:root {
  --main: #2362ff;
  --main-hover: #1438a5;
  --bg: #f4f7fc;
  --text: #19233c;
  --muted: #516193;
  --card: #ffffff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { font-family: "Microsoft Yahei","PingFang SC",Arial,sans-serif; background: var(--bg); color: var(--text); }

.container { max-width: 980px; margin: 0 auto; padding: 0 18px; }

.header { background: #fff; box-shadow: 0 2px 14px rgba(60,70,120,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--main); letter-spacing: 1px; }
.nav a { margin-left: 16px; text-decoration: none; color: #3a4670; font-weight: 600; }
.nav a:hover { color: var(--main); }

.hero { padding: 42px 0 22px; }
.hero h1 { margin: 0 0 10px; font-size: 1.9rem; }
.hero p { margin: 0; font-size: 1.1rem; color: var(--muted); line-height: 1.7; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin: 28px 0; }
.card { background: var(--card); border-radius: 12px; padding: 22px; box-shadow: 0 1px 12px rgba(35,98,255,.07); border-left: 4px solid var(--main); }
.card h3 { margin: 0 0 10px; font-size: 1.14rem; color: var(--main); }
.card p { margin: 0; color: var(--muted); line-height: 1.7; }

.cta { text-align: center; margin: 30px 0 10px; }
.btn { display: inline-block; padding: 13px 28px; background: var(--main); color: #fff; border-radius: 9px; text-decoration: none; font-weight: 700; letter-spacing: 1px; box-shadow: 0 2px 12px rgba(35,98,255,.09); }
.btn:hover { background: var(--main-hover); }

.contact-row { display: flex; gap: 16px; justify-content: center; margin-top: 16px; flex-wrap: wrap; }
.contact-badge { display: flex; align-items: center; justify-content: center; padding: 12px 18px; border-radius: 10px; background: #fff; box-shadow: 0 1px 8px rgba(0,0,0,.06); min-width: 230px; }
.contact-badge span { color: #2362ff; font-weight: 700; }

.footer { margin-top: 44px; padding: 22px 0; background: #fff; text-align: center; color: #999; font-size: .95rem; border-top: 1px solid #edf0f6; }

.kws { margin-top: 26px; font-size: .95rem; color: #6474a0; }
.kws a { color: #6474a0; text-decoration: none; margin-right: 10px; }
.kws a:hover { color: var(--main); text-decoration: underline; }

ul.feature-list { margin: 8px 0 0 18px; color: var(--muted); line-height: 1.8; }

@media (max-width: 820px) {
  .grid { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; gap: 10px; }
  .nav { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
}