.pvt-btn{display:inline-block;margin-top:10px;padding:10px 24px;border:none;border-radius:6px;font-size:14px;font-weight:700;color:#fff;cursor:pointer;letter-spacing:.04em;text-transform:uppercase;transition:opacity .2s,transform .15s;width:auto;min-width:160px;text-align:center}.pvt-btn:hover{opacity:.88;transform:translateY(-1px)}.pvt-btn:active{transform:translateY(0)}.pvt-modal-overlay{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;background:rgb(0 0 0 / .80);z-index:999999!important;display:flex;align-items:center;justify-content:center;padding:16px}.pvt-modal-overlay[hidden]{display:none!important}.pvt-modal-box{background:#1a1a1a;border:1px solid #444;border-radius:12px;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;color:#f0f0f0;font-family:sans-serif}.pvt-modal-header{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid #333}.pvt-modal-title{font-size:16px;font-weight:700;color:#fff}.pvt-modal-close{background:none;border:none;color:#aaa;font-size:22px;cursor:pointer;padding:0 4px;line-height:1}.pvt-modal-close:hover{color:#fff}.pvt-step{padding:20px}.pvt-hint{font-size:14px;color:#ccc;margin:0 0 16px;line-height:1.5}.pvt-upload-area{display:flex;flex-direction:column;align-items:center;justify-content:center;border:2px dashed #555;border-radius:10px;padding:36px 16px;cursor:pointer;text-align:center;transition:border-color .2s,background .2s}.pvt-upload-area:hover,.pvt-upload-area.pvt-drag-over{border-color:#0057FF;background:rgb(0 87 255 / .06)}.pvt-upload-icon{font-size:38px;margin-bottom:10px}.pvt-upload-text{font-size:14px;color:#ddd;margin-bottom:4px}.pvt-upload-sub{font-size:12px;color:#777}#pvt-preview-wrap{margin-top:16px;text-align:center}#pvt-preview-img{max-width:100%;max-height:260px;border-radius:8px;border:1px solid #333;display:block;margin:0 auto 16px}.pvt-generate-btn{display:block;width:100%;padding:13px;background:#0057FF;color:#fff;border:none;border-radius:8px;font-size:15px;font-weight:700;cursor:pointer;letter-spacing:.04em;transition:opacity .2s;text-transform:uppercase}.pvt-generate-btn:hover{opacity:.88}#pvt-step-loading{text-align:center;padding:40px 20px}.pvt-spinner{width:52px;height:52px;border:4px solid #333;border-top-color:#0057FF;border-radius:50%;animation:pvt-spin .8s linear infinite;margin:0 auto 16px}@keyframes pvt-spin{to{transform:rotate(360deg)}}.pvt-loading-text{font-size:14px;color:#aaa}#pvt-step-result{text-align:center}.pvt-result-label{font-size:15px;font-weight:700;color:#fff;margin:0 0 12px}#pvt-result-img{max-width:100%;max-height:360px;border-radius:10px;display:block;margin:0 auto 16px;border:1px solid #333}.pvt-result-actions{display:flex;flex-direction:column;gap:10px}.pvt-download{background:#0057FF;text-decoration:none}.pvt-secondary{background:#333;color:#ddd}#pvt-step-error{text-align:center;padding:32px 20px}.pvt-error-text{color:#f44336;font-size:14px;margin:0 0 16px;line-height:1.5}@media (max-width:480px){.pvt-modal-box{border-radius:10px}}