*{box-sizing:border-box}body{margin:0;font:16px/1.65 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#0f172a;background:#fff}
a{color:#4f46e5}header{border-bottom:1px solid #eef0f5}nav{max-width:960px;margin:0 auto;display:flex;align-items:center;gap:22px;padding:14px 20px}
nav .b{display:flex;align-items:center;gap:8px;font-weight:800;font-size:18px;color:#0f172a;text-decoration:none;margin-right:auto}nav .b img{width:28px;height:28px;border-radius:7px}
nav a{text-decoration:none;color:#475569;font-weight:600;font-size:14px}main{max-width:820px;margin:0 auto;padding:36px 20px 60px}
h1{font-size:34px;line-height:1.2;margin:0 0 10px}h2{font-size:21px;margin:30px 0 8px}.lead{font-size:18px;color:#475569}
.btn{display:inline-block;background:#4f46e5;color:#fff;text-decoration:none;padding:11px 20px;border-radius:10px;font-weight:700}
.btn.ghost{background:#fff;color:#4f46e5;border:1px solid #c7d2fe}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0}.plan{border:1px solid #e5e7ef;border-radius:14px;padding:22px}
.plan.pro{border-color:#a5b4fc;box-shadow:0 10px 30px rgba(79,70,229,.12)}.price{font-size:34px;font-weight:800}.price small{font-size:14px;color:#64748b;font-weight:500}
.plan ul{padding-left:18px}.muted{color:#64748b;font-size:14px}footer{border-top:1px solid #eef0f5;padding:22px;text-align:center;color:#94a3b8;font-size:13px}
.zh{border-top:1px dashed #e5e7ef;margin-top:40px;padding-top:10px}
img.shot{width:100%;border-radius:12px;border:1px solid #e5e7ef;margin:20px 0}
@media(max-width:700px){.plans{grid-template-columns:1fr}}