:root {
  color-scheme: light;
  --page: #fbfdff;
  --ink: #091224;
  --muted: #5b6780;
  --accent: #3f76f3;
  --accent-hover: #2c62dc;
  --line: #e1eafa;
  --soft-blue: #f0f6ff;
  --container: 1180px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  background: var(--page);
  color: var(--ink);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; font-size: 17px; line-height: 1.65; }
img { display: block; max-width: 100%; height: auto; }
svg { display: block; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid #225dd8; outline-offset: 5px; border-radius: 5px; }
a:hover { color: var(--accent-hover); }
h1, h2, p, figure { margin: 0; }
.container { width: min(var(--container), calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 10; top: 12px; left: 12px; padding: 10px 18px; min-height: 44px; border-radius: 10px; background: var(--ink); color: white; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); color: white; }
.site-header { padding-block: 34px 20px; }
.header-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 18px; min-height: 52px; flex-shrink: 0; }
.brand img { width: 52px; height: 52px; border-radius: 15px; }
.brand span { font-size: 32px; font-weight: 750; letter-spacing: -1px; line-height: 1.2; }
.site-navigation { display: flex; align-items: center; gap: 34px; }
.site-navigation a { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; font-size: 16px; font-weight: 550; white-space: nowrap; }
.hero { background: radial-gradient(ellipse at 66% 54%, #eaf3ff 0, #f7fbff 45%, var(--page) 75%); }
.hero-inner { display: grid; grid-template-columns: .85fr 1.15fr; gap: 38px; align-items: center; min-height: 754px; padding-block: 32px 70px; }
.hero-copy { position: relative; z-index: 1; padding-bottom: 50px; }
.hero h1 { font-size: clamp(54px, 5.3vw, 76px); font-weight: 780; letter-spacing: -3px; line-height: 1.27; }
.hero h1 span { display: block; white-space: nowrap; }
.hero-copy > p { margin-top: 32px; color: var(--muted); font-size: 18px; line-height: 1.8; white-space: nowrap; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 58px; padding: 12px 23px; font-size: 18px; font-weight: 550; line-height: 1.3; white-space: nowrap; }
.button svg { width: 21px; height: 21px; stroke-width: 1.65; }
.button-primary { min-width: 174px; border-radius: 24px; background: var(--accent); color: white; box-shadow: inset 0 1px 0 #ffffff24; transition: background-color .16s ease; }
.button-primary:hover { color: white; background: var(--accent-hover); }
.button-link { padding-inline: 0; color: var(--accent); }
.product-preview { position: relative; min-width: 0; width: 100%; height: 650px; }
.device { position: absolute; padding: 10px; background: #141517; border: 1px solid #b3b9c0; box-shadow: 0 20px 42px #334c6e1c, 0 2px 4px #07172c38, inset 0 0 0 2px #55595d; overflow: hidden; }
.device img { width: 100%; }
.device-pad { width: 78%; top: 0; left: 8%; border-radius: 34px; }
.device-pad img { border-radius: 23px; }
.device-phone { z-index: 2; width: 36%; right: 0; bottom: 10px; padding: 7px; border-radius: 35px; box-shadow: 0 13px 22px #0e25432b, inset 0 0 0 2px #55595d; }
.device-phone img { border-radius: 27px; }
.hero-app-icon { position: absolute; z-index: 3; width: 29%; left: -7%; bottom: 30px; border-radius: 31%; box-shadow: 0 18px 32px #397de024; }
.features { padding-block: 64px 66px; background: white; border-top: 1px solid var(--line); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature { min-width: 0; padding: 4px 22px 8px; text-align: center; }
.feature + .feature { border-left: 1px solid var(--line); }
.feature-icon { display: grid; place-items: center; width: 88px; height: 88px; margin: 0 auto 30px; border-radius: 25px; color: var(--accent); background: linear-gradient(145deg, #f3f8ff, #edf5ff); }
.feature-icon svg { width: 46px; height: 46px; stroke-width: 2.3; }
.feature h2 { font-size: 25px; font-weight: 700; letter-spacing: -.6px; line-height: 1.4; }
.feature p { margin-top: 16px; color: var(--muted); font-size: 17px; line-height: 1.75; }
.trust { position: relative; padding-block: 101px 36px; text-align: center; overflow: hidden; background: linear-gradient(180deg, #f2f7ff, #fbfdff); }
.trust::before { content: ""; position: absolute; top: -48px; left: -5%; width: 110%; height: 93px; background: white; border-radius: 0 0 50% 50%; }
.trust h2 { font-size: 40px; font-weight: 750; letter-spacing: -1.2px; line-height: 1.35; }
.trust > .container > p { margin-top: 18px; color: var(--muted); font-size: 22px; }
.site-footer { max-width: 770px; margin: 36px auto 0; padding-top: 25px; border-top: 1px solid var(--line); color: #52617f; }
.site-footer nav { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; }
.site-footer nav a { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding-inline: 20px; font-size: 15px; line-height: 1.4; }
.site-footer nav a + a { position: relative; }
.site-footer nav a + a::before { content: ""; position: absolute; left: 0; width: 1px; height: 14px; background: #a6b3ca; }
.site-footer > p { margin-top: 2px; font-size: 14px; }

/* Privacy and Terms use the same brand, navigation, type, and content rhythm. */
.legal-page { max-width: 880px; padding-block: 62px 30px; }
.legal-header { margin-bottom: 34px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.legal-header h1 { font-size: clamp(34px, 4vw, 48px); font-weight: 750; line-height: 1.3; letter-spacing: -1px; }
.legal-content { font-size: 17px; line-height: 1.9; overflow-wrap: anywhere; }
.legal-content > * + * { margin-top: 20px; }
.legal-content h2 { margin-top: 38px; font-size: 25px; line-height: 1.5; }
.legal-content h3 { margin-top: 26px; font-size: 20px; line-height: 1.5; }
.legal-content ul, .legal-content ol { padding-left: 1.6em; }
.legal-content li + li { margin-top: 9px; }
.legal-content a { color: #275dcc; text-decoration: underline; text-underline-offset: 3px; }
.legal-content table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.legal-content th, .legal-content td { padding: 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.legal-footer { margin-bottom: 30px; padding-inline: 20px; }

@media (max-width: 1100px) and (min-width: 801px) {
  .container { width: calc(100% - 48px); }
  .hero-inner { gap: 20px; min-height: 720px; }
  .hero h1 { font-size: 62px; }
  .hero-copy > p { font-size: 15px; white-space: normal; }
  .product-preview { height: 570px; }
  .hero-actions { gap: 20px; }
  .button { font-size: 17px; }
  .feature h2 { font-size: 22px; }
  .feature p { font-size: 15px; }
}
@media (max-width: 800px) {
  .container { width: calc(100% - 40px); }
  .site-header { padding-block: 24px 10px; }
  .header-inner { flex-wrap: wrap; justify-content: center; gap: 12px; }
  .brand { gap: 12px; }
  .brand img { width: 44px; height: 44px; border-radius: 13px; }
  .brand span { font-size: 29px; }
  .site-navigation { width: 100%; justify-content: center; gap: 26px; }
  .site-navigation a { font-size: 14px; }
  .hero-inner { grid-template-columns: minmax(0, 1fr); gap: 30px; min-height: 0; padding-block: 48px 45px; }
  .hero-copy { padding-bottom: 0; text-align: center; }
  .hero h1 { font-size: clamp(48px, 8vw, 66px); letter-spacing: -2px; }
  .hero-copy > p { margin-top: 22px; font-size: 16px; white-space: normal; }
  .hero-actions { justify-content: center; gap: 26px; margin-top: 26px; }
  .product-preview { width: min(100%, 580px); height: 630px; margin-inline: auto; }
  .device-pad { width: 73%; left: 9%; }
  .device-phone { width: 35%; bottom: 3px; right: 3%; }
  .hero-app-icon { width: 26%; left: 1%; bottom: 23px; }
  .features { padding-block: 42px 50px; }
  .feature { padding-inline: 13px; }
  .feature-icon { width: 70px; height: 70px; margin-bottom: 22px; border-radius: 22px; }
  .feature-icon svg { width: 40px; height: 40px; }
  .feature h2 { font-size: 19px; letter-spacing: -.4px; }
  .feature p { margin-top: 12px; font-size: 14px; }
  .desktop-break { display: none; }
  .trust { padding-block: 84px 30px; }
  .trust h2 { font-size: 34px; }
  .trust > .container > p { font-size: 18px; }
  .legal-page { padding-top: 38px; }
}
@media (max-width: 520px) {
  .site-navigation { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; }
  .hero-inner { padding-block: 38px 28px; gap: 26px; }
  .hero h1 { font-size: 48px; line-height: 1.28; }
  .hero-copy > p { max-width: 300px; margin-inline: auto; margin-top: 18px; }
  .button { min-height: 52px; font-size: 16px; padding-inline: 17px; }
  .button-primary { min-width: 150px; border-radius: 21px; }
  .button-link { padding-inline: 0; }
  .hero-actions { gap: 20px; }
  .product-preview { height: auto; aspect-ratio: 1 / 1.1; }
  .device { padding: 6px; border-radius: 22px; }
  .device-pad { width: 73%; }
  .device-pad img { border-radius: 16px; }
  .device-phone { padding: 4px; border-radius: 23px; width: 37%; }
  .device-phone img { border-radius: 18px; }
  .hero-app-icon { bottom: 5px; }
  .features { padding-block: 22px 30px; }
  .feature-grid { grid-template-columns: minmax(0, 1fr); }
  .feature { display: grid; grid-template-columns: 66px minmax(0, 1fr); align-items: center; gap: 18px; padding: 24px 0; text-align: left; }
  .feature + .feature { border-left: 0; border-top: 1px solid var(--line); }
  .feature-icon { width: 66px; height: 66px; margin: 0; border-radius: 19px; }
  .feature h2 { font-size: 22px; }
  .feature p { font-size: 15px; margin-top: 6px; }
  .trust { padding-block: 74px 26px; }
  .trust h2 { font-size: 28px; letter-spacing: -.7px; }
  .trust > .container > p { font-size: 16px; max-width: 300px; margin-inline: auto; }
  .site-footer { margin-top: 28px; padding-top: 18px; }
  .site-footer nav a { padding-inline: 14px; font-size: 14px; }
  .site-footer nav a:last-child { width: 100%; }
  .site-footer nav a:last-child::before { display: none; }
  .legal-content { font-size: 16px; }
  .legal-content h2 { font-size: 23px; }
  .legal-footer { padding-inline: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}