/* === PDF工具通用样式 === */
.pdf-container{max-width:820px;margin:0 auto;padding:20px;}
.pdf-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;padding:18px 22px;background:linear-gradient(135deg,#e8f3ff 0%,#d0e8ff 30%,#b8dbff 50%,#d0e8ff 70%,#e8f3ff 100%);border-radius:12px;color:#222;box-shadow:0 2px 8px rgba(0,0,0,.08);}
.pdf-header-left{display:flex;align-items:center;gap:14px;}
.pdf-header-icon{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,#1677ff,#0958d9);display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff;flex-shrink:0;}
.pdf-header-title{font-size:20px;font-weight:700;}
.pdf-header-sub{font-size:12px;color:#666;margin-top:2px;}
.pdf-help-btn{background:rgba(255,255,255,.7);color:#333;border:1px solid rgba(0,0,0,.15);padding:8px 18px;border-radius:20px;font-size:13px;cursor:pointer;transition:all .2s;white-space:nowrap;}
.pdf-help-btn:hover{background:rgba(255,255,255,.95);}
.pdf-tool-body{background:#fff;border:1px solid #e8e8e8;border-radius:12px;padding:18px;margin-bottom:16px;box-shadow:0 1px 4px rgba(0,0,0,.04);}
.pdf-drop-zone{border:2px dashed #d9d9d9;border-radius:10px;padding:30px;text-align:center;cursor:pointer;transition:all .2s;background:#fafafa;margin-bottom:16px;}
.pdf-drop-zone:hover,.pdf-drop-zone.dragover{border-color:#1677ff;background:#f0f7ff;}
.pdf-drop-icon{font-size:36px;margin-bottom:8px;}
.pdf-drop-text{font-size:14px;color:#666;}
.pdf-drop-hint{font-size:12px;color:#999;margin-top:4px;}
.pdf-file-list{margin-bottom:16px;}
.pdf-file-item{display:flex;align-items:center;gap:12px;padding:12px 14px;background:#fafafa;border:1px solid #f0f0f0;border-radius:8px;margin-bottom:8px;}
.pdf-file-icon{font-size:24px;flex-shrink:0;}
.pdf-file-info{flex:1;min-width:0;}
.pdf-file-name{font-size:14px;font-weight:600;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pdf-file-meta{font-size:12px;color:#999;margin-top:2px;}
.pdf-file-remove{background:none;border:none;color:#ff4d4f;cursor:pointer;font-size:18px;padding:4px 8px;}
.pdf-file-remove:hover{color:#d9363e;}
.pdf-actions{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap;}
.pdf-btn{padding:10px 20px;border-radius:8px;font-size:14px;cursor:pointer;border:none;transition:all .2s;font-weight:600;}
.pdf-btn-primary{background:linear-gradient(135deg,#1677ff,#0958d9);color:#fff;}
.pdf-btn-primary:hover{opacity:.9;transform:translateY(-1px);}
.pdf-btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;}
.pdf-btn-default{background:#fff;color:#333;border:1px solid #d9d9d9;}
.pdf-btn-default:hover{background:#f5f5f5;}
.pdf-btn-default:disabled{opacity:.5;cursor:not-allowed;}
.pdf-log-box{background:var(--bg-code,#f5f5f5);border-radius:8px;padding:12px;max-height:200px;overflow-y:auto;font-family:monospace;font-size:12px;line-height:1.6;}
.pdf-log-line{color:#bbb;margin-bottom:2px;}
.pdf-log-line.success{color:#52c41a;}
.pdf-log-line.error{color:#ff4d4f;}
.pdf-log-line.info{color:#69b1ff;}
.pdf-result-list{margin-top:16px;}
.pdf-result-item{display:flex;align-items:center;gap:12px;padding:12px 14px;background:#f6ffed;border:1px solid #b7eb8f;border-radius:8px;margin-bottom:8px;}
.pdf-result-name{flex:1;font-size:14px;font-weight:600;color:#333;}
.pdf-result-size{font-size:12px;color:#999;}
.pdf-result-download{background:#52c41a;color:#fff;border:none;padding:6px 14px;border-radius:6px;cursor:pointer;font-size:13px;}
.pdf-result-download:hover{background:#389e0d;}
.pdf-options{margin-bottom:16px;padding:14px;background:#fafafa;border-radius:8px;border:1px solid #f0f0f0;}
.pdf-option-row{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.pdf-option-row:last-child{margin-bottom:0;}
.pdf-option-label{font-size:14px;color:#333;min-width:80px;}
.pdf-option-input{flex:1;padding:8px 12px;border:1px solid #d9d9d9;border-radius:6px;font-size:14px;}
.pdf-option-input:focus{outline:none;border-color:#1677ff;}
.pdf-option-hint{font-size:12px;color:#999;margin-left:90px;}
.pdf-progress{height:8px;background:#f0f0f0;border-radius:4px;overflow:hidden;margin-bottom:8px;}
.pdf-progress-bar{height:100%;background:linear-gradient(90deg,#1677ff,#0958d9);transition:width .3s;border-radius:4px;}
.pdf-progress-text{font-size:12px;color:#666;text-align:center;}

/* i2s-info-panel 卡片样式 */
.i2s-info-panel .pdf-info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.i2s-info-panel .pdf-info-card{background:#fff;border:1px solid #f0f0f0;border-radius:10px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,.04);transition:all .25s ease;}
.i2s-info-panel .pdf-info-card:hover{box-shadow:0 6px 16px rgba(22,119,255,.12);border-color:#d6e8ff;transform:translateY(-2px);}
.i2s-info-panel .pdf-info-card-head{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.i2s-info-panel .pdf-info-icon{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,#1677ff,#0958d9);display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;flex-shrink:0;}
.i2s-info-panel .pdf-info-title{margin:0;font-size:15px;font-weight:700;color:#333;}
.i2s-info-panel .pdf-info-desc{margin:0;font-size:14px;color:#666;line-height:1.8;}
.i2s-info-panel .pdf-step{display:flex;gap:12px;margin-bottom:14px;align-items:flex-start;}
.i2s-info-panel .pdf-step:last-child{margin-bottom:0;}
.i2s-info-panel .pdf-step-num{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#1677ff,#0958d9);color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.i2s-info-panel .pdf-step-text{flex:1;}
.i2s-info-panel .pdf-step-text strong{color:#1677ff;font-weight:700;}
.i2s-info-panel .pdf-step-text p{margin:4px 0 0;color:#666;font-size:14px;line-height:1.8;}
.i2s-info-panel .pdf-faq-item{margin-bottom:12px;}
.i2s-info-panel .pdf-faq-item:last-child{margin-bottom:0;}
.i2s-info-panel .pdf-faq-q{font-weight:700;color:#333;margin-bottom:4px;}
.i2s-info-panel .pdf-faq-q::before{content:"Q：";color:#1677ff;}
.i2s-info-panel .pdf-faq-a{color:#666;font-size:14px;line-height:1.8;padding-left:24px;}
.i2s-info-panel .pdf-faq-a::before{content:"A：";color:#52c41a;font-weight:700;}

/* 响应式 */
@media (max-width:600px){
  .pdf-header{flex-direction:column;gap:12px;text-align:center;}
  .pdf-header-left{flex-direction:column;text-align:center;}
  .i2s-info-panel .pdf-info-grid{grid-template-columns:1fr;gap:10px;}
  .i2s-info-panel .pdf-info-card{padding:12px;}
  .pdf-actions{flex-direction:column;}
  .pdf-btn{width:100%;}
}

/* 夜间模式 */
body.dark .pdf-tool-body{background:var(--card,#1e293b);border-color:var(--border,#334155);}
body.dark .pdf-drop-zone{background:var(--bg-2,#1a2332);border-color:var(--border-2,#475569);}
body.dark .pdf-drop-zone:hover,body.dark .pdf-drop-zone.dragover{background:var(--blue-soft,#1e3a5f);border-color:#1677ff;}
body.dark .pdf-drop-text{color:var(--text-2,#94a3b8);}
body.dark .pdf-file-item{background:var(--bg-2,#1a2332);border-color:var(--border,#334155);}
body.dark .pdf-file-name{color:var(--text-1,#f1f5f9);}
body.dark .pdf-btn-default{background:var(--bg-2,#1a2332);color:var(--text-1,#f1f5f9);border-color:var(--border-2,#475569);}
body.dark .pdf-options{background:var(--bg-2,#1a2332);border-color:var(--border,#334155);}
body.dark .pdf-option-label{color:var(--text-1,#f1f5f9);}
body.dark .pdf-option-input{background:var(--card,#1e293b);border-color:var(--border-2,#475569);color:var(--text-1,#f1f5f9);}
body.dark .pdf-result-item{background:rgba(82,196,26,.08);border-color:rgba(82,196,26,.2);}
body.dark .pdf-result-name{color:var(--text-1,#f1f5f9);}
body.dark .i2s-info-panel{background:var(--card,#1e293b);border-color:var(--border,#334155);}
body.dark .i2s-info-panel .pdf-info-card{background:var(--bg-2,#1a2332);border-color:var(--border,#334155);}
body.dark .i2s-info-panel .pdf-info-title{color:var(--text-1,#f1f5f9);}
body.dark .i2s-info-panel .pdf-info-desc{color:var(--text-2,#94a3b8);}
body.dark .i2s-info-panel .pdf-faq-q{color:var(--text-1,#f1f5f9);}
body.dark .i2s-info-panel .pdf-faq-a{color:var(--text-2,#94a3b8);}
body.dark .pdf-progress{background:var(--border,#334155);}