:root{--bg:#f4f6fb;--card:#ffffff;--muted:#6b7280;--g1:#4f46e5;--g2:#06b6d4;--primary:linear-gradient(90deg,var(--g1),var(--g2));--success:linear-gradient(90deg,#06d6a0,#06b6d4);--danger:linear-gradient(90deg,#ff6b6b,#ff8a65);--shadow:0 12px 30px rgba(20,30,60,0.06)}*{box-sizing:border-box}html,body{height:100%;margin:0;padding:0;font-family:Inter,system-ui,Arial;background:var(--bg);color:#111}.itp-wrap{max-width:1200px;margin:24px auto;padding:12px}.itp-header{text-align:center;margin-bottom:12px}.itp-header h1{font-size:24px;margin:6px 0}.itp-sub{color:var(--muted);margin:0}.itp-main{display:grid;grid-template-columns:1fr 360px;gap:20px;align-items:start}@media (max-width:920px){.itp-main{grid-template-columns:1fr}}.itp-left{min-height:360px}.itp-dropzone{border:2px dashed rgb(20 30 60 / .06);background:linear-gradient(180deg,rgb(255 255 255 / .95),rgb(255 255 255 / .9));padding:22px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-direction:column}.itp-drop-inner p{margin:0;color:var(--muted);font-weight:600}.itp-drop-inner p{margin-bottom:12px}.itp-btn.itp-add{margin-top:10px;padding:16px 16px;border-radius:12px;background:var(--primary);color:#fff;border:none;cursor:pointer}.itp-grid{margin-top:16px;display:flex;flex-wrap:wrap;gap:14px;min-height:200px}.itp-thumb{width:150px;height:120px;border-radius:8px;overflow:hidden;background:var(--card);box-shadow:var(--shadow);position:relative;display:flex;align-items:center;justify-content:center}.itp-thumb img{width:100%;height:100%;object-fit:cover}.itp-thumb .remove{position:absolute;top:6px;right:6px;background:rgb(0 0 0 / .6);color:#fff;border:0;border-radius:50%;width:26px;height:26px;cursor:pointer}.itp-card{background:var(--card);padding:18px;border-radius:10px;box-shadow:var(--shadow);position:sticky;top:28px}.lab{display:block;margin-top:12px;margin-bottom:8px;font-weight:700}.seg{display:flex;gap:8px}.seg-btn{padding:10px 12px;border-radius:8px;border:1px solid #eef2ff;background:#fff;cursor:pointer}.seg-btn.active{background:var(--primary);color:#fff;border:none;box-shadow:0 8px 20px rgb(79 70 229 / .12)}.sel{width:100%;padding:10px;border-radius:8px;border:1px solid #e6eefc;background:#fff}.checkbox-row{display:flex;align-items:center;gap:10px;margin-top:12px;cursor:pointer}.spacer{height:12px}.itp-convert{width:100%;padding:14px;border-radius:12px;border:0;background:var(--primary);color:#fff;font-weight:800;font-size:16px;cursor:pointer;box-shadow:0 10px 30px rgb(79 70 229 / .12)}.itp-download{display:inline-block;width:100%;padding:12px;border-radius:10px;border:0;background:var(--success);color:#fff;font-weight:700;margin-top:10px;cursor:pointer;text-align:center;text-decoration:none}.itp-reset{width:100%;padding:12px;border-radius:10px;border:0;background:var(--danger);color:#fff;font-weight:700;margin-top:10px;cursor:pointer}.itp-status{margin-top:12px;color:var(--muted);text-align:center;min-height:20px}.itp-share-row{max-width:1200px;margin:18px auto 60px;padding:0 12px}.itp-share{width:100%;padding:14px;border-radius:12px;border:0;background:linear-gradient(90deg,#7c3aed,#06b6d4);color:#fff;font-weight:800;font-size:16px;cursor:pointer;box-shadow:0 10px 30px rgb(79 70 229 / .12)}@media (max-width:540px){.itp-thumb{width:140px;height:110px}.itp-share-row{padding:0 8px}}