:root {
  color-scheme: light;
  --paper: #faf8f3;
  --paper-deep: #f1e4d7;
  --ink: #261711;
  --brown: #5a4033;
  --muted: #8d725f;
  --line: #d6bfaa;
  --accent: #ef5638;
  --teal: #1d7770;
  --shadow: 0 24px 70px rgba(77, 51, 35, 0.14);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 86% 18%, rgba(239, 86, 56, 0.1) 0 13%, transparent 13.5%),
    linear-gradient(90deg, rgba(214, 191, 170, 0.14) 1px, transparent 1px),
    linear-gradient(180deg, rgba(214, 191, 170, 0.14) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 34px 34px, 34px 34px, auto;
  color: var(--ink);
  font-family:
    "Avenir Next", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui,
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.pageShell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  width: min(100%, 1480px);
  height: 100dvh;
  margin: 0 auto;
  padding: clamp(18px, 4vh, 44px) clamp(18px, 5vw, 80px);
}

.topBar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 48px;
  padding-bottom: clamp(14px, 2.5vh, 24px);
  border-bottom: 1px solid var(--line);
}

.brandMark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--accent);
  font-size: clamp(22px, 2vw, 34px);
  font-weight: 800;
  text-decoration: none;
}

.brandDot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
}

.topStatus,
.previewMeta p,
.sectionCode,
.launchNotice span,
.supportLine {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 410px);
  gap: clamp(28px, 6vw, 86px);
  align-items: center;
  min-height: 0;
  padding-top: clamp(22px, 5vh, 74px);
}

.sectionCode {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--accent);
}

.sectionCode span {
  display: inline-block;
  width: 38px;
  height: 3px;
  background: var(--accent);
}

h1,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 900px;
  margin: clamp(14px, 2.6vh, 26px) 0 0;
  font-size: clamp(46px, 6vw, 86px);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: 0;
}

.titleCn {
  margin: clamp(8px, 1.4vh, 14px) 0 0;
  color: var(--accent);
  font-size: clamp(22px, 2.8vw, 38px);
  font-weight: 850;
  line-height: 1.1;
}

.heroLead {
  max-width: 820px;
  margin: clamp(16px, 2.6vh, 26px) 0 0;
  color: var(--brown);
  font-size: clamp(16px, 1.45vw, 21px);
  font-weight: 650;
  line-height: 1.58;
}

.heroLead span,
.supportLine span,
.previewMeta span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.heroLead span {
  font-size: 0.92em;
}

.launchNotice {
  display: grid;
  gap: 8px;
  width: min(100%, 620px);
  margin-top: clamp(22px, 4vh, 42px);
  padding: clamp(16px, 2.4vh, 22px) clamp(18px, 2vw, 26px);
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  border-radius: 8px;
  background: var(--paper-deep);
}

.launchNotice strong {
  color: var(--accent);
  font-size: clamp(34px, 4.1vw, 58px);
  line-height: 1.08;
  word-break: keep-all;
}

.supportLine {
  margin-top: clamp(18px, 3vh, 34px);
  color: var(--muted);
}

.previewPanel {
  position: relative;
  display: grid;
  gap: 16px;
  justify-items: center;
  align-self: center;
}

.previewPanel::before {
  position: absolute;
  inset: -30px -18px auto auto;
  width: min(14vw, 170px);
  min-width: 110px;
  aspect-ratio: 1;
  border: 1px solid rgba(239, 86, 56, 0.3);
  border-radius: 50%;
  content: "";
}

.phoneFrame {
  position: relative;
  display: grid;
  width: min(100%, 330px);
  max-height: min(66dvh, 560px);
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border: clamp(7px, 0.8vw, 10px) solid var(--ink);
  border-radius: 34px;
  background: var(--ink);
  box-shadow: var(--shadow);
}

.phoneFrame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
  filter: saturate(0.82) contrast(1.04);
}

.timelineStack {
  position: absolute;
  right: 18px;
  bottom: 22px;
  left: 18px;
  display: grid;
  gap: 7px;
  padding: 12px;
  border: 1px solid rgba(255, 253, 250, 0.38);
  border-radius: 8px;
  background: rgba(38, 23, 17, 0.7);
  backdrop-filter: blur(8px);
}

.timelineStack span {
  height: 9px;
  border-radius: 999px;
  background: var(--accent);
}

.timelineStack span:nth-child(2) {
  width: 73%;
  background: #fffdfa;
}

.timelineStack span:nth-child(3) {
  width: 55%;
  background: var(--teal);
}

.previewMeta {
  width: min(100%, 330px);
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.previewMeta strong {
  display: block;
  margin-top: 7px;
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 1.2;
}

.previewMeta span {
  font-size: 14px;
  font-weight: 750;
}

@media (prefers-reduced-motion: no-preference) {
  .brandDot {
    animation: pulse 2.8s cubic-bezier(0.16, 1, 0.3, 1) infinite;
  }

  .timelineStack {
    animation: floatUp 4.8s cubic-bezier(0.16, 1, 0.3, 1) infinite;
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(0.72);
    opacity: 0.7;
  }
}

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

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: clamp(18px, 3vh, 26px);
    align-content: center;
    padding-top: clamp(12px, 2.5vh, 24px);
  }

  h1 {
    max-width: 420px;
    font-size: clamp(38px, 11vw, 58px);
  }

  .titleCn {
    font-size: clamp(20px, 6vw, 28px);
  }

  .heroLead {
    max-width: 680px;
    font-size: clamp(14px, 3.55vw, 16px);
    line-height: 1.45;
  }

  .launchNotice {
    width: min(100%, 430px);
  }

  .previewPanel {
    justify-items: start;
  }

  .phoneFrame,
  .previewMeta {
    width: min(46vw, 220px);
  }

  .phoneFrame {
    max-height: 27dvh;
  }
}

@media (max-width: 620px) {
  .pageShell {
    padding: 18px 16px;
  }

  .topBar {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .topStatus,
  .sectionCode,
  .supportLine {
    font-size: 11px;
  }

  .sectionCode,
  .supportLine,
  .previewMeta {
    display: none;
  }

  h1 {
    font-size: clamp(34px, 10.5vw, 46px);
  }

  .heroLead {
    margin-top: 12px;
    font-size: clamp(13px, 3.35vw, 15px);
  }

  .launchNotice {
    margin-top: 16px;
    padding: 14px 16px;
  }

  .launchNotice strong {
    font-size: clamp(30px, 10vw, 40px);
  }

  .supportLine {
    margin-top: 14px;
  }

  .phoneFrame,
  .previewMeta {
    width: min(45vw, 172px);
  }

  .phoneFrame {
    max-height: 25dvh;
  }

  .timelineStack {
    right: 10px;
    bottom: 12px;
    left: 10px;
    gap: 5px;
    padding: 8px;
  }

  .timelineStack span {
    height: 6px;
  }
}

@media (max-height: 720px) {
  .previewMeta,
  .supportLine {
    display: none;
  }

  .titleCn {
    font-size: clamp(20px, 3vh, 30px);
  }

  .phoneFrame {
    max-height: 24dvh;
  }
}