:root{color-scheme:light;font-family:system-ui,-apple-system,"Noto Sans TC","Microsoft JhengHei",sans-serif;color:#102a48;background:#f1f6fc;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100svh;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:48px 20px;background:radial-gradient(ellipse at 80% 10%,#e0edff,transparent 55%),#f1f6fc}.preview-card{width:min(100%,480px);padding:42px 40px 32px;background:#fff;border:1px solid #e0e8f1;border-radius:24px;box-shadow:0 18px 60px #153b6912}.brand{text-decoration:none;font-size:24px;font-weight:850;letter-spacing:-1.4px;color:#173b8d}.brand span{color:#008fb7}.eyebrow{margin:44px 0 12px;color:#5980a6;font-size:12px;font-weight:750;letter-spacing:3px}h1{font-size:clamp(30px,5vw,38px);line-height:1.3;letter-spacing:1px;margin:0 0 20px}.intro{margin:0;color:#59718b;font-size:16px;line-height:1.9}.divider{height:1px;background:#e4ebf2;margin:30px 0 24px}.invitation{font-size:14px;line-height:1.7;margin:0 0 20px;color:#58718b}form{display:grid;gap:12px}label{font-size:13px;font-weight:650}input{font:inherit;min-width:0;width:100%;border:1px solid #bacadd;border-radius:10px;padding:14px 15px;color:#102a48;background:#fafcff}input:focus{outline:3px solid #d4e8ff;border-color:#0057cb}button{display:flex;justify-content:space-between;align-items:center;border:0;border-radius:10px;padding:14px 18px;font:inherit;font-size:15px;font-weight:700;color:#fff;background:#0057cb;cursor:pointer}button:hover{background:#0046aa}button:focus-visible,a:focus-visible{outline:3px solid #75baff;outline-offset:4px}.footnote{font-size:12px;color:#8393a5;margin:18px 0 0;line-height:1.7}.notice{color:#a12c32;background:#fff0f0;border-radius:8px;padding:12px;font-size:14px;line-height:1.6}footer{margin:24px 0 0;color:#71869e;font-size:12px;letter-spacing:.3px;text-align:center}@media(max-width:480px){body{padding:28px 18px}.preview-card{padding:30px 24px 26px;border-radius:20px}.eyebrow{margin-top:34px}}