:root {
  color-scheme: light dark;
  --paper: #f6f8f7;
  --surface: #ffffff;
  --ink: #14212b;
  --ink-2: #2b3a45;
  --body: #3e4c57;
  --muted: #536270;
  --line: #dde5e8;
  --chip: #eef3f2;
  --blue: #045c90;
  --blue-hover: #034a74;
  --blue-soft: #e2eef6;
  --on-blue: #ffffff;
  --orange-text: #b8440a;
  --green-text: #24713d;
  --night: #0b1e2c;
  --night-ink: #eef6f7;
  --night-muted: #a6b6bb;
  --night-accent: #6cb8e6;
  --night-line: rgba(238, 246, 247, 0.14);
  --contour: #d3dfe6;
  --shadow: 0 30px 80px rgba(15, 29, 36, 0.2);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0d1518;
    --surface: #152126;
    --ink: #eef6f7;
    --ink-2: #d3dee1;
    --body: #c3d0d4;
    --muted: #a6b6bb;
    --line: rgba(231, 247, 248, 0.13);
    --chip: #1c2c32;
    --blue: #6cb8e6;
    --blue-hover: #9dd0f0;
    --blue-soft: #12304a;
    --on-blue: #0b1e2c;
    --orange-text: #ff8a4c;
    --green-text: #6fd39a;
    --night: #08131c;
    --contour: rgba(238, 246, 247, 0.08);
    --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-underline-offset: 0.18em; }
a:hover { color: var(--blue-hover); }
img, svg { max-width: 100%; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
.top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 32px; padding-top: 20px; padding-bottom: 20px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); font-size: 19px; font-weight: 720; letter-spacing: -0.01em; text-decoration: none; white-space: nowrap; }
.brand:hover { color: var(--ink); }
.brand img { width: 38px; height: 38px; border-radius: 10px; }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; font-size: 15px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav .btn { color: var(--on-blue); }

/* Buttons and small parts */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 26px; border-radius: 999px; background: var(--blue); color: var(--on-blue); font-size: 17px; font-weight: 650; text-decoration: none; }
.btn:hover { background: var(--blue-hover); color: var(--on-blue); }
.btn-sm { min-height: 44px; padding: 0 18px; font-size: 15px; }
.eyebrow { margin: 0; color: var(--blue); font-size: 14px; font-weight: 680; letter-spacing: 0.07em; text-transform: uppercase; }
.title { margin: 0; font-size: clamp(32px, 3.4vw, 44px); line-height: 1.1; letter-spacing: -0.025em; font-weight: 740; }
.lede { margin: 0; color: var(--body); font-size: 19px; line-height: 1.6; }
.chip { padding: 8px 14px; border-radius: 999px; background: var(--chip); color: var(--ink-2); font-size: 14px; }

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: center; gap: 56px; padding-top: 48px; padding-bottom: 88px; }
.hero-copy { display: flex; flex-direction: column; gap: 24px; }
.display { margin: 0; font-size: clamp(42px, 5vw, 66px); line-height: 1.03; letter-spacing: -0.035em; font-weight: 760; }
.hero .lede { max-width: 560px; font-size: 20px; line-height: 1.55; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }
.soon { color: var(--muted); font-size: 16px; }
.checks { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 0; padding: 0; list-style: none; color: var(--body); font-size: 15px; }
.checks li { display: inline-flex; align-items: center; gap: 8px; }
.checks svg { flex: 0 0 18px; }
.hero-art { position: relative; display: flex; justify-content: center; }
.contours { position: absolute; top: 10px; left: 50%; width: 520px; height: 560px; transform: translateX(-50%); color: var(--contour); }

/* Phone frame around the app screenshots */
.phone { position: relative; flex: 0 0 auto; width: 300px; height: 620px; padding: 10px; border-radius: 46px; background: #0f1d24; box-shadow: var(--shadow); }
.screen { width: 100%; height: 100%; overflow: hidden; border-radius: 36px; background: #f1f4f3; }
.screen-shot { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top; }

/* Industry band */
.band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.industries { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; padding-top: 28px; padding-bottom: 28px; }
.industries p { margin: 0; font-weight: 680; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }

/* Sections */
.section { padding-top: 96px; padding-bottom: 96px; }
.section-head { display: flex; flex-direction: column; gap: 14px; max-width: 720px; }
.pillars-section { display: flex; flex-direction: column; gap: 40px; padding-bottom: 40px; }
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.pillar { display: flex; flex-direction: column; gap: 14px; padding: 32px; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); color: var(--ink); text-decoration: none; }
.pillar:hover { color: var(--ink); border-color: var(--blue); }
.pillar h3 { margin: 0; font-size: 23px; letter-spacing: -0.015em; }
.pillar p { margin: 0; color: var(--body); line-height: 1.6; }
.icon-tile { display: flex; align-items: center; justify-content: center; width: 52px; height: 52px; border-radius: 14px; background: var(--blue-soft); color: var(--blue); }

.feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: 64px; }
.feature-flip .feature-art { order: -1; }
.feature-copy { display: flex; flex-direction: column; gap: 20px; }
.ticks { display: flex; flex-direction: column; gap: 14px; margin: 0; padding: 0; list-style: none; color: var(--ink-2); line-height: 1.55; }
.ticks li { display: flex; gap: 12px; }
.ticks svg { flex: 0 0 22px; margin-top: 2px; color: var(--blue); }
.ticks strong { color: var(--ink); }
.feature-art { display: flex; flex-direction: column; align-items: center; gap: 18px; }

/* Export formats */
.formats { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; max-width: 440px; margin: 0; padding: 0; list-style: none; }
.formats li { padding: 7px 13px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); font-size: 14px; font-weight: 600; }

/* Specs */
.night { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--night); color: var(--night-ink); }
.night .eyebrow { color: var(--night-accent); }
.specs-section { display: flex; flex-direction: column; gap: 36px; }
.specs { margin: 0; border-top: 1px solid var(--night-line); line-height: 1.55; }
.spec { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 4px 24px; padding: 16px 0; border-bottom: 1px solid var(--night-line); }
.spec dt { color: var(--night-muted); }
.spec dd { margin: 0; }

/* Privacy */
.privacy-band { background: var(--blue-soft); }
.privacy { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: 40px 64px; padding-top: 88px; padding-bottom: 88px; }
.privacy-copy { display: flex; flex-direction: column; gap: 16px; }
.privacy-copy h2 { margin: 0; font-size: clamp(30px, 3vw, 40px); line-height: 1.12; letter-spacing: -0.025em; font-weight: 740; }
.privacy-copy p { margin: 0; color: var(--ink-2); font-size: 18px; }
.privacy-copy a { font-weight: 650; }
.points { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.points li { display: flex; flex-direction: column; gap: 6px; padding: 20px; border-radius: 16px; background: var(--surface); }
.points span { color: var(--body); font-size: 15px; }

/* FAQ */
.faq-section { max-width: 860px; display: flex; flex-direction: column; gap: 28px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { padding: 20px 0; border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; justify-content: space-between; gap: 16px; cursor: pointer; font-size: 19px; font-weight: 650; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--muted); font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { margin: 12px 0 0; color: var(--body); }

/* Not-found page */
.not-found { display: flex; flex-direction: column; gap: 20px; max-width: 760px; min-height: 52vh; }
.not-found-zh { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--body); }
.not-found-zh h2 { margin: 0 0 8px; color: var(--ink); font-size: 24px; }
.not-found-zh p { margin: 6px 0 0; }

/* Closing call to action and footer */
.cta { margin-bottom: 72px; }
.cta-card { display: flex; flex-direction: column; align-items: center; gap: 18px; padding: 64px 40px; border-radius: 28px; background: #045c90; color: #ffffff; text-align: center; }
.cta-card h2 { margin: 0; font-size: clamp(32px, 3.6vw, 46px); line-height: 1.1; letter-spacing: -0.025em; font-weight: 760; }
.cta-card p { margin: 0; max-width: 560px; color: #d6e8f5; font-size: 19px; }
.cta-card .btn { background: #ffffff; color: #034a74; font-weight: 700; }
.cta-card .btn:hover { background: #e2eef6; color: #034a74; }

.foot-band { border-top: 1px solid var(--line); background: var(--surface); }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px; padding-top: 32px; padding-bottom: 40px; color: var(--muted); font-size: 14px; }
.foot-about { display: flex; flex-direction: column; gap: 6px; }
.foot-about strong { color: var(--ink); font-weight: 650; }
.foot nav { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 8px 22px; }

@media (max-width: 900px) {
  .hero, .feature, .privacy { grid-template-columns: minmax(0, 1fr); }
  .hero { gap: 48px; padding-top: 24px; padding-bottom: 64px; }
  .feature { gap: 40px; }
  .feature-flip .feature-art { order: 0; }
  .pillars { grid-template-columns: minmax(0, 1fr); }
  .section { padding-top: 64px; padding-bottom: 64px; }
  .spec { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  .nav-section, .nav .btn { display: none; }
  .points { grid-template-columns: minmax(0, 1fr); }
  .cta-card { padding: 48px 24px; }
}

@media (max-width: 360px) {
  .wrap { padding: 0 16px; }
  .phone { transform: scale(0.9); transform-origin: top center; margin-bottom: -62px; }
}

@media print {
  .top .nav, .hero-art, .feature-art, .cta { display: none; }
  .hero, .feature, .privacy { grid-template-columns: minmax(0, 1fr); }
}