body{background:#000;font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;color:#fff}.osg-serial-form{background:#111;border-radius:12px;margin:80px auto;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.6);position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:100%;padding:20px}.osg-serial-form h2{font-weight:500;margin-bottom:20px}.osg-input{width:96%;max-width:100%;padding:12px;margin-bottom:20px;border-radius:8px;border:none;background:#222;color:#fff}.osg-btn{width:100%;padding:12px;background:#0071e3;border:none;border-radius:8px;color:#fff;font-size:16px;cursor:pointer;transition:background .3s}.osg-btn:hover{background:#005bb5}.osg-popup{display:none;position:fixed;inset:0;background:rgba(0,0,0,.8);justify-content:center;align-items:center;z-index:9999}.osg-popup-content{background:#000;padding:30px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.9)}.osg-close{float:right;font-size:22px;cursor:pointer;color:#aaa}.osg-close:hover{color:#fff}.osg-apple-style{font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;background:#1c1c1e;color:#fff;padding:25px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.8)}.osg-apple-style .osg-header{display:flex;align-items:center;gap:15px;margin-bottom:20px}.osg-apple-style .osg-thumb{width:80px;height:auto;border-radius:6px}.osg-apple-style .osg-name{font-size:20px;font-weight:600;margin:0 0 5px 0;color:#fff}.osg-apple-style p{margin:4px 0;font-size:15px;color:#d1d1d6}.osg-apple-style .osg-desc{margin:15px 0;font-size:14px;line-height:1.6;color:#e5e5e7}.osg-apple-style .osg-warranty-box{background:#2c2c2e;padding:15px;border-radius:10px;margin-top:20px}.osg-apple-style .osg-warranty-box h3{font-size:16px;margin:0 0 10px 0;color:#fff}.osg-apple-style .osg-warranty-box p{font-size:14px;margin:4px 0;color:#d1d1d6}.osg-apple-style .osg-warranty-box hr{border:none;border-top:1px solid #3a3a3c;margin:10px 0}.osg-apple-style .osg-warranty-box ul{padding-left:20px;margin:8px 0}.osg-apple-style .osg-warranty-box li{margin:5px 0;font-size:14px;color:#d1d1d6}.osg-apple-style a{color:#0a84ff;text-decoration:none;font-size:14px}.osg-input,.osg-btn{display:block;width:100%;box-sizing:border-box;margin:0 0 10px}@media (max-width:768px){.osg-serial-form{width:77%}}.osg-input{font-size:16px!important;line-height:1.4;padding:10px 12px}.osg-extra-info{margin-top:15px;font-size:14px;color:#ddd}.osg-cert-buttons{display:flex;gap:10px;margin:10px 0 15px}.osg-cert-btn{background:#007bff;color:#fff!important;padding:8px 14px;border-radius:6px;text-decoration:none;font-size:14px;font-weight:500;transition:background 0.3s ease}.osg-cert-btn:hover{background:#0056b3}