*{box-sizing:border-box}body{margin:0;font:15px/1.6 -apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:#1f2329;background:#f6f7f9}
.top{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:#fff;border-bottom:1px solid #e5e6eb}
.brand{font-weight:700;font-size:20px}.brand span{font-weight:400;font-size:14px;color:#646a73;margin-left:10px}
nav a{margin-left:18px;color:#3370ff;text-decoration:none}
.tool{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:16px 24px;max-width:1300px;margin:auto}
@media(max-width:860px){.tool{grid-template-columns:1fr}}
.pane{background:#fff;border:1px solid #e5e6eb;border-radius:10px;padding:12px;display:flex;flex-direction:column}
.pane-h{font-weight:600;margin-bottom:8px}.pane-h small{font-weight:400;color:#8f959e;margin-left:6px}
textarea{flex:1;min-height:420px;width:100%;border:1px solid #dee0e3;border-radius:8px;padding:10px;font:13px/1.55 ui-monospace,Consolas,monospace;resize:vertical}
.preview{flex:1;min-height:420px;max-height:560px;overflow:auto;border:1px solid #dee0e3;border-radius:8px;padding:6px 14px}
.preview table{border-collapse:collapse}.preview td,.preview th{border:1px solid #ccc;padding:4px 8px}
.preview pre{background:#f5f5f5;padding:8px;overflow:auto}
.row{display:flex;gap:8px;margin-top:10px}
button,.btn{border:0;border-radius:8px;padding:9px 16px;font-size:15px;cursor:pointer;text-decoration:none;display:inline-block}
.primary{background:#3370ff;color:#fff}.primary:hover{background:#245bdb}.ghost{background:#f2f3f5;color:#1f2329}
#download{width:100%;font-size:17px;padding:12px}
.status{margin-top:8px;color:#646a73;font-size:13px}.pro{color:#00a870}.muted{color:#8f959e}
.block{max-width:1000px;margin:24px auto;padding:0 24px}.pain li{margin:4px 0}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:700px){.plans{grid-template-columns:1fr}}
.plan{background:#fff;border:1px solid #e5e6eb;border-radius:12px;padding:18px;position:relative}
.plan.hot{border:2px solid #3370ff}.badge{position:absolute;top:-12px;right:16px;background:#ff7d00;color:#fff;border-radius:10px;padding:0 10px;font-size:13px}
.price{font-size:30px;font-weight:700}.price s{font-size:16px;color:#8f959e;font-weight:400}
.qr{margin-top:12px}.qrs{display:flex;gap:16px}.qrs img{width:150px;height:150px;object-fit:contain;border:1px solid #eee;background:#fafafa}
.activate{margin-top:16px;background:#fff;border:1px dashed #c9cdd4;border-radius:10px;padding:12px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.activate input{flex:1;min-width:240px;padding:8px;border:1px solid #dee0e3;border-radius:8px}
details{background:#fff;border:1px solid #e5e6eb;border-radius:8px;padding:8px 12px;margin:8px 0}summary{cursor:pointer;font-weight:600}
.foot{text-align:center;color:#8f959e;padding:30px}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:#1f2329;color:#fff;padding:10px 18px;border-radius:8px;opacity:0;transition:.3s;pointer-events:none}.toast.show{opacity:.95}

.pay{margin-top:16px;background:#fff;border:2px solid #07c160;border-radius:12px;padding:18px;scroll-margin-top:16px}
.pay h3{margin:0 0 12px}.pay-body{display:flex;gap:20px;align-items:flex-start;flex-wrap:wrap}
.pay-qr{margin:0;text-align:center}.pay-qr img{width:260px;height:auto;border-radius:8px;border:1px solid #eee}
.pay-qr figcaption{font-size:13px;color:#646a73}.pay-qr[hidden]{display:none}
.pay-steps{flex:1;min-width:240px;margin:0;padding-left:20px;line-height:1.9}
.pay-note{font-size:13px;color:#646a73;margin:12px 0 0}.pay-note a{color:#3370ff}