:root {
  --ink: #232420;
  --muted: #72756d;
  --paper: #f6f4ef;
  --soft: #ebe8df;
  --line: #ded9cc;
  --coral: #e86f58;
  --green: #708f79;
  --gold: #e7bd5f;
  --white: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 28px; }
.topbar {
  height: 78px;
  max-width: 1216px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
}
.topbar nav { display: flex; gap: 34px; color: var(--muted); font-size: 14px; }
.topbar nav a:hover, .toplink:hover { color: var(--coral); }
.toplink { border-bottom: 1px solid var(--ink); font-size: 13px; }

.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  align-items: center;
  gap: 50px;
  padding-top: 42px;
  padding-bottom: 70px;
}
.eyebrow {
  margin: 0 0 16px;
  color: var(--coral);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 650px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6vw, 74px);
  line-height: 1.14;
  letter-spacing: 0;
}
h2 { margin-bottom: 18px; font-size: 42px; line-height: 1.25; letter-spacing: 0; }
.lead, .muted { color: var(--muted); }
.lead { max-width: 560px; font-size: 17px; }
.actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
}
.primary { background: var(--ink); color: var(--white); }
.ghost { border: 1px solid var(--line); color: var(--ink); }
.light { background: var(--white); color: var(--ink); }
.gift {
  display: inline-block;
  margin-top: 30px;
  padding: 9px 14px;
  background: #fff8;
  border: 1px solid var(--line);
  color: var(--green);
  font-size: 13px;
}

.phoneStage { position: relative; min-height: 540px; display: grid; place-items: center; }
.phone {
  position: relative;
  width: 280px;
  height: 545px;
  padding: 18px 14px;
  border: 8px solid #1f211d;
  border-radius: 40px;
  background: #1f211d;
  box-shadow: 0 28px 55px rgba(28, 30, 26, .18);
  overflow: hidden;
}
.phoneTop {
  position: absolute;
  z-index: 2;
  top: 10px;
  left: 50%;
  width: 78px;
  height: 18px;
  transform: translateX(-50%);
  border-radius: 20px;
  background: #1f211d;
}
.phone img, .mockApp {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  object-fit: cover;
  background: #f8f7f2;
}
.mockApp { padding: 34px 18px 18px; }
.mockHead, .mockTabs { display: flex; justify-content: space-between; align-items: center; }
.mockHead span { color: var(--coral); font-size: 12px; }
.mockTabs { margin: 24px 0 16px; color: #9b9d95; font-size: 12px; }
.mockTabs b { color: var(--ink); }
.mockBanner {
  height: 116px;
  padding: 18px;
  border-radius: 10px;
  background: #cbded2;
  font-size: 24px;
  font-weight: 800;
}
.mockCard {
  margin-top: 18px;
  padding: 14px;
  border: 1px solid #e5e2d8;
  border-radius: 8px;
  background: #fff;
}
.mockCard i { display: block; width: 34px; height: 34px; border-radius: 50%; background: var(--coral); }
.mockCard p { margin: 12px 0 0; color: var(--muted); font-size: 12px; }
.mockGrid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.mockGrid span { height: 86px; border-radius: 8px; background: #ead4be; }
.mockGrid span:last-child { background: #d8e2d8; }
.floatNote {
  position: absolute;
  padding: 10px 14px;
  border: 1px solid #fff;
  border-radius: 6px;
  background: rgba(255,255,255,.9);
  box-shadow: 0 15px 30px rgba(30, 35, 28, .12);
  font-size: 13px;
}
.floatNote.top { top: 80px; left: 8%; }
.floatNote.bottom { right: 4%; bottom: 78px; }

.strip { background: var(--ink); color: var(--white); }
.stripInner { min-height: 62px; display: flex; align-items: center; gap: 18px; font-size: 14px; }
.stripInner span { color: var(--gold); font-size: 12px; letter-spacing: .12em; }
.stripInner a { margin-left: auto; color: #dfe7df; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding-top: 72px; padding-bottom: 72px; }
.stats div { border-top: 1px solid var(--ink); padding-top: 18px; }
.stats strong { display: block; font-size: 42px; line-height: 1; }
.stats span { color: var(--muted); font-size: 13px; }

.section { padding-top: 70px; padding-bottom: 90px; }
.sectionHead { max-width: 720px; }
.featureGrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.featureGrid article {
  min-height: 230px;
  padding: 24px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid var(--line);
}
.featureGrid article:nth-child(1) { border-top: 4px solid var(--coral); }
.featureGrid article:nth-child(2) { border-top: 4px solid var(--green); }
.featureGrid article:nth-child(3) { border-top: 4px solid var(--gold); }
.featureGrid span { color: var(--coral); font-family: Georgia, serif; font-style: italic; }
.featureGrid h3 { margin: 42px 0 12px; font-size: 22px; }
.featureGrid p { color: var(--muted); font-size: 14px; }

.proof { background: #e7ece3; }
.proofGrid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: start; }
.security {
  margin-top: 26px;
  padding: 16px;
  border-left: 3px solid var(--green);
  background: rgba(255,255,255,.6);
  color: #607667;
}
.reviews { display: grid; gap: 18px; }
blockquote {
  margin: 0;
  padding: 22px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid #dce3d8;
}
blockquote p { margin-bottom: 12px; }
blockquote footer { color: var(--muted); font-size: 13px; }

.downloadBox {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 50px;
  align-items: center;
  padding: 50px;
  border-radius: 8px;
  background: var(--coral);
  color: var(--white);
}
.downloadBox .eyebrow, .downloadBox .muted { color: #fff0e8; }
.storeBtns { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0; }
.storeBtns a {
  min-width: 170px;
  padding: 13px 16px;
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  font-weight: 800;
}
.tutorial { margin: 0; padding-left: 20px; color: #fff6ef; }
.qrCard {
  padding: 18px;
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  text-align: center;
}
.qrCard img, .qrPlaceholder {
  width: 170px;
  height: 170px;
  margin: 0 auto 12px;
  object-fit: cover;
  border: 1px solid var(--line);
}
.qrPlaceholder { display: grid; place-items: center; color: var(--coral); font-weight: 800; font-size: 30px; }

.referral { background: #dce7df; }
.referralInner { min-height: 330px; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.referral p { max-width: 560px; color: #617062; }
.footer {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 840px) {
  .topbar nav { display: none; }
  .hero, .proofGrid, .downloadBox { grid-template-columns: 1fr; }
  .hero { padding-top: 30px; }
  .phoneStage { min-height: 500px; }
  .featureGrid, .stats { grid-template-columns: 1fr; }
  .downloadBox { padding: 32px 22px; }
  .qrCard { max-width: 240px; }
  .referralInner { display: block; padding-top: 60px; padding-bottom: 60px; }
  h1 { font-size: 46px; }
  h2 { font-size: 34px; }
}