  transition:
    opacity var(--duration-fast) ease,
    transform var(--duration-slow) var(--spring-card);
  will-change: transform, opacity, filter;
}

.download-dialog.is-open .download-sheet {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.download-close {
  position: absolute;
  top: 0.95rem;
  right: 0.95rem;
  display: grid;
  place-items: center;
  width: 1.85rem;
  height: 1.85rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: color-mix(in srgb, var(--muted) 12%, transparent);
  color: var(--muted-strong);
  cursor: pointer;
  transition:
    background-color var(--duration-fast) ease,
    color var(--duration-fast) ease,
    transform var(--duration-fast) var(--spring-press);
}

.download-close svg {
  width: 0.72rem;
  height: 0.72rem;
  display: block;
  pointer-events: none;
}

.download-close:hover {
  background: color-mix(in srgb, var(--muted) 22%, transparent);
  color: var(--text);
}

.download-close:active {
  transform: scale(0.92);
}

.download-dialog-content {
  display: grid;
  gap: 0.9rem;
}

.download-dialog-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  align-items: center;
  padding-right: 2.2rem;
}

.download-dialog-app-icon {
  width: 3.65rem;
  height: 3.65rem;
  border-radius: 23%;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.72) inset,
    0 12px 24px rgba(0, 0, 0, 0.14),
    0 3px 9px rgba(0, 0, 0, 0.1);
  transition:
    box-shadow 220ms ease,
    transform 260ms var(--spring-card);
  will-change: transform;
}

.download-dialog-header h2 {
  margin: 0;
  font-size: clamp(1.65rem, 5vw, 2.35rem);
  line-height: 1.08;
  font-weight: 740;
  letter-spacing: -0.014em;
  overflow-wrap: anywhere;
}

.download-dialog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.18rem 0.5rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.32;
  font-weight: 620;
}

.download-dialog-meta span {
  display: inline-flex;
  align-items: center;
}

.download-dialog-meta span+span::before {
  content: "";
  width: 0.22rem;
  height: 0.22rem;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.48;
}

.download-dialog-note {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.35;
  font-weight: 620;
}

.download-provider-list {
  display: grid;
  gap: 0.65rem;
  padding-top: 0.1rem;
}

.download-provider {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  min-height: 3.85rem;
  padding: 0.62rem 0.78rem;
  border-radius: 18px;
  background: var(--section-bg-soft);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.72) inset;
  transition:
    background-color 170ms ease,
    box-shadow 220ms ease,
    transform 260ms var(--spring-card);
  will-change: transform;
}

.download-provider img {
  width: 2.38rem;
  height: 2.38rem;
  border-radius: 22%;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.68) inset,
    0 10px 22px rgba(0, 0, 0, 0.16),
    0 3px 8px rgba(0, 0, 0, 0.12);
  transition:
    box-shadow 220ms ease,
    transform 260ms var(--spring-card);
  will-change: transform;
}

.download-provider span {
  min-width: 0;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.download-provider-name {
  display: flex;
  flex-wrap: wrap;
  gap: 0.28rem 0.42rem;
  align-items: baseline;
}

.download-provider-badge,
.download-provider-pending {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.2;
  font-weight: 650;
}

.download-provider-badge {
  color: var(--blue);
}

.download-provider-pending {
  opacity: 0.78;
}

.download-provider.is-pending {
  cursor: default;
}

.download-provider.is-pending .download-provider-arrow {
  opacity: 0;
}

.download-provider-arrow {
  width: 0.54rem;
  height: 0.54rem;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  color: var(--muted);
  transform: rotate(45deg);
  transition:
    color 170ms ease,
    transform 260ms var(--spring-card);
  will-change: transform;
}

.has-download-dialog {
  overflow: hidden;
}

@media (hover: hover) and (pointer: fine) {

  .download-close:hover {
    background: color-mix(in srgb, var(--muted) 22%, transparent);
    color: var(--text);
    transform: scale(1.06);
  }

  a.download-provider:hover {
    background: color-mix(in srgb, var(--section-bg-soft) 86%, white);
    box-shadow:
      0 1px 0 rgba(255, 255, 255, 0.76) inset,
      0 16px 38px rgba(0, 0, 0, 0.11);
    transform: translateY(-0.18rem) scale(1.008);
  }

  a.download-provider:hover .download-provider-arrow {
    color: var(--blue);
  }

  .lineup-download:hover {
    background: var(--blue-pressed);
  }

  .lineup-link:hover span:first-child {
    text-decoration: underline;
    text-underline-offset: 0.16em;
  }

  .lineup-download:active,
  .lineup-download.is-pressing,
  a.download-provider:active,
  a.download-provider.is-pressing {
    transform: translateY(-0.04rem) scale(0.992);
  }
}

@media (max-width: 900px) {
  .product-hero-inner {
    grid-template-columns: 1fr;
    height: auto;
    min-height: auto;
    text-align: center;
  }

  .product-hero-inner {
    padding-top: 6rem;
  }

  .product-hero-copy {
    margin-inline: auto;
  }

  .product-hero-icon {
    margin-inline: auto;
  }

  .download-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .product-page {
    width: 100%;
    max-width: 100vw;
  }

  .product-page main,
  .product-page section,
  .product-page .section-inner {
    width: 100%;
    max-width: 100vw;
  }

  .product-hero h1 {
    font-size: 2.85rem;
  }

  .product-hero .hero-subtitle {
    max-width: 18rem;
    font-size: 1rem;
    line-height: 1.38;
  }

  .product-hero-inner {
    padding-inline: 1rem;
  }

  .download-panel {
    padding-inline: 1rem;
  }

  .download-summary {
    border-radius: var(--radius-medium);
  }

  .download-summary h2 {
    font-size: 1.85rem;
    word-break: break-word;
  }

  .download-version-card {
    width: 100%;
  }

  .download-version-card .primary-button {
    width: 100%;
    justify-content: center;
  }

  .lanhe-showcase-inner {
    padding-inline: 1rem;
  }

  .lanhe-showcase-heading {
    text-align: center;
  }

  .download-dialog {
    align-items: end;
    padding: 0.8rem;
  }

  .download-sheet {
    width: 100%;
    max-height: calc(100svh - 1.5rem);
    padding: 1.15rem;
    border-radius: 24px;
    transform: translateY(1.25rem) scale(0.99);
    transform-origin: 50% 100%;
  }

  .download-dialog-header {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    padding-right: 2.3rem;
    gap: 0.75rem;
  }

  .download-dialog-app-icon {
    width: 3.15rem;
    height: 3.15rem;
  }

  .download-dialog-header h2 {
    font-size: clamp(1.62rem, 7vw, 2.05rem);
    line-height: 1.08;
    letter-spacing: -0.012em;
  }

  .download-dialog-meta {
    display: grid;
    gap: 0.16rem;
    font-size: 0.92rem;
    line-height: 1.34;
  }

  .download-dialog-meta span+span::before {
    display: none;
  }

  .download-provider {
    min-height: 3.8rem;
    border-radius: 18px;
  }

  .download-close {
    top: 1rem;
    right: 1rem;
    width: 1.75rem;
    height: 1.75rem;
  }

}

@media (prefers-reduced-motion: reduce) {

  .product-hero-copy>*,
  .lanhe-bento-card,
  .download-dialog,
  .download-sheet,
  .download-close,
  .download-dialog-app-icon,
  .download-provider,
  .download-provider img,
  .download-provider-arrow,
  main {
    opacity: 1;
    filter: none !important;
    transform: none !important;
    transition: opacity 160ms ease !important;
  }
}

@media (prefers-reduced-transparency: reduce) {

  .download-summary,
  .download-sheet,
  .download-provider {
    background: var(--material-heavy);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

@media (prefers-contrast: more) {

  .lanhe-bento-card,
  .download-summary,
  .download-sheet,
  .download-provider {
    border: 1px solid var(--line);
  }
}

@media (prefers-color-scheme: dark) {
  .product-hero {
    background:
      radial-gradient(circle at 70% 44%, rgba(0, 113, 227, 0.18), transparent 32rem),
      radial-gradient(circle at 24% 12%, rgba(48, 209, 88, 0.1), transparent 26rem),
      linear-gradient(180deg, #111820 0%, #10151b 44%, #0f1115 100%);
  }

  .download-summary {
    background:
      linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
      var(--card-bg);
  }

  .lanhe-showcase {
    background: var(--section-bg);
  }

  .lanhe-bento-card {
    background:
      linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
      var(--card-bg);
  }

  .lanhe-screenshot-slot {
    background: rgba(255, 255, 255, 0.035);
  }
}

/* ==========================================================================
   蓝河工具箱 - 无需散热器打开Monster+和BOOST+模式 板块样式 (Apple Design Style)
   ========================================================================== */
.monster-boost-feature {
  padding-block: clamp(3rem, 5vw, 4.5rem);
  background: var(--section-bg);
  position: relative;
  overflow: hidden;
}

.monster-boost-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-block: 0;
}

.monster-boost-heading {
  max-width: 52rem;
  margin-bottom: clamp(1rem, 2vw, 1.8rem);
}

.monster-boost-heading h2 {
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text);
}

/* 手机外框与视频绝对对齐容器 */
.monster-boost-showcase {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding-inline: 1.25rem;
  box-sizing: border-box;
}

.phone-mockup-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 2376 / 1080;
  margin: 0 auto;
  /* 苹果规范三层悬浮阴影：赋予横屏手机极佳的 3D 悬浮立面质感 */
  filter: 
    drop-shadow(0 36px 72px rgba(0, 0, 0, 0.18)) 
    drop-shadow(0 14px 28px rgba(0, 0, 0, 0.12))
    drop-shadow(0 4px 8px rgba(0, 0, 0, 0.06));
  transition: transform var(--duration-base) var(--spring-card), filter var(--duration-base) var(--spring-card);
}

.phone-mockup-wrapper:hover {
  transform: translateY(-8px) scale(1.012);
  filter: 
    drop-shadow(0 44px 88px rgba(0, 0, 0, 0.24)) 
    drop-shadow(0 18px 36px rgba(41, 151, 255, 0.22))
    drop-shadow(0 6px 12px rgba(0, 0, 0, 0.1));
}

/* 手机框图像 */
.phone-frame-img {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 92%;
  height: 98%;
  z-index: 2;
  pointer-events: none;
  object-fit: fill;
  transform: translate(-50%, -50%);
}

/* 视频：居中放置在手机框内面 */
.phone-screen-video {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 90%;
  height: 92%;
  transform: translate(-50%, -50%);
  object-fit: contain;
  z-index: 1;
  border-radius: clamp(8px, 1.4vw, 18px);
  background-color: #000;
}

/* 明亮模式适配 */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .monster-boost-feature,
  :root:not([data-theme="dark"]) .lanhe-showcase {
    background: #f5f5f7;
    border-bottom-color: rgba(0, 0, 0, 0.08);
  }

  :root:not([data-theme="dark"]) .monster-boost-heading h2 {
    color: #1d1d1f;
  }

  :root:not([data-theme="dark"]) .monster-boost-subtitle {
    color: #86868b;
  }

  :root:not([data-theme="dark"]) .phone-mockup-wrapper {
    filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.12)) drop-shadow(0 10px 15px rgba(0, 0, 0, 0.08));
  }

  :root:not([data-theme="dark"]) .phone-mockup-wrapper:hover {
    filter: drop-shadow(0 35px 70px rgba(0, 0, 0, 0.18)) drop-shadow(0 12px 25px rgba(0, 102, 204, 0.12));
  }
}

/* ==========================================================================
/* ==========================================================================
   蓝河工具箱 - 打开全局插帧 板块样式 (Apple Bottom-Bleed Split Style)
   ========================================================================== */
.global-frame-feature {
  padding-block-start: clamp(3.5rem, 5vw, 4.5rem);
  padding-block-end: 0;
  background: var(--section-bg);
  position: relative;
  overflow: hidden; /* 裁切沉降在底部的手机下半部分 */
}

.global-frame-inner {
  display: grid;
  grid-template-columns: minmax(auto, 440px) minmax(auto, 320px);
  justify-content: center; /* 让左右两栏集中在页面中央 */
  align-items: flex-start;
  gap: clamp(1.5rem, 3vw, 3rem); /* 缩窄列间距，使文字与手机紧密靠拢 */
  height: 380px;
  padding-block: 0;
  position: relative;
}

.global-frame-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  z-index: 2;
}

.global-frame-heading {
  max-width: 100%;
  margin-bottom: 0;
  text-align: left;
}

.global-frame-heading h2 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 0.8rem 0;
  color: var(--text);
}

.global-frame-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--muted);
  margin: 0;
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.005em;
}

.global-frame-showcase {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 1;
}

.phone-mockup-wrapper--portrait {
  position: relative;
  width: 100%;
  max-width: 300px;
  aspect-ratio: 998 / 2108;
  /* 苹果规范三层悬浮阴影：环境弥散晕 + 主光悬浮影 + 悬浮细节阴影 */
  filter: 
    drop-shadow(0 36px 72px rgba(0, 0, 0, 0.18)) 
    drop-shadow(0 14px 28px rgba(0, 0, 0, 0.12))
    drop-shadow(0 4px 8px rgba(0, 0, 0, 0.06));
  transition: transform var(--duration-base) var(--spring-card), filter var(--duration-base) var(--spring-card);
}

/* 关键：手机紧挨左侧文字靠拢，顶端功能全露、下半身下沉 */
.phone-mockup-wrapper--bleed {
  position: absolute;
  top: 10px;
  left: 0;
  width: 300px;
  max-width: 300px;
}

.phone-mockup-wrapper--bleed:hover {
  transform: translateY(-8px) scale(1.015);
  filter: 
    drop-shadow(0 44px 88px rgba(0, 0, 0, 0.24)) 
    drop-shadow(0 18px 36px rgba(41, 151, 255, 0.22))
    drop-shadow(0 6px 12px rgba(0, 0, 0, 0.1));
}

/* 手机框与视频精细贴合 */
.phone-frame-img--portrait {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 97.5%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
  object-fit: fill;
  transform: translate(-50%, -50%);
}

.phone-screen-video--portrait {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 93%;
  height: 97%;
  transform: translate(-50%, -50%);
  object-fit: fill;
  z-index: 1;
  border-radius: clamp(12px, 2.2vw, 24px);
  background-color: #000;
}

/* 响应式适配：中屏与移动端 */
@media (max-width: 960px) {
  .global-frame-inner {
    grid-template-columns: 1fr;
    text-align: center;
    height: auto;
    gap: 2rem;
  }

  .global-frame-heading {
    max-width: 100%;
    text-align: center;
  }

  .global-frame-content {
    height: auto;
  }

  .global-frame-showcase {
    height: 300px;
    display: flex;
    justify-content: center;
    overflow: hidden;
  }

  .phone-mockup-wrapper--bleed {
    position: relative;
    top: 0;
    right: 0;
    max-width: 260px;
  }

  .phone-mockup-wrapper--bleed:hover {
    transform: translateY(-4px) scale(1.012);
  }
}

[hidden] {
  display: none !important;
}