:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;color:#173b3a;background:#f3f6f2;color-scheme:light}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a{touch-action:manipulation}button{border:0;border-radius:12px;padding:13px 20px;background:#1c645c;color:white;cursor:pointer}button:disabled{opacity:.55}a{color:#1c645c}input{width:100%;padding:16px;border:1px solid #b6c6bf;border-radius:12px;background:#fff;font-size:17px}input:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid #d89b4a;outline-offset:3px}.activation{min-height:100dvh;display:grid;place-items:center;padding:24px}.card{width:min(100%,480px);padding:42px;background:#fffefb;border:1px solid #dfe7df;border-radius:24px;box-shadow:0 18px 80px #284e3910}.brand{font-size:12px;font-weight:700;letter-spacing:3px;color:#577b6d}.card h1{font-size:34px;line-height:1.3;margin:22px 0 14px}.muted{color:#677d76;line-height:1.8}.card label{display:block;margin:28px 0 9px}.card button{width:100%;margin-top:16px}.status{line-height:1.6;min-height:26px;color:#826338}.status.error{color:#ad3434}.foot{border-top:1px solid #e5ebe4;margin-top:24px;padding-top:20px;font-size:13px}.shell{height:100dvh;display:flex;flex-direction:column}.bar{display:flex;gap:20px;align-items:center;justify-content:space-between;padding:12px 24px;background:#fffefb;border-bottom:1px solid #dfe7df}.bar p{margin:0;font-size:12px}.bar button{padding:9px 13px;font-size:13px}.course-area{position:relative;flex:1;min-height:0}.course-area iframe{width:100%;height:100%;border:0;background:white}.course-area .status{padding:24px}.watermark{position:absolute;z-index:5;pointer-events:none;user-select:none;opacity:.22;font-size:13px;letter-spacing:1px;transform:rotate(-14deg);color:#324b66;background:#ffffff55;padding:6px;transition:top 2s,left 2s}.bar strong{display:block} [hidden]{display:none!important}@media(max-width:540px){.activation{padding:16px}.card{padding:28px 24px}.card h1{font-size:29px}.bar{padding:10px 14px;gap:8px}.bar .brand{letter-spacing:1px;font-size:10px}.bar strong{font-size:14px}.bar button{white-space:nowrap}.watermark{font-size:11px}}
.bar>div{flex-shrink:0}#license-label{min-width:0;overflow-wrap:anywhere;text-align:center;max-width:45%;font-size:11px}.watermark{max-width:70%;overflow-wrap:anywhere}
.course-area{overflow:hidden}
.bar{flex-wrap:wrap;gap:8px 12px}.bar small{flex-basis:100%;font-size:11px;color:#677d76;line-height:1.4}.bar #sync-status{font-size:12px;overflow-wrap:anywhere;flex:1 1 180px}.bar button{flex-shrink:0}@media(max-width:540px){.bar button{padding:7px 9px;font-size:12px}#license-label{max-width:55%}}