/* 亚马逊关键词调研专家 v3.1.2 */
#amzkw-root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;color:#1f2937;max-width:1000px;margin:0 auto;padding:8px;box-sizing:border-box}
#amzkw-root *,#amzkw-root *::before,#amzkw-root *::after{box-sizing:border-box}

/* Header */
.amzkw-header{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;background:-webkit-linear-gradient(135deg,#1e40af,#7c3aed);background:linear-gradient(135deg,#1e40af,#7c3aed);border-radius:16px;padding:18px 24px;margin-bottom:20px;color:#fff;-ms-flex-wrap:wrap;flex-wrap:wrap;gap:12px}
.amzkw-header-left{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:14px}
.amzkw-logo{font-size:32px}
.amzkw-title{font-size:18px;font-weight:700}
.amzkw-subtitle{font-size:12px;opacity:.8;margin-top:3px}
.amzkw-counter{text-align:center;background:rgba(255,255,255,.15);border-radius:12px;padding:10px 18px;min-width:100px}
.amzkw-counter-label{font-size:11px;opacity:.8}
.amzkw-counter-num{font-size:28px;font-weight:800;line-height:1.1}
.amzkw-counter-num.exhausted{color:#fca5a5}
.amzkw-counter-sub{font-size:11px;opacity:.75}
.amzkw-counter-sub a{color:#fde68a}

/* 步骤标签 */
.amzkw-section-step{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:10px;margin-bottom:12px}
.amzkw-step-num{background:#f59e0b;color:#fff;border-radius:50%;width:26px;height:26px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;font-weight:700;font-size:13px;-ms-flex-negative:0;flex-shrink:0}
.amzkw-step-label{font-size:16px;font-weight:700;color:#1f2937}
.amzkw-step-hint{font-size:12px;color:#9ca3af}
.amzkw-step-required{font-size:13px;color:#dc2626;font-weight:600}

/* 拖拽区 */
.amzkw-dropzone{border:2px dashed #d1d5db;border-radius:14px;padding:36px 20px;text-align:center;cursor:pointer;-webkit-transition:border-color .2s,background .2s;transition:border-color .2s,background .2s;background:#f9fafb}
.amzkw-dropzone:hover,.amzkw-dropzone.dragging{border-color:#6366f1;background:#eef2ff}
.amzkw-dropzone-icon{font-size:40px;margin-bottom:8px}
.amzkw-dropzone-text{font-size:16px;font-weight:600;color:#374151}
.amzkw-dropzone-hint{font-size:12px;color:#9ca3af;margin-top:6px}

/* 文件列表 */
.amzkw-file-list{margin-top:10px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;gap:6px}
.amzkw-file-item{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:10px;background:#f0fdf4;border:1px solid #86efac;border-radius:10px;padding:10px 14px}
.amzkw-file-item-name{-webkit-box-flex:1;-ms-flex:1;flex:1;font-size:13px;font-weight:500;color:#166534;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.amzkw-file-item-size{font-size:12px;color:#6b7280;white-space:nowrap}
.amzkw-file-item-remove{border:none;background:#fee2e2;color:#dc2626;border-radius:6px;cursor:pointer;padding:3px 8px;font-size:12px}
.amzkw-file-item-remove:hover{background:#fca5a5}

/* 工具支持 */
.amzkw-tools-support{margin-top:16px}
.amzkw-tools-label{font-size:13px;color:#6b7280;font-weight:600}
.amzkw-tool-card{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:12px;border:1px solid #c7d2fe;border-radius:12px;padding:12px 16px;position:relative;background:-webkit-linear-gradient(left,#eef2ff,#f5f3ff);background:linear-gradient(90deg,#eef2ff,#f5f3ff)}
.amzkw-tool-icon{font-size:26px}
.amzkw-tool-name{font-weight:700;font-size:14px;color:#1e40af}
.amzkw-tool-desc{font-size:12px;color:#6b7280;margin-top:2px}
.amzkw-badge-recommend{position:absolute;right:14px;top:50%;-webkit-transform:translateY(-50%);-ms-transform:translateY(-50%);transform:translateY(-50%);background:#4f46e5;color:#fff;border-radius:6px;padding:3px 10px;font-size:12px;font-weight:600}
.amzkw-tools-tags{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;gap:8px;margin-top:10px}
.amzkw-tools-tags span{background:#f3f4f6;border:1px solid #e5e7eb;border-radius:20px;padding:4px 12px;font-size:12px;color:#374151}

/* 描述框 */
.amzkw-desc-wrap{position:relative}
.amzkw-textarea{width:100%;min-height:130px;border:2px solid #e5e7eb;border-radius:12px;padding:14px 16px;font-size:13px;line-height:1.7;resize:vertical;font-family:inherit;color:#374151;-webkit-transition:border-color .2s;transition:border-color .2s;background:#fff}
.amzkw-textarea:focus{border-color:#6366f1;outline:none;-webkit-box-shadow:0 0 0 3px rgba(99,102,241,.1);box-shadow:0 0 0 3px rgba(99,102,241,.1)}
.amzkw-textarea.amzkw-input-error{border-color:#dc2626!important;background:#fff5f5}
.amzkw-textarea::-webkit-input-placeholder{color:#9ca3af}
.amzkw-textarea:-ms-input-placeholder{color:#9ca3af}
.amzkw-textarea::placeholder{color:#9ca3af}
.amzkw-desc-tips{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:flex-start;-ms-flex-align:flex-start;align-items:flex-start;gap:6px;margin-top:8px;padding:10px 14px;background:#fffbeb;border:1px solid #fde68a;border-radius:10px;font-size:12px;color:#92400e}

/* 按钮组 */
.amzkw-btn-row{display:-webkit-box;display:-ms-flexbox;display:flex;gap:12px;margin-top:20px}
.amzkw-btn-primary{-webkit-box-flex:1;-ms-flex:1;flex:1;background:-webkit-linear-gradient(135deg,#f59e0b,#d97706);background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;border:none;border-radius:12px;padding:14px 24px;font-size:15px;font-weight:700;cursor:pointer;-webkit-transition:opacity .2s;transition:opacity .2s}
.amzkw-btn-primary:hover{opacity:.92}
.amzkw-btn-secondary{background:#f3f4f6;color:#374151;border:1px solid #e5e7eb;border-radius:12px;padding:14px 20px;font-size:14px;font-weight:600;cursor:pointer}
.amzkw-btn-secondary:hover{background:#e5e7eb}
.amzkw-member-tip{text-align:center;font-size:13px;color:#92400e;margin-top:14px;padding:10px;background:#fffbeb;border-radius:10px}
.amzkw-member-tip a{color:#d97706;font-weight:600}

/* 分析中 */
.amzkw-analyzing-card{background:#fff;border-radius:16px;padding:40px 32px;-webkit-box-shadow:0 4px 24px rgba(0,0,0,.08);box-shadow:0 4px 24px rgba(0,0,0,.08);text-align:center}
.amzkw-analyzing-title{font-size:18px;font-weight:700;color:#1e40af;margin-bottom:24px}
.amzkw-progress-bar{background:#e5e7eb;border-radius:999px;height:12px;overflow:hidden;margin-bottom:12px}
.amzkw-progress-fill{height:100%;border-radius:999px;background:-webkit-linear-gradient(left,#6366f1,#8b5cf6);background:linear-gradient(90deg,#6366f1,#8b5cf6);-webkit-transition:width 1.2s ease;transition:width 1.2s ease}
.amzkw-progress-meta{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;gap:16px;font-size:14px;color:#6b7280;margin-bottom:16px}
.amzkw-progress-meta span:first-child{font-weight:700;color:#6366f1;font-size:16px}
.amzkw-progress-steps{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;gap:6px;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}
.amzkw-progress-step-tag{background:#f3f4f6;border-radius:20px;padding:4px 10px;font-size:12px;color:#374151}
.amzkw-progress-step-tag.done{background:#dcfce7;color:#166534}
.amzkw-analyzing-tip{margin-top:20px;font-size:13px;color:#9ca3af;font-style:italic}

/* 结果页 */
.amzkw-results-header{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;margin-bottom:16px;-ms-flex-wrap:wrap;flex-wrap:wrap;gap:8px}
.amzkw-btn-back{background:#f3f4f6;color:#374151;border:1px solid #e5e7eb;border-radius:10px;padding:8px 16px;font-size:13px;cursor:pointer;font-weight:600}
.amzkw-btn-back:hover{background:#e5e7eb}
.amzkw-results-actions{display:-webkit-box;display:-ms-flexbox;display:flex;gap:8px;-ms-flex-wrap:wrap;flex-wrap:wrap}
.amzkw-btn-outline{background:#fff;border:1px solid #d1d5db;color:#374151;border-radius:10px;padding:8px 14px;font-size:13px;cursor:pointer;white-space:nowrap}
.amzkw-btn-outline:hover{background:#f9fafb}
.amzkw-btn-green{background:#f0fdf4;border-color:#86efac;color:#166534}
.amzkw-btn-green:hover{background:#dcfce7}
.amzkw-tabs{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.amzkw-tab{background:#f3f4f6;color:#374151;border:none;border-radius:20px;padding:6px 14px;font-size:12px;cursor:pointer;-webkit-transition:background .2s,color .2s;transition:background .2s,color .2s;white-space:nowrap}
.amzkw-tab.active,.amzkw-tab:hover{background:#6366f1;color:#fff}
.amzkw-results-content{min-height:200px}

/* Markdown 渲染 */
.amzkw-md-body h1{font-size:20px;font-weight:800;color:#1e40af;margin:20px 0 12px;border-bottom:3px solid #e0e7ff;padding-bottom:6px}
.amzkw-md-body h2{font-size:17px;font-weight:700;color:#1f2937;margin:24px 0 10px;border-left:4px solid #6366f1;padding-left:10px}
.amzkw-md-body h3{font-size:15px;font-weight:700;color:#374151;margin:18px 0 8px}
.amzkw-md-body h4{font-size:14px;font-weight:600;color:#6b7280;margin:14px 0 6px}
.amzkw-md-body p{line-height:1.8;margin:8px 0;color:#374151}
.amzkw-md-body ul{padding-left:18px;margin:8px 0}
.amzkw-md-body li{line-height:1.9;color:#374151}
.amzkw-md-body strong{color:#1f2937}
.amzkw-md-body em{font-style:italic;color:#6b7280}
.amzkw-md-body pre{background:#f1f5f9;border-radius:10px;padding:16px;overflow-x:auto;font-size:12px}

/* 表格 */
.amzkw-table-wrap{overflow-x:auto;margin:4px 0 12px;border-radius:10px;border:1px solid #e5e7eb}
.amzkw-table{width:100%;border-collapse:collapse;font-size:13px}
.amzkw-table th{background:#f8fafc;padding:10px 12px;text-align:center;font-weight:700;color:#374151;border-bottom:2px solid #e5e7eb;white-space:nowrap}
.amzkw-table td{padding:9px 12px;text-align:center;border-bottom:1px solid #f1f5f9;color:#1f2937}
.amzkw-table td:nth-child(2){text-align:left;font-weight:500}
.amzkw-table tbody tr:hover{background:#f8fafc}
.amzkw-tbl-copy-btn{background:#eef2ff;color:#4f46e5;border:1px solid #c7d2fe;border-radius:8px;padding:5px 12px;font-size:12px;cursor:pointer;margin-bottom:6px;display:inline-block}
.amzkw-tbl-copy-btn:hover{background:#e0e7ff}

/* Search Terms 卡片 */
.amzkw-st-card{background:#fff;border:2px solid #6366f1;border-radius:14px;padding:20px 24px;margin-top:28px}
.amzkw-st-header{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;margin-bottom:8px;-ms-flex-wrap:wrap;flex-wrap:wrap;gap:8px}
.amzkw-st-title{font-size:15px;font-weight:700;color:#1e40af}
.amzkw-st-badge{font-size:13px;font-weight:700;background:#eef2ff;padding:3px 10px;border-radius:20px}
.amzkw-st-tip{font-size:12px;color:#6b7280;margin-bottom:12px;line-height:1.6}
.amzkw-st-content{background:#f8fafc;border:1px solid #e5e7eb;border-radius:10px;padding:14px 16px;font-size:13px;color:#1f2937;line-height:1.8;word-break:break-word;font-family:"Courier New",Courier,monospace;letter-spacing:.3px}
.amzkw-st-actions{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:12px;margin-top:12px;-ms-flex-wrap:wrap;flex-wrap:wrap}
.amzkw-btn-copy-st{background:-webkit-linear-gradient(135deg,#6366f1,#8b5cf6);background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:10px;padding:9px 20px;font-size:13px;font-weight:600;cursor:pointer}
.amzkw-btn-copy-st:hover{opacity:.88}
.amzkw-st-hint{font-size:12px;color:#9ca3af}

/* Toast */
.amzkw-toast{position:fixed;top:20px;right:20px;z-index:99999;background:#1f2937;color:#fff;border-radius:12px;padding:12px 20px;font-size:14px;font-weight:500;-webkit-box-shadow:0 8px 24px rgba(0,0,0,.2);box-shadow:0 8px 24px rgba(0,0,0,.2);opacity:0;-webkit-transform:translateY(-10px);-ms-transform:translateY(-10px);transform:translateY(-10px);-webkit-transition:opacity .3s,-webkit-transform .3s;transition:opacity .3s,transform .3s;max-width:380px;word-break:break-word}
.amzkw-toast.show{opacity:1;-webkit-transform:translateY(0);-ms-transform:translateY(0);transform:translateY(0)}
.amzkw-toast-success{background:#166534}
.amzkw-toast-error{background:#991b1b}
.amzkw-toast-info{background:#1e40af}

/* 响应式 */
@media(max-width:640px){
  .amzkw-header,.amzkw-header-left{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;text-align:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center}
  .amzkw-btn-row,.amzkw-results-header{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-align:start;-ms-flex-align:start;align-items:flex-start}
  .amzkw-results-actions{width:100%}
  .amzkw-btn-outline{-webkit-box-flex:1;-ms-flex:1;flex:1;text-align:center}
  .amzkw-st-header{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-align:start;-ms-flex-align:start;align-items:flex-start}
}

/* 分类复制按钮（每个关键词分类h3后面只有一个）*/
.amzkw-cat-copy-btn{display:inline-block;background:#eef2ff;color:#4f46e5;border:1px solid #c7d2fe;border-radius:8px;padding:6px 14px;font-size:13px;cursor:pointer;margin:8px 0 10px;-webkit-transition:background .15s;transition:background .15s}
.amzkw-cat-copy-btn:hover{background:#e0e7ff;color:#3730a3}
/* 保留旧按钮样式（词根分析等）*/
.amzkw-tbl-copy-btn{display:inline-block;background:#eef2ff;color:#4f46e5;border:1px solid #c7d2fe;border-radius:8px;padding:5px 12px;font-size:12px;cursor:pointer;margin-bottom:6px}
.amzkw-tbl-copy-btn:hover{background:#e0e7ff}