:root{--orange:#FF6500;--ink:#202020;--muted:#5F5F5F;--line:#ECECEC;--wash:#FFF5EE;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff}
*{box-sizing:border-box}body{margin:0;background:#fff}a{color:var(--orange)}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header{display:flex;align-items:center;gap:12px;padding:16px 0}header .logo{height:34px;width:auto}header .spacer{flex:1}
select{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
.hero{padding:48px 0 40px;display:grid;gap:18px;max-width:720px}h1{font-size:clamp(30px,6vw,48px);line-height:1.1;margin:0}.lead{font-size:clamp(17px,2.4vw,20px);line-height:1.55;color:var(--muted);margin:0}
.pill{display:inline-flex;align-items:center;gap:8px;align-self:start;justify-self:start;background:var(--wash);color:#9A3D00;border-radius:30px;padding:10px 16px;font-weight:600}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;padding:8px 0 40px}.card{border:1px solid var(--line);border-radius:14px;padding:22px;display:grid;gap:12px;align-content:start}
.card h2{margin:0;font-size:20px;color:var(--orange)}ul{margin:0;padding-left:20px;display:grid;gap:8px;line-height:1.5}
.how{background:var(--wash);padding:40px 0}.how h2{margin:0 0 18px;font-size:24px}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;counter-reset:s}.step{background:#fff;border-radius:14px;padding:18px 18px 18px 64px;position:relative;line-height:1.5;min-height:72px;display:flex;align-items:center}.step::before{counter-increment:s;content:counter(s);position:absolute;left:18px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;background:var(--orange);color:#fff;display:grid;place-items:center;font-weight:700}
footer{padding:28px 0;color:var(--muted);font-size:14px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}
.invite{min-height:70vh;display:grid;place-items:center;padding:24px 0}.invite .card{max-width:440px;width:100%;text-align:center;justify-items:center;padding:28px}.invite .mark{width:72px;height:72px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 22px;border-radius:10px;background:var(--orange);color:#fff;font-weight:700;text-decoration:none;border:0;font-size:17px;cursor:pointer;width:100%}.button.ghost{background:#fff;color:var(--ink);border:1px solid var(--line);font-weight:600}
.code{font-size:22px;font-weight:700;letter-spacing:.04em}.muted{color:var(--muted)}.error{color:#C62828}