/* Scoped, dependency-free studio styling. */
.studio-hero{background:radial-gradient(circle at 88% 16%,#ffebd8,transparent 33%),linear-gradient(130deg,#eef4ff,#fffaf5);padding:38px 0 34px}.studio-hero.forms{background:radial-gradient(circle at 88% 16%,#d3f3e9,transparent 33%),linear-gradient(130deg,#eef4ff,#f5fffb)}.studio-hero h1{font-size:clamp(30px,4.5vw,52px);max-width:830px;letter-spacing:-1.7px;line-height:1.09;margin:14px 0}.studio-hero p{max-width:790px;font-size:16px;line-height:1.65;color:#526177}.studio-pills{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 0}.studio-pills span{font-size:12px;background:#ffffffbd;border:1px solid #dce5ed;border-radius:30px;padding:7px 11px;color:#34465e}.studio-zone{padding:28px 0 52px;background:#f5f7fb}.studio-shell{border:1px solid #dce4ee;border-radius:22px;background:white;box-shadow:0 16px 45px #18314f0c;overflow:hidden}.studio-shell *{box-sizing:border-box}.studio-shell [hidden]{display:none!important}.studio-shell button,.studio-shell input,.studio-shell select,.studio-shell textarea{font:inherit}.studio-shell{font-size:14px;color:#22354d}.studio-top{background:#172a45;color:#fff;padding:19px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px}.studio-top strong{font-size:18px}.studio-top small{display:block;color:#bfd0e5;margin-top:5px;font-size:12px}.studio-body{padding:24px}.studio-drop{padding:24px;border:2px dashed #c1cde0;border-radius:16px;text-align:center;background:#f7faff}.studio-drop.drag{background:#eaf2ff;border-color:#3268d7}.studio-drop h2{margin:0 0 8px;font-size:22px}.studio-drop p{font-size:13px;color:#61738c;line-height:1.6;margin:0 0 18px}.studio-file{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}.studio-drop:focus-within{outline:3px solid #91b4ff;outline-offset:4px}.studio-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:42px;padding:10px 15px;background:#fff;border:1px solid #cdd8e6;border-radius:10px;color:#233d5c;font-weight:650!important;cursor:pointer;text-decoration:none}.studio-btn:hover{background:#eef4ff;border-color:#9bb6e2}.studio-btn.primary{background:#3268d7;color:#fff;border-color:#3268d7}.forms .studio-btn.primary{background:#137b69;border-color:#137b69}.studio-btn.small{font-size:12px;min-height:36px;padding:7px 11px}.studio-btn.danger{color:#b14139}.studio-btn:disabled{opacity:.45;cursor:not-allowed}.studio-btn:focus-visible,.studio-shell input:focus-visible,.studio-shell select:focus-visible,.studio-shell textarea:focus-visible{outline:3px solid #90baff;outline-offset:2px}.studio-file-card{padding:13px 16px;margin:16px 0;border:1px solid #d9e4ed;background:#f8fafc;border-radius:12px;overflow-wrap:anywhere}.studio-file-card small{display:block;font-size:12px;color:#61738c;margin-top:4px}.studio-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:22px;margin-top:22px}.studio-panel{border:1px solid #dfe6ef;border-radius:14px;padding:18px;background:#fafbfd;min-width:0}.studio-panel h2,.studio-panel h3{margin:0 0 13px;font-size:17px}.studio-label,.studio-grid>label{display:grid;gap:7px;font-size:13px;font-weight:600;margin:0 0 14px}.studio-label input,.studio-label select,.studio-label textarea,.studio-grid input,.studio-grid select,.form-field input:not([type=checkbox]),.form-field select,.form-field textarea{width:100%;min-width:0;min-height:43px;border:1px solid #c9d5e2;border-radius:8px;padding:9px 10px;background:#fff;color:#20354f}.studio-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.studio-grid>label{margin:0}.studio-check{display:flex;gap:9px;align-items:flex-start;line-height:1.5;font-size:13px;margin:13px 0;cursor:pointer}.studio-check input{width:17px;height:17px;flex-shrink:0;margin:2px 0 0;accent-color:#3268d7}.studio-note{font-size:12px!important;line-height:1.6;color:#715821;background:#fff7df;padding:12px;border-radius:9px;margin:12px 0}.studio-muted,.muted{font-size:12px;line-height:1.6;color:#607087}.studio-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.studio-export{border:1px solid #dbe5f3;background:#f5f9ff;border-radius:14px;padding:18px;margin-top:18px}.studio-export .studio-actions{margin-top:12px}.studio-notice{padding:13px 16px;background:#eff4fc;color:#344e72;border:1px solid #d3e1f3;border-radius:11px;margin-top:15px;line-height:1.6;overflow-wrap:anywhere}.studio-notice.error{background:#fff1ef;border-color:#f0c7c1;color:#9b392f}.studio-notice.success{background:#eefaf4;border-color:#c9e7d7;color:#236446}.studio-result{padding:18px;background:#edf9f3;border:1px solid #bfdfce;border-radius:13px;margin:18px 0 0}.studio-result strong{font-size:20px}.studio-result p{font-size:14px;line-height:1.6}.studio-progress{margin:15px 0}.studio-progress-head{display:flex;justify-content:space-between;align-items:center;gap:10px}.studio-track{height:8px;background:#e7edf7;border-radius:20px;margin-top:10px;overflow:hidden}.studio-track span{display:block;height:100%;background:#3268d7;width:0}.ppt-page-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-top:16px}.ppt-page{border:1px solid #d4e0ef;border-radius:12px;padding:10px;background:#fff;min-width:0}.ppt-page.off{background:#f0f3f7;opacity:.58}.ppt-thumb{aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;background:#eaf0f6;border-radius:7px;overflow:hidden}.ppt-thumb img{width:100%;height:100%;object-fit:contain}.page-label{display:flex;gap:6px;align-items:center;font-size:12px;margin:12px 0}.page-label small{margin-left:auto}.page-label input{accent-color:#3268d7}.page-actions{display:flex;gap:6px}.page-actions button{min-width:32px;min-height:32px;border:1px solid #d5dfeb;background:#fff;border-radius:7px;cursor:pointer}.page-actions button:disabled{opacity:.35}.studio-range{display:flex;gap:8px;margin:12px 0;align-items:end}.studio-range label{flex:1;margin:0}.studio-password{margin-top:14px}.studio-password input{flex:1;min-width:0;padding:10px;border:1px solid #b9c9dc;border-radius:8px}.studio-dialog{border:0;border-radius:18px;padding:20px;max-width:min(95vw,950px);width:fit-content}.studio-dialog::backdrop{background:#17283bc4}.studio-dialog img{display:block;max-width:100%;max-height:72vh;object-fit:contain;margin:12px auto}.studio-dialog button{float:right}.studio-dialog p{clear:both;font-size:13px}.studio-count{display:block;font-size:12px;color:#59708b;margin:9px 0}.form-fields{max-height:470px;overflow:auto;padding-right:4px}.form-field{padding:13px 0;border-bottom:1px solid #e0e7ef;display:grid;gap:7px;overflow-wrap:anywhere}.form-field>label{font-size:13px;font-weight:650}.form-field small{font-size:11px;color:#6d7c90}.form-field .required{color:#b03e35}.form-field input[type=checkbox]{width:20px;height:20px;accent-color:#137b69}.field-page{border:0;background:transparent;color:#2862b4;font-size:12px!important;text-align:left;padding:0;cursor:pointer}.form-preview-area{min-width:0}.form-preview-toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}.form-preview-toolbar select{padding:9px;border:1px solid #cdd8e6;border-radius:8px;max-width:100%}.form-canvas-wrap{background:#e8edf3;padding:16px;border-radius:13px;min-height:300px;text-align:center}.form-canvas-wrap canvas{display:block;width:100%;height:auto;box-shadow:0 5px 20px #1b304e24;cursor:crosshair;background:white}.overlay-item{display:flex;align-items:center;justify-content:space-between;gap:9px;padding:9px 0;border-bottom:1px solid #e0e7ef;font-size:12px;overflow-wrap:anywhere}.overlay-item span{min-width:0}.form-text-panel{margin-top:16px}.form-text-panel summary{font-size:16px;font-weight:650;cursor:pointer;margin-bottom:15px}.studio-shell input[type=color]{padding:4px}.studio-shell textarea{resize:vertical}.studio-bottom-copy{font-size:12px;color:#61738c;line-height:1.6;margin-top:15px}.studio-section-title{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.studio-section-title h2{font-size:20px;margin:0}.studio-divider{height:1px;background:#dfe6ef;margin:18px 0}
@media(max-width:1000px){.studio-layout{grid-template-columns:290px minmax(0,1fr)}.ppt-page-list{grid-template-columns:repeat(2,minmax(0,1fr))}.studio-body{padding:18px}}
@media(max-width:760px){.studio-layout{grid-template-columns:1fr}.studio-hero{padding:25px 0}.studio-hero h1{letter-spacing:-1px}.studio-hero p{font-size:15px}.studio-top{padding:16px}.studio-top strong{font-size:16px}.studio-body{padding:13px}.studio-drop{padding:22px 12px}.studio-panel{padding:15px}.studio-btn{min-height:44px}.form-fields{max-height:360px}.form-canvas-wrap{padding:8px}.studio-export .studio-actions .primary{width:100%}}
@media(prefers-reduced-motion:reduce){.studio-shell *{scroll-behavior:auto;transition:none}}