:root{--bg:#f7f5fc;--card:#fff;--ink:#1f1a33;--muted:#5f5874;--brand:#5542a1;--brand-soft:#ebe6fa;--mint:#d6efe4;--line:#e4dff2}
@media (prefers-color-scheme:dark){:root{--bg:#15121f;--card:#1e1a2c;--ink:#efeaff;--muted:#b4abcc;--brand:#b6a6ff;--brand-soft:#2a2442;--mint:#1f3a30;--line:#322b4a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
header{max-width:760px;margin:0 auto;padding:28px 16px 8px;display:flex;align-items:center;gap:12px}
header a.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:20px}
header svg{width:36px;height:36px}
nav{max-width:760px;margin:0 auto;padding:0 16px 8px;display:flex;flex-wrap:wrap;gap:6px 16px;font-size:14px}
nav a{color:var(--brand);text-decoration:none}
main{max-width:760px;margin:0 auto;padding:8px 16px 48px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px 22px;margin:16px 0}
h1{font-size:28px;line-height:1.25;margin:8px 0 4px}
h2{font-size:19px;margin:28px 0 6px}
h3{font-size:16px;margin:18px 0 4px}
p,li{color:var(--ink)}
.muted{color:var(--muted);font-size:14px}
a{color:var(--brand)}
table{width:100%;border-collapse:collapse;font-size:14px;margin:8px 0}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600}
.note{background:var(--mint);border-radius:14px;padding:12px 14px;margin:12px 0}
.steps li{margin:6px 0}
/* How it works */
.how-title{font-size:24px;margin:36px 0 2px}
.how-intro{margin:0 0 4px}
.step{display:flex;gap:22px;align-items:center}
.step-text{flex:1;min-width:0}
.step-text h3{font-size:18px;margin:6px 0 6px}
.step-text p{margin:0}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:15px;background:var(--brand);color:#fff;font-weight:700;font-size:15px}
@media (prefers-color-scheme:dark){.step-num{color:#15121f}}
.phone{margin:0;flex:0 0 200px;border-radius:26px;overflow:hidden;border:1px solid var(--line);box-shadow:0 8px 24px rgba(31,26,51,.10);background:var(--bg)}
.phone img{display:block;width:100%;height:auto}
.step:nth-of-type(odd) .phone{order:2}
@media (max-width:620px){.step{flex-direction:column;align-items:stretch}.step:nth-of-type(odd) .phone{order:0}.phone{flex-basis:auto;width:min(240px,70%);margin:0 auto}}
footer{max-width:760px;margin:0 auto;padding:0 16px 40px;font-size:13px;color:var(--muted)}
@media (max-width:520px){.card{padding:18px 16px}h1{font-size:24px}table{font-size:13px}}