:root{--g:#16a34a;--g-dark:#15803d;--g-soft:#ecfdf3;--bg:#f6faf7;--fg:#1f2329;--muted:#5b6470;--card:#fff;--line:#dbe9df;--gold:#f5b301}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.75 -apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
.topbar{background:#0f1f17;color:#fff}
header,main,footer{max-width:820px;margin:0 auto;padding:0 16px}
header{padding:14px 16px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
header a.brand{color:#fff;font-weight:700;text-decoration:none;font-size:18px}
nav a{color:#cfe9d8;text-decoration:none;margin-left:14px;font-size:15px}
h1{font-size:27px;line-height:1.35;margin:26px 0 10px}
h2{font-size:21px;margin:34px 0 10px;padding-left:10px;border-left:4px solid var(--g)}
h3{font-size:17px;margin:18px 0 6px}
.answer{background:#fff;border:2px solid var(--g);border-radius:12px;padding:14px 18px;margin:14px 0}
.answer p{margin:6px 0}
.buy{background:linear-gradient(135deg,#0f2a1b,#14532d);color:#fff;border-radius:16px;padding:22px 20px;margin:18px 0;text-align:center}
.buy .price{font-size:40px;font-weight:800;color:#4ade80;line-height:1.1;margin:4px 0}
.buy .price small{font-size:18px;color:#fff;font-weight:600}
.buy p{margin:6px 0}
.btn{display:inline-block;background:var(--gold);color:#1f2329!important;font-weight:800;font-size:18px;text-decoration:none;padding:12px 32px;border-radius:999px;margin:12px 0 6px}
.btn:hover{background:#ffc933}
.buy .small{font-size:13px;opacity:.8}
.steps{counter-reset:s;list-style:none;padding:0;margin:0}
.steps li{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px 14px 58px;margin:10px 0}
.steps li:before{counter-increment:s;content:counter(s);position:absolute;left:16px;top:14px;width:30px;height:30px;border-radius:50%;background:var(--g);color:#fff;font-weight:800;text-align:center;line-height:30px}
.steps b{display:block;font-size:17px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:14px 0;overflow-x:auto}
table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:15px}
th,td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top;overflow-wrap:anywhere}
th{color:var(--g-dark)}
.hl{color:var(--g-dark);font-weight:700}
code{background:#eef5f0;padding:1px 5px;border-radius:4px;word-break:break-all}
.note{background:#fff7ed;border-left:4px solid #b54708;border-radius:6px;padding:12px 16px;margin:16px 0;font-size:15px}
a{color:var(--g-dark)}
footer{color:var(--muted);font-size:14px;border-top:1px solid var(--line);margin-top:44px;padding-top:16px;padding-bottom:32px}