.rt-tool{max-width:820px;margin:2rem auto;background:#fff;border-radius:20px;box-shadow:0 1px 2px rgb(17 24 39 / .04),0 12px 32px rgb(67 56 202 / .10);border:1px solid #ECECF3;padding:1.75rem;position:relative;overflow:hidden}.rt-tool::before{content:'';position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,#4338CA,#7C3AED,#059669)}.rt-upload-box{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.6rem;border:2px dashed #c7c7d1;border-radius:16px;padding:3rem 1.5rem;cursor:pointer;transition:border-color .2s,background .2s,transform .2s;text-align:center}.rt-upload-box:hover,.rt-upload-box.rt-drag{border-color:#4338CA;background:#EEF2FF;transform:translateY(-2px)}.rt-upload-box svg{width:30px;height:30px;padding:17px;box-sizing:content-box;border-radius:50%;background:linear-gradient(135deg,#4338CA,#7C3AED);color:#fff;box-shadow:0 8px 20px rgb(67 56 202 / .35);animation:rt-pulse 2.4s ease-in-out infinite}@keyframes rt-pulse{0%,100%{box-shadow:0 8px 20px rgb(67 56 202 / .35)}50%{box-shadow:0 8px 26px rgb(67 56 202 / .55)}}.rt-upload-title{font-size:1.2rem;font-weight:800;color:#1F2937}.rt-upload-sub{font-size:.88rem;color:#666;max-width:380px;line-height:1.45}.rt-editor-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}@media (min-width:720px){.rt-editor-grid{grid-template-columns:1fr 300px}}.rt-preview-wrap{background:linear-gradient(180deg,#F5F5FA,#EFEFF6);border-radius:14px;display:flex;align-items:center;justify-content:center;padding:1rem;min-height:220px}.rt-preview{max-width:100%;max-height:360px;border-radius:6px;box-shadow:0 0 0 1px rgb(0 0 0 / .08),0 6px 20px rgb(0 0 0 / .08)}.rt-controls{display:flex;flex-direction:column;gap:1rem}.rt-field{display:flex;flex-direction:column;gap:.4rem}.rt-field label{font-size:.85rem;font-weight:700;color:#222}.rt-field input[type=range],.rt-field input[type=number]{width:100%}.rt-field input[type=number]{padding:.55rem .7rem;border-radius:10px;border:1.5px solid #E2E2EC;font-size:.9rem}.rt-field input[type=number]:focus{outline:none;border-color:#4338CA}.rt-field input[type=range]{accent-color:#4338CA}.rt-target-row{display:flex;gap:.5rem;align-items:flex-end}.rt-target-row .rt-field{flex:1}.rt-size-info{background:linear-gradient(135deg,#EEF2FF,#F5F0FF);border-radius:12px;padding:.85rem 1rem;font-size:.85rem;color:#333;border-left:4px solid #4338CA;position:relative;padding-right:2.2rem;font-weight:600}.rt-size-info::after{content:'\2713';position:absolute;top:.65rem;right:.8rem;width:20px;height:20px;border-radius:50%;background:#059669;color:#fff;font-size:.7rem;font-weight:900;display:flex;align-items:center;justify-content:center}.rt-btn-primary,.rt-btn-secondary{border:none;border-radius:10px;padding:.9rem 1rem;font-size:.9rem;font-weight:700;cursor:pointer;white-space:nowrap;transition:background .15s,transform .15s,box-shadow .15s;display:flex;align-items:center;justify-content:center;gap:.5rem}.rt-btn-primary{background:linear-gradient(135deg,#4338CA,#6D28D9);color:#fff;box-shadow:0 6px 16px rgb(67 56 202 / .35)}.rt-btn-primary::before{content:'\2b07';font-size:1rem}.rt-btn-primary:hover{background:linear-gradient(135deg,#372DA6,#5B21B6);transform:translateY(-2px);box-shadow:0 10px 22px rgb(67 56 202 / .45)}.rt-btn-primary:active{transform:translateY(0) scale(.98)}.rt-btn-secondary{background:#F8F8FB;color:#444;border:1.5px solid #E2E2EC}.rt-btn-secondary:hover{background:#F0F0F5;border-color:#ccc}.rt-auto.rt-btn-secondary{background:linear-gradient(135deg,#ECFDF5,#F0FDFA);border-color:#A7F3D0;color:#047857}.rt-auto.rt-btn-secondary:hover{background:#D1FAE5}.rt-next{margin-top:18px;padding:14px 16px;border:1px solid #e2e8f0;border-radius:12px;background:#f8fafc}.rt-next[hidden]{display:none!important}.rt-next-title{margin:0 0 10px;font-weight:600;font-size:15px}.rt-next-links{display:flex;flex-wrap:wrap;gap:8px}.rt-next-link{display:inline-block;padding:8px 14px;border-radius:999px;border:1px solid #c7d2fe;background:#fff;color:#4338ca!important;text-decoration:none!important;font-size:14px}.rt-next-link:hover{background:#eef2ff}