:root{background:#f5f7fa;color:#1f2933;font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0}a,button{text-decoration:none}.page{align-items:center;display:flex;justify-content:center;min-height:100vh;padding:28px}.download-list{display:grid;gap:18px;max-width:420px;width:min(100%,420px)}.invite-box{display:grid;gap:12px;max-width:360px;width:min(100%,360px)}.invite-input{background:#fff;border:1px solid #cfd8e3;border-radius:8px;color:#1f2933;font:inherit;font-size:17px;height:52px;letter-spacing:0;outline:none;padding:0 14px;text-align:center;text-transform:uppercase}.invite-input:focus{border-color:#1769aa;box-shadow:0 0 0 3px #1769aa1f}.invite-button{align-items:center;background:#1769aa;border:0;border-radius:8px;color:#fff;cursor:pointer;display:inline-flex;font-size:18px;font-weight:800;justify-content:center;letter-spacing:0;min-height:54px;padding:0 18px;width:100%}.invite-button:disabled{cursor:not-allowed;opacity:.68}.invite-error{color:#c62828;font-size:14px;line-height:1.5;margin:0;text-align:center}.download-item{display:grid;gap:8px}.download-button{align-items:center;background:#1769aa;border:0;border-radius:8px;color:#fff;cursor:pointer;display:inline-flex;font-size:18px;font-weight:800;gap:10px;justify-content:center;letter-spacing:0;min-height:54px;padding:0 18px;width:100%}.download-button.disabled{background:#b8c3cc;cursor:not-allowed;pointer-events:none}.download-item p{color:#5f6b76;font-size:14px;line-height:1.5;margin:0;text-align:center}