:root{
  --bg:#0f1117;--card:#171a23;--card2:#1e2230;--border:#2a2f3e;--border2:#343b4d;
  --text:#e8eaf0;--muted:#9aa3b5;--muted2:#6b7385;--accent:#5b8cff;--accent2:#7c5bff;
  --green:#34d399;--blue:#3b82f6;--red:#f87171;--orange:#fb923c;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow:hidden}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;background:var(--bg);border-bottom:1px solid var(--border)}
.topbar .brand{display:flex;align-items:center;gap:10px}
.topbar .brand svg{width:26px;height:26px}
.topbar .brand h1{font-size:15px;font-weight:700;color:var(--text)}
.topbar .back-hint{font-size:12px;color:var(--muted);text-decoration:none;padding:6px 14px;border-radius:8px;border:1px solid var(--border);transition:all .15s}
.topbar .back-hint:hover{color:var(--accent);border-color:var(--accent)}
.container{max-width:760px;margin:0 auto;padding:16px 20px 40px;height:calc(100vh - 53px);overflow-y:auto}
.container::-webkit-scrollbar{width:0}
.subtitle{text-align:center;color:var(--muted);font-size:13px;margin-bottom:20px}
.drop-zone{border:2px dashed var(--border2);border-radius:14px;padding:36px 24px;text-align:center;background:var(--card);transition:all .2s;cursor:pointer}
.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:rgba(91,140,255,.08)}
.drop-zone .icon-area{margin-bottom:8px}
.drop-zone .icon-area svg{width:42px;height:42px}
.drop-zone .dz-title{font-size:14px;font-weight:600}
.drop-zone .dz-hint{font-size:11px;color:var(--muted);margin-top:3px}
.drop-zone .dz-supported{font-size:10px;color:var(--muted2);margin-top:6px}
.section-label{font-size:13px;font-weight:600;margin:20px 0 8px;color:var(--text);display:flex;align-items:center;justify-content:space-between}
.section-label .output-inline{display:flex;align-items:center;gap:6px;font-weight:400}
.section-label .output-inline .path-box{display:flex;align-items:center;gap:4px;background:var(--card);border:1px solid var(--border);border-radius:8px;padding:3px 4px 3px 8px;font-size:11px;color:var(--text);max-width:230px;overflow:hidden;cursor:pointer;transition:border-color .15s}
.section-label .output-inline .path-box:hover{border-color:var(--accent)}
.section-label .output-inline .path-box .path-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:150px;display:inline-block;font-size:11px}
.section-label .output-inline .path-box .edit-btn{flex-shrink:0;background:var(--card2);border:none;border-radius:6px;padding:3px 7px;font-size:10px;cursor:pointer;color:var(--text);font-weight:500}
.section-label .output-inline .status-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.section-label .output-inline .status-dot.unset{background:var(--orange)}
.section-label .output-inline .status-dot.set{background:var(--green)}
.format-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.format-btn{padding:12px 8px;border:1.5px solid var(--border);border-radius:10px;background:var(--card);cursor:pointer;font-size:13px;font-weight:500;text-align:center;transition:all .15s;color:var(--text)}
.format-btn:hover{border-color:var(--accent);background:var(--card2)}
.format-btn.active{background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff;border-color:transparent}
.settings-row{display:flex;gap:12px;margin-top:12px;flex-wrap:wrap}
.settings-group{flex:1;min-width:100px}
.settings-group label{display:block;font-size:11px;color:var(--muted);margin-bottom:4px;font-weight:500}
.settings-group select{width:100%;padding:8px 10px;border:1.5px solid var(--border);border-radius:8px;font-size:12px;background:var(--card);color:var(--text);cursor:pointer}
.settings-group select:focus{outline:none;border-color:var(--accent)}
.file-list{margin-top:16px;max-height:260px;overflow-y:auto}
.file-list::-webkit-scrollbar{width:0}
.file-item{display:flex;align-items:center;padding:10px 14px;background:var(--card);border-radius:10px;margin-bottom:6px;gap:10px;border:1px solid var(--border)}
.file-item .name{flex:1;font-size:13px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-item .size{font-size:11px;color:var(--muted2);min-width:50px;text-align:right}
.file-item .status{font-size:11px;min-width:70px;text-align:right}
.file-item .status.ok{color:var(--green)}.file-item .status.error{color:var(--red)}.file-item .status.processing{color:var(--blue)}
.file-item .dl-btn{padding:5px 12px;background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff;border:none;border-radius:6px;font-size:11px;font-weight:500;cursor:pointer;white-space:nowrap;text-decoration:none}
.file-item .rm-btn{padding:5px 12px;background:rgba(248,113,113,.15);color:var(--red);border:none;border-radius:6px;font-size:11px;font-weight:500;cursor:pointer;white-space:nowrap}
.actions{margin-top:18px;display:flex;gap:10px;justify-content:center}
.btn{padding:10px 26px;border-radius:9px;font-size:13px;font-weight:600;cursor:pointer;border:none;transition:all .15s}
.btn-primary{background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff}.btn-primary:hover{opacity:.9}.btn-primary:disabled{background:var(--border2);cursor:not-allowed}
.btn-secondary{background:var(--card);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--accent)}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--card2);border:1px solid var(--border);color:var(--text);padding:9px 22px;border-radius:18px;font-size:12px;z-index:999;opacity:0;pointer-events:none;transition:opacity .3s}
.toast.show{opacity:1}
.folder-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s}
.folder-modal.show{opacity:1;pointer-events:auto}
.folder-modal .modal-box{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px;width:400px;max-width:90vw;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.folder-modal .modal-box h3{font-size:15px;font-weight:600;margin-bottom:6px;color:var(--text)}
.folder-modal .modal-box p{font-size:12px;color:var(--muted);margin-bottom:14px}
.folder-modal .modal-box input{width:100%;padding:10px 12px;border:1.5px solid var(--border);border-radius:9px;font-size:13px;background:var(--bg);color:var(--text);margin-bottom:4px}
.folder-modal .modal-box input:focus{outline:none;border-color:var(--accent)}
.folder-modal .modal-box .modal-actions{display:flex;gap:8px;justify-content:flex-end}
.folder-modal .modal-box .modal-actions button{padding:8px 18px;border-radius:8px;font-size:12px;font-weight:600;cursor:pointer;border:none}
.folder-modal .modal-box .modal-actions .cancel-btn{background:var(--card2);color:var(--text);border:1px solid var(--border)}
.folder-modal .modal-box .modal-actions .save-btn{background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff}
.footer{text-align:center;margin-top:28px;padding-top:16px;border-top:1px solid var(--border);color:var(--muted2);font-size:11px}
.saved-path{font-size:10px;color:var(--green);margin-top:4px;text-align:center;display:none}
.saved-path.show{display:block}