*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:#f6f7fb;color:#18202f}header{height:68px;position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:0 5%;background:#fffffff2;border-bottom:1px solid #e4e8ef;backdrop-filter:blur(12px)}header b{font-size:20px;cursor:pointer}nav{display:flex;gap:12px;align-items:center}select,button,input,textarea{font:inherit}select,header button{padding:8px;border:1px solid #dce2ea;border-radius:9px;background:#fff}.langlabel{font-size:14px;color:#42506b;font-weight:600;white-space:nowrap}.hero{text-align:center;padding:75px 20px;background:linear-gradient(135deg,#eef5ff,#fbf5ff)}.hero h1{font-size:clamp(36px,6vw,62px);line-height:1.1;margin:18px 0}.hero p{color:#66758a}.hero input{width:min(680px,100%);padding:16px;border:1px solid #dce2ea;border-radius:15px;outline:0}main{max-width:1180px;margin:auto;padding:30px 20px}.grid,#grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card{background:#fff;border:1px solid #e2e7ef;border-radius:16px;padding:18px;cursor:pointer}.card:hover{transform:translateY(-2px);box-shadow:0 10px 25px #17203312}.icon{font-size:30px}.card h3{margin:8px 0 4px}.card p{color:#728095;font-size:13px}section{padding:30px 0}/* ===== 导航栏菜单 ===== */#navmenus{gap:6px}.navright{display:flex;gap:12px;align-items:center}.navmenu{position:relative}.navhead{display:flex;align-items:center;gap:6px;padding:10px 15px;background:none;border:1px solid transparent;border-radius:9px;cursor:pointer;font-size:17px;font-weight:600;color:#33415e;white-space:nowrap;transition:background .15s,border-color .15s,color .15s}.navhead:hover{background:#f0f5ff;color:#2563eb}.navarrow{font-size:13px;color:#728095;transition:transform .18s}.navmenu.open .navarrow{transform:rotate(180deg)}.navmenu.open>.navhead{background:#f0f5ff;border-color:#d7dee9;color:#2563eb}.navpanel{display:none;position:absolute;top:calc(100% + 8px);left:0;min-width:250px;max-height:min(480px,65vh);overflow:auto;background:#fff;border:1px solid #e2e7ef;border-radius:12px;box-shadow:0 12px 32px #1720331f;padding:10px;z-index:30}.navmenu.open .navpanel{display:block}.navitem{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:8px;font-size:18px;color:#33415e;text-decoration:none;cursor:pointer;white-space:nowrap}.navitem:hover{background:#f0f5ff;color:#2563eb}.navicon{font-size:22px;line-height:1}body.dark .langlabel{color:#aebad0}body.dark .navhead{color:#dbe4f2}body.dark .navhead:hover{background:#1a2230;color:#60a5fa}body.dark .navmenu.open>.navhead{background:#1a2230;border-color:#303846;color:#60a5fa}body.dark .navarrow{color:#8b96a8}body.dark .navpanel{background:#171d28;border-color:#303846;box-shadow:0 12px 32px #00000066}body.dark .navitem{color:#dbe4f2}body.dark .navitem:hover{background:#1a2230;color:#60a5fa}footer{padding:30px 5%;border-top:1px solid #e4e8ef;color:#788497}footer a{color:#2563eb;text-decoration:none;margin:0 4px}footer a:hover{text-decoration:underline}.page-body{font-size:14px;line-height:1.8;color:#334155;text-align:left;max-height:60vh;overflow:auto;padding:4px 2px}.page-body h3{margin:18px 0 6px;color:#18202f}.page-body p{margin:8px 0}.modal{display:none;position:fixed;inset:0;background:#0008;z-index:20;place-items:center;padding:18px}.modal.show{display:grid}.box{background:#fff;width:min(700px,100%);max-height:90vh;overflow:auto;border-radius:18px;padding:25px}.box>button{float:right;border:0;background:none;font-size:28px}.box textarea,.box input{width:100%;padding:12px;margin:8px 0;border:1px solid #dce2ea;border-radius:10px}.run{background:#2563eb;color:white;border:0;border-radius:9px;padding:10px 15px;cursor:pointer}.notice{font-size:12px;color:#b45309;background:#fef3c7;border:1px solid #fde68a;border-radius:8px;padding:8px 10px;margin:8px 0;line-height:1.5}.filelabel{display:flex;align-items:center;gap:10px;padding:12px 14px;margin:8px 0;border:2px dashed #b4c2d6;border-radius:10px;cursor:pointer;background:#f0f5ff;transition:border-color .2s,background .2s}.filelabel:hover{border-color:#2563eb;background:#e8f0fe}.filelabel>span:first-child{color:#2563eb;font-weight:600;white-space:nowrap}.filename{color:#728095;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.result{white-space:pre-wrap;background:#f3f5f8;padding:14px;border-radius:10px;margin-top:12px;word-break:break-word}.preview{max-width:100%;max-height:300px;display:block;margin:12px auto}@media(max-width:850px){#grid,#cats{grid-template-columns:repeat(3,1fr)}}@media(max-width:600px){header{padding:0 14px}nav a{display:none}#grid,#cats{grid-template-columns:repeat(2,1fr)}.hero{padding:55px 15px}main{padding:20px 14px}}body.dark{background:#11151d;color:#eef2f8}body.dark header,.dark .card,.dark .cat,.dark .box{background:#1a202a;border-color:#303846}body.dark .hero{background:#171d28}body.dark input,body.dark select{background:#1a202a;color:inherit;border-color:#303846}body.dark .result{background:#11151d}body.dark .filelabel{background:#171d28;border-color:#303846}body.dark .filelabel:hover{border-color:#3b82f6;background:#1a2538}body.dark .filelabel>span:first-child{color:#60a5fa}body.dark .filename{color:#8b96a8}
/* ===== Resize 尺寸选择按钮组 ===== */
.sizeopts{margin:8px 0}.sizelbl{font-size:13px;color:#728095;margin-bottom:8px}.sizebtns{display:flex;flex-wrap:wrap;gap:8px}.szbtn{background:#ffffff;color:#334;font-size:13px;border:1px solid #d7dee9;border-radius:9px;padding:8px 13px;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.szbtn:hover{border-color:#2563eb;color:#2563eb}.szbtn.active{background:#2563eb;border-color:#2563eb;color:#fff}
.customsize{margin:8px 0}.cswrap{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 12px;background:#f0f5ff;border:1px solid #d7dee9;border-radius:10px}.cslbl{font-size:13px;color:#42506b;font-weight:600}.cswrap label{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#728095}.cswrap input[type=number]{width:86px;padding:7px 9px;border:1px solid #d7dee9;border-radius:8px;font-size:13px;color:#1c2b45;background:#fff}.locklbl{cursor:pointer;user-select:none}
body.dark .szbtn{background:#171d28;border-color:#303846;color:#c7d2e4}body.dark .szbtn:hover{border-color:#3b82f6;color:#60a5fa}body.dark .szbtn.active{background:#3b82f6;border-color:#3b82f6;color:#fff}body.dark .cswrap{background:#171d28;border-color:#303846}body.dark .cswrap input[type=number]{background:#11151f;border-color:#303846;color:#dbe4f2}body.dark .cslbl{color:#aebad0}
/* ===== 批量提示 + PDF 签名 ===== */
.batchhint{font-size:13px;color:#728095;margin:8px 0 2px}
.signwrap{display:flex;flex-wrap:wrap;gap:16px;margin:12px 0 4px}
.signcol{flex:1 1 300px;min-width:280px}
.siglbl{font-size:13px;color:#42506b;font-weight:600;margin-bottom:8px}
.sigpad{width:100%;height:160px;background:#fff;border:1px solid #d7dee9;border-radius:10px;cursor:crosshair;display:block;touch-action:none}
.pdfprevwrap{border:1px solid #d7dee9;border-radius:10px;background:#f0f5ff;padding:6px;max-height:340px;overflow:auto}
#pdfprev{display:block;max-width:100%;cursor:pointer}
.sigbtns{display:flex;gap:8px;align-items:center;margin-top:8px}
.pglabel{font-size:13px;color:#728095;min-width:64px;text-align:center}
body.dark .batchhint{color:#8b96a8}body.dark .siglbl{color:#aebad0}body.dark .sigpad{background:#11151f;border-color:#303846}body.dark .pdfprevwrap{background:#171d28;border-color:#303846}body.dark #pdfprev{filter:invert(88%) hue-rotate(180deg)}body.dark .pglabel{color:#8b96a8}
/* ===== 批量改名 ===== */
.brparams{margin:8px 0}.brparams .cswrap{gap:10px}.brparams input[type=text],.brparams select{padding:7px 9px;border:1px solid #d7dee9;border-radius:8px;font-size:13px;color:#1c2b45;background:#fff}.brbtns{display:flex;gap:8px;margin:10px 0}
.brtable{margin:10px 0;border:1px solid #e2e7ef;border-radius:10px;overflow:hidden;max-height:260px;overflow-y:auto;background:#fff}
.brrow{display:flex;gap:8px;padding:6px 12px;font-size:13px;align-items:center;border-bottom:1px solid #eef1f6}
.brrow:last-child{border-bottom:0}
.brhead{background:#f0f5ff;color:#42506b;font-weight:600}
.brsame{color:#9aa5b5}
.brrow .brold{flex:1;word-break:break-all}
.brrow .arrow{color:#2563eb}
.brrow .brnew{flex:1;word-break:break-all;font-weight:600}
body.dark .brtable{background:#1a202a;border-color:#303846}body.dark .brrow{border-color:#242b38}body.dark .brhead{background:#171d28;color:#aebad0}body.dark .brparams input[type=text],body.dark .brparams select{background:#11151f;border-color:#303846;color:#dbe4f2}