:root {
  --bg: #f7efe5;
  --bg-soft: #fff9f3;
  --paper: rgba(255, 251, 247, 0.78);
  --card: rgba(255, 255, 255, 0.84);
  --line: rgba(100, 61, 52, 0.14);
  --text: #2f1e1a;
  --muted: #6c5450;
  --accent: #e75870;
  --accent-deep: #b53c51;
  --accent-soft: #ffd6db;
  --gold: #f3b55d;
  --sage: #d9e6d6;
  --shadow-lg: 0 28px 70px rgba(88, 44, 36, 0.14);
  --shadow-md: 0 18px 40px rgba(88, 44, 36, 0.1);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --content-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(231, 88, 112, 0.16), transparent 28%),
    radial-gradient(circle at 85% 12%, rgba(243, 181, 93, 0.18), transparent 22%),
    linear-gradient(180deg, #fff7ef 0%, #f7efe5 48%, #f2e5d8 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.58), transparent 92%);
}

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

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

.page-shell {
  width: min(calc(100% - 32px), 1320px);
  margin: 16px auto;
  padding: 12px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(100%, var(--content-width));
  margin: 0 auto;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 244, 0.8);
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 30px rgba(101, 59, 47, 0.09);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  box-shadow: 0 12px 24px rgba(230, 89, 112, 0.24);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy em {
  color: var(--muted);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand-copy strong {
  font-size: 17px;
  line-height: 1.1;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
}

.site-nav a {
  position: relative;
  transition: color 180ms ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-cta,
.button-primary,
.button-secondary,
.footer-link {
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.header-cta,
.button-primary {
  color: #fff8f6;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  box-shadow: 0 16px 34px rgba(204, 70, 92, 0.28);
}

.header-cta {
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.button-primary,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
}

.button-secondary,
.footer-link {
  border: 1px solid rgba(96, 61, 53, 0.14);
  background: rgba(255, 255, 255, 0.62);
  color: var(--text);
}

.header-cta:hover,
.button-primary:hover,
.button-secondary:hover,
.footer-link:hover {
  transform: translateY(-2px);
}

.section {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  gap: 44px;
  align-items: center;
  padding: 88px 0 48px;
}

.eyebrow,
.heading-kicker,
.screen-badge,
.panel-tag,
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.eyebrow,
.heading-kicker {
  padding: 9px 14px;
  border: 1px solid rgba(229, 88, 112, 0.14);
  background: rgba(255, 236, 239, 0.72);
  color: var(--accent-deep);
}

.hero h1,
.section-heading h2,
.story-copy h2 {
  margin: 22px 0 0;
  font-family: "Avenir Next Condensed", "Avenir Next", "PingFang SC", sans-serif;
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(2.45rem, 4.2vw, 4rem);
}

.hero-text,
.section-heading p,
.platform-card p,
.roadmap-item p,
.story-points p,
.mini-list span,
.footer-copy p,
.floating-panel p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 58ch;
  margin: 28px 0 0;
  font-size: 1.04rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 14px;
  margin-top: 34px;
}

.hero-stats article,
.feature-card,
.platform-card,
.roadmap-item,
.story-band,
.quick-strip,
.floating-panel,
.phone-card {
  border: 1px solid var(--line);
  background: var(--paper);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

.hero-stats article {
  padding: 18px;
  border-radius: var(--radius-md);
}

.hero-stat-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-stat-card.has-qr {
  padding-bottom: 14px;
}

.hero-stats span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.hero-stats strong {
  display: block;
  margin-top: 10px;
  font-size: 1.05rem;
}

.hero-stat-qr {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 6px;
  padding: 10px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(84, 55, 48, 0.08);
}

.hero-stat-qr img {
  width: min(100%, 118px);
  height: auto;
  border-radius: 12px;
}

.hero-visual {
  position: relative;
  min-height: 620px;
}

.orbit {
  position: absolute;
  border-radius: 999px;
  border: 1px dashed rgba(181, 60, 81, 0.2);
}

.orbit-a {
  inset: 44px 18px auto auto;
  width: 320px;
  height: 320px;
}

.orbit-b {
  inset: auto auto 12px 26px;
  width: 220px;
  height: 220px;
}

.device-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 620px;
}

.phone-card {
  position: relative;
  width: min(100%, 390px);
  padding: 22px;
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 247, 242, 0.78)),
    var(--paper);
  transform: rotate(-5deg);
  animation: floatCard 6s ease-in-out infinite;
}

.phone-primary::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 24px;
  border: 1px solid rgba(231, 88, 112, 0.12);
  pointer-events: none;
}

.phone-top {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.phone-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 16px 0 0 rgba(243, 181, 93, 0.95), 32px 0 0 rgba(114, 156, 100, 0.86);
}

.phone-title {
  margin-left: 36px;
}

.screen-badge {
  margin-top: 24px;
  padding: 10px 14px;
  background: rgba(255, 235, 238, 0.88);
  color: var(--accent-deep);
}

.phone-card h2 {
  margin: 20px 0 0;
  font-size: clamp(1.65rem, 2.5vw, 2.1rem);
  line-height: 1.18;
}

.meter {
  width: 100%;
  height: 14px;
  margin-top: 22px;
  border-radius: 999px;
  background: rgba(229, 214, 205, 0.78);
  overflow: hidden;
}

.meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ed6e84 0%, #f3b55d 100%);
}

.mini-list {
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.mini-list li {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(84, 55, 48, 0.08);
}

.mini-list strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.floating-panel {
  position: absolute;
  width: min(100%, 250px);
  padding: 18px 18px 20px;
  border-radius: 24px;
  background: rgba(255, 251, 247, 0.84);
}

.panel-memory {
  top: 68px;
  right: 0;
  transform: rotate(5deg);
  animation: floatTag 5s ease-in-out infinite;
}

.panel-platform {
  bottom: 44px;
  left: 8px;
  background: rgba(248, 244, 226, 0.9);
  transform: rotate(-7deg);
  animation: floatTag 5.8s ease-in-out infinite;
}

.panel-tag {
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--accent-deep);
}

.floating-panel strong {
  display: block;
  margin-top: 16px;
  font-size: 1.1rem;
}

.floating-panel p {
  margin: 10px 0 0;
  font-size: 0.95rem;
}

.quick-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 18px;
  border-radius: 28px;
  justify-content: center;
}

.quick-strip span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(84, 55, 48, 0.08);
  color: var(--muted);
  font-size: 14px;
}

.section-heading {
  max-width: 760px;
  padding-top: 84px;
}

.section-heading h2 {
  font-size: clamp(2rem, 3.3vw, 3.2rem);
}

.section-heading p {
  max-width: 60ch;
  margin-top: 22px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 34px;
}

.feature-card {
  padding: 28px;
  border-radius: var(--radius-lg);
}

.feature-index {
  display: inline-block;
  color: var(--accent);
  font-family: "Avenir Next Condensed", "Avenir Next", sans-serif;
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.feature-card h3 {
  margin: 18px 0 0;
  font-size: 1.35rem;
}

.feature-card p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.75;
}

.story-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 26px;
  margin-top: 92px;
  padding: 34px;
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(255, 241, 232, 0.92) 0%, rgba(255, 251, 246, 0.86) 58%, rgba(245, 236, 226, 0.88) 100%);
}

.story-copy h2 {
  font-size: clamp(1.95rem, 3vw, 2.9rem);
}

.story-points {
  display: grid;
  gap: 16px;
}

.story-points article {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(84, 55, 48, 0.08);
}

.story-points strong {
  font-size: 1.05rem;
}

.story-points p {
  margin: 8px 0 0;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 34px;
}

.qr-code-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(84, 55, 48, 0.08);
}

.qr-code-frame img {
  width: min(100%, 280px);
  height: auto;
  border-radius: 20px;
}

.platform-card {
  padding: 26px;
  border-radius: 26px;
}

.platform-card.is-live {
  background:
    linear-gradient(180deg, rgba(255, 252, 248, 0.92), rgba(255, 243, 244, 0.84));
}

.platform-card.is-soon {
  background:
    linear-gradient(180deg, rgba(255, 252, 248, 0.92), rgba(245, 244, 235, 0.88));
}

.platform-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.platform-top strong {
  font-size: 1.22rem;
}

.status-pill {
  padding: 8px 12px;
  font-size: 13px;
}

.status-pill.live {
  color: #7d2336;
  background: rgba(252, 216, 223, 0.92);
}

.status-pill.soon {
  color: #7f5a1f;
  background: rgba(247, 232, 197, 0.96);
}

.platform-card p {
  margin: 18px 0 0;
}

.platform-qr {
  margin-top: 22px;
}

.platform-qr-label {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.roadmap-list {
  display: grid;
  gap: 16px;
  margin-top: 34px;
}

.roadmap-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding: 24px;
  border-radius: 26px;
}

.roadmap-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(231, 88, 112, 0.92), rgba(243, 181, 93, 0.94));
  color: #fff7f2;
  font-family: "Avenir Next Condensed", "Avenir Next", sans-serif;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.roadmap-item strong {
  display: block;
  font-size: 1.15rem;
}

.roadmap-item p {
  margin: 10px 0 0;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
  width: min(100%, var(--content-width));
  margin: 92px auto 24px;
  padding: 28px;
  border-top: 1px solid rgba(92, 57, 49, 0.12);
}

.footer-copy strong {
  font-size: 1.15rem;
}

.footer-copy p {
  max-width: 64ch;
  margin: 10px 0 0;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
}

.footer-meta {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

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

@keyframes floatCard {
  0%,
  100% {
    transform: rotate(-5deg) translateY(0);
  }
  50% {
    transform: rotate(-3deg) translateY(-10px);
  }
}

@keyframes floatTag {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@media (max-width: 1100px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 540px;
  }

  .device-stage {
    min-height: 540px;
  }

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

  .story-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(calc(100% - 20px), 1320px);
    margin: 10px auto;
    padding: 6px;
  }

  .site-header {
    position: static;
    flex-wrap: wrap;
    justify-content: center;
    border-radius: 28px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 18px;
  }

  .hero {
    gap: 30px;
    padding-top: 56px;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(2.5rem, 9vw, 4rem);
  }

  .hero-stats,
  .feature-grid,
  .platform-grid {
    grid-template-columns: 1fr;
  }

  .hero-stat-qr img {
    width: min(100%, 160px);
  }

  .hero-visual,
  .device-stage {
    min-height: 500px;
  }

  .section-heading {
    padding-top: 72px;
  }

  .phone-card {
    width: min(100%, 360px);
  }

  .floating-panel {
    width: min(100%, 220px);
  }

  .panel-memory {
    top: 30px;
    right: 4px;
  }

  .panel-platform {
    bottom: 24px;
    left: 0;
  }

  .roadmap-item {
    grid-template-columns: 1fr;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .brand {
    width: 100%;
    justify-content: center;
  }

  .header-cta {
    width: 100%;
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-stats article {
    padding: 16px;
  }

  .button-primary,
  .button-secondary,
  .footer-link {
    width: 100%;
  }

  .platform-card {
    padding: 22px;
  }

  .hero-visual,
  .device-stage {
    min-height: 460px;
  }

  .phone-card {
    transform: none;
    animation: none;
  }

  .phone-card h2 {
    font-size: 1.7rem;
  }

  .section-heading h2,
  .story-copy h2 {
    font-size: clamp(1.8rem, 7vw, 2.25rem);
  }

  .floating-panel {
    position: static;
    width: 100%;
    margin-top: 14px;
    transform: none;
    animation: none;
  }

  .device-stage {
    display: block;
  }

  .orbit {
    display: none;
  }

  .quick-strip {
    justify-content: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0ms !important;
    transition-delay: 0ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}