.table-merger-container{--tm-bg: #f4f7fc;--tm-card: rgba(255, 255, 255, .92);--tm-soft: #f7f9fd;--tm-line: #e5eaf3;--tm-line-strong: #cfd8e8;--tm-text: #0f172a;--tm-sub: #41506b;--tm-muted: #6b7a94;--tm-primary: #022a99;--tm-primary-dark: #021f70;--tm-primary-soft: #eef3ff;--tm-accent: #0ea5b7;--tm-success: #12a878;--tm-danger: #e5484d;--tm-warning: #c98a12;--tm-shadow: 0 20px 50px rgba(15, 23, 42, .1);--tm-shadow-soft: 0 8px 26px rgba(15, 23, 42, .06);--tm-radius-lg: 26px;--tm-radius-md: 20px;--tm-radius-sm: 12px;--tm-sans: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;min-height:100vh;padding:clamp(16px,2.6vw,34px);color:var(--tm-text);font-family:var(--tm-sans);background:radial-gradient(circle at 8% -4%,rgba(2,42,153,.14),transparent 32%),radial-gradient(circle at 94% 4%,rgba(14,165,183,.12),transparent 28%),linear-gradient(180deg,#f9fbff 0%,var(--tm-bg) 100%)}.table-merger-container *,.table-merger-container *:before,.table-merger-container 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#c3d2ff;border-radius:999px;color:var(--tm-primary);background:#fff;cursor:pointer;font-size:13px;font-weight:800;transition:background .18s ease,transform .18s ease}.tm-back:hover{background:var(--tm-primary-soft);transform:translate(-2px)}.tm-eyebrow{display:inline-flex;align-items:center;margin-bottom:10px;padding:6px 11px;border:1px solid #c3d2ff;border-radius:999px;color:var(--tm-primary);background:var(--tm-primary-soft);font-size:11px;font-weight:900;letter-spacing:.09em;text-transform:uppercase}.tm-eyebrow.ai{border-color:#0ea5b759;color:#0b7285;background:#e6fbfd}.tm-hero-main h1{margin:4px 0 10px;font-size:clamp(30px,3.6vw,46px);font-weight:900;line-height:1.06;letter-spacing:-.045em}.tm-hero-main p{max-width:680px;margin:0;color:var(--tm-sub);font-size:15px;line-height:1.75}.tm-hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.tm-pill{display:inline-flex;align-items:center;min-height:28px;padding:0 12px;border:1px solid var(--tm-line);border-radius:999px;color:var(--tm-sub);background:#ffffffe6;font-size:12px;font-weight:800}.tm-pill.ai{border-color:#0ea5b766;color:#0b7285;background:linear-gradient(135deg,#e6fbfd,#eef3ff)}.tm-pill.sm{min-height:24px;font-size:11px}.tm-hero-stats{display:grid;grid-template-columns:repeat(2,minmax(108px,1fr));gap:10px;min-width:240px}.tm-hero-stats span{padding:13px 12px;border:1px solid var(--tm-line);border-radius:16px;background:#ffffffeb;text-align:center;box-shadow:0 8px 20px #022a990f}.tm-hero-stats strong,.tm-hero-stats small{display:block}.tm-hero-stats strong{color:var(--tm-primary);font-size:21px;font-variant-numeric:tabular-nums}.tm-hero-stats small{margin-top:3px;color:var(--tm-muted);font-size:11px;font-weight:800}.tm-stepper{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:16px}.tm-step{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--tm-line);border-radius:16px;background:#ffffffd1;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease}.tm-step-dot{display:grid;width:28px;height:28px;flex:0 0 28px;place-items:center;border-radius:50%;color:var(--tm-muted);background:#eef2f9;font-size:13px;font-weight:900}.tm-step strong{display:block;color:var(--tm-text);font-size:14px}.tm-step small{display:block;margin-top:2px;color:var(--tm-muted);font-size:11.5px}.tm-step.is-active{border-color:#b9caff;background:#fff;box-shadow:0 10px 24px #022a991a}.tm-step.is-active .tm-step-dot{color:#fff;background:linear-gradient(135deg,var(--tm-primary),var(--tm-primary-dark))}.tm-step.is-done .tm-step-dot{color:#fff;background:var(--tm-success)}.tm-shell{margin-top:16px}.tm-card{border:1px solid rgba(229,234,243,.95);border-radius:var(--tm-radius-md);background:var(--tm-card);box-shadow:var(--tm-shadow-soft);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.tm-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:16px}.tm-card-head h2{font-size:19px;line-height:1.25}.tm-chip-soft{display:inline-flex;align-items:center;min-height:26px;padding:0 10px;border-radius:999px;color:var(--tm-primary);background:var(--tm-primary-soft);font-size:12px;font-weight:800;white-space:nowrap}.tm-badge-letter{display:grid;width:34px;height:34px;flex:0 0 34px;place-items:center;border-radius:12px;color:var(--tm-primary);background:var(--tm-primary-soft);font-weight:900}.tm-upload-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.tm-upload-card{display:flex;flex-direction:column;padding:18px;transition:border-color .2s ease,box-shadow .2s ease}.tm-upload-card.is-ready{border-color:#c3d2ff}.tm-dropzone{display:flex;min-height:190px;flex-direction:column;align-items:center;justify-content:center;gap:9px;padding:26px;border:1.5px dashed #c3d2ff;border-radius:18px;background:linear-gradient(135deg,#f0f5ffd9,#e9fafc99);text-align:center;cursor:pointer;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease}.tm-dropzone:hover,.tm-dropzone.is-dragging{transform:translateY(-2px);border-color:var(--tm-primary);box-shadow:0 16px 34px #022a9924}.tm-dropzone.has-file{border-style:solid;border-color:#12a87866;background:linear-gradient(135deg,#e9fbf4e6,#f0f5ffbf)}.tm-dropzone.is-loading{pointer-events:none;cursor:wait;border-color:var(--tm-line);background:linear-gradient(90deg,#f7f9fd 25%,#eef3ff,#f7f9fd 75%);background-size:200% 100%;animation:tm-shimmer 1.4s ease-in-out infinite}@keyframes tm-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.tm-dropzone-icon{display:grid;width:58px;height:58px;place-items:center;border:1px solid #c3d2ff;border-radius:20px;color:var(--tm-primary);background:#fff;box-shadow:0 12px 26px #022a991f;font-size:26px;font-weight:900}.tm-dropzone.is-loading .tm-dropzone-icon{border-color:var(--tm-line-strong);color:var(--tm-muted);box-shadow:none;animation:tm-pulse 1.2s ease-in-out infinite}@keyframes tm-pulse{0%,to{opacity:.5;transform:scale(1)}50%{opacity:1;transform:scale(1.06)}}.tm-dropzone p{max-width:100%;overflow:hidden;margin:0;color:var(--tm-text);font-size:15.5px;font-weight:900;text-overflow:ellipsis;white-space:nowrap}.tm-dropzone small,.tm-ai-desc,.tm-step small{color:var(--tm-muted);font-size:12.5px;line-height:1.6}.tm-card-foot{display:flex;flex-direction:column;gap:10px;margin-top:14px}.tm-mini-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.tm-mini-stats span{padding:9px;border:1px solid var(--tm-line);border-radius:12px;color:var(--tm-muted);background:var(--tm-soft);text-align:center;font-size:12px;font-weight:800}.tm-mini-stats strong{display:block;margin-bottom:2px;color:var(--tm-primary);font-size:17px;font-variant-numeric:tabular-nums}.tm-field{display:flex;flex-direction:column;gap:7px;margin-top:14px;min-width:0}.tm-field>span,.tm-section-title{color:var(--tm-sub);font-size:13px;font-weight:900}.tm-field select{width:100%;min-height:42px;padding:0 12px;border:1px solid var(--tm-line);border-radius:12px;outline:none;color:var(--tm-text);background:var(--tm-soft);font:14px var(--tm-sans);transition:border-color .18s ease,box-shadow .18s ease}.tm-field select:focus{border-color:#b9caff;box-shadow:0 0 0 3px #022a991f;background:#fff}.tm-workspace{display:grid;grid-template-columns:minmax(0,1fr) 348px;gap:16px;align-items:start;margin-top:16px}.tm-main-panel{display:flex;min-width:0;flex-direction:column;gap:16px}.tm-main-panel>.tm-card,.tm-ai-panel,.tm-progress,.tm-help-card,.tm-result-card{padding:18px}.tm-join-row{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:12px;align-items:end}.tm-join-arrow{display:grid;width:38px;height:38px;place-items:center;margin-bottom:4px;border-radius:12px;color:var(--tm-primary);background:var(--tm-primary-soft);font-size:15px;font-weight:900}.tm-strategy{margin-top:18px}.tm-radio-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px}.tm-radio{min-height:36px;padding:0 14px;border:1px solid var(--tm-line);border-radius:999px;color:var(--tm-sub);background:var(--tm-soft);cursor:pointer;font-size:13px;font-weight:800;transition:all .18s ease}.tm-radio.is-on{border-color:#b9caff;color:var(--tm-primary);background:var(--tm-primary-soft);box-shadow:inset 0 0 0 1px #022a991f}.tm-fill-section{margin-top:18px}.tm-fill-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.tm-link-actions{display:flex;gap:6px}.tm-link-actions button{min-height:28px;padding:0 10px;border:1px solid var(--tm-line);border-radius:999px;color:var(--tm-sub);background:#fff;cursor:pointer;font-size:12px;font-weight:800}.tm-link-actions button:hover:not(:disabled){border-color:#b9caff;color:var(--tm-primary);background:var(--tm-primary-soft)}.tm-link-actions button:disabled{opacity:.5;cursor:not-allowed}.tm-column-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:9px;margin-top:10px}.tm-column-chip{display:flex;align-items:center;gap:8px;min-width:0;padding:10px 11px;border:1px solid var(--tm-line);border-radius:12px;background:var(--tm-soft);cursor:pointer;transition:border-color .18s ease,background .18s ease,transform .18s ease}.tm-column-chip:hover{transform:translateY(-1px);border-color:#c3d2ff}.tm-column-chip.is-on{border-color:#b9caff;background:var(--tm-primary-soft)}.tm-column-chip input{accent-color:var(--tm-primary)}.tm-column-chip span{overflow:hidden;color:var(--tm-sub);font-size:13px;font-weight:800;text-overflow:ellipsis;white-space:nowrap}.tm-warning{margin-top:10px;padding:12px;border:1px solid #fbe3a8;border-radius:12px;color:#8a5a06;background:#fffbeb;font-size:13px;line-height:1.6}.tm-actions,.tm-export-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.tm-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 16px;border:1px solid transparent;border-radius:13px;cursor:pointer;font-size:14px;font-weight:900;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease}.tm-btn.block{width:100%;margin-top:9px}.tm-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 10px 24px #0f172a1f}.tm-btn:disabled{opacity:.55;cursor:not-allowed}.tm-btn.primary{color:#fff;background:linear-gradient(135deg,var(--tm-primary),var(--tm-primary-dark));box-shadow:0 12px 26px #022a992e}.tm-btn.ghost{color:var(--tm-sub);border-color:var(--tm-line);background:#fff}.tm-btn.ai{width:100%;color:#fff;background:linear-gradient(135deg,var(--tm-primary),var(--tm-accent));box-shadow:0 12px 28px #022a9933}.tm-btn.clean{width:100%;margin-top:9px;color:#0b6b4f;background:linear-gradient(135deg,#d6f5e7,#d9ecff)}.tm-tags{display:flex;flex-wrap:wrap;gap:6px;align-content:flex-start;max-height:152px;overflow:auto}.tm-tags.compact{max-height:none}.tm-tags span,.tm-tags em{display:inline-flex;min-height:26px;align-items:center;padding:0 9px;border-radius:999px;color:var(--tm-primary);background:var(--tm-primary-soft);font-size:12px;font-style:normal;font-weight:800}.tm-tags.alt span{color:#0b7285;background:#e6fbfd}.tm-tags.common span{color:#0b7a55;background:#e7f8f0}.tm-tags em{color:var(--tm-muted);background:#eef2f9}.tm-headers-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.tm-headers-grid h3{margin-bottom:9px;color:var(--tm-text);font-size:14px}.tm-ai-panel{position:sticky;top:18px}.tm-ai-desc{margin:0}.tm-ai-panel>.tm-btn.ai{margin-top:14px}.tm-insight{margin-top:14px;padding:13px;border:1px solid #d7e2ff;border-radius:16px;background:linear-gradient(135deg,#f3f7ff,#eafafd)}.tm-insight.is-degraded{border-color:#fbe3a8;background:linear-gradient(135deg,#fffaf0,#fdf6e7)}.tm-insight-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:9px}.tm-insight-head strong{color:var(--tm-primary);font-size:13px}.tm-confidence{padding:3px 9px;border-radius:999px;color:#0b7285;background:#e6fbfd;font-size:11.5px;font-weight:900}.tm-join-preview{display:flex;align-items:center;gap:8px;padding:10px 12px;border:1px solid #dbe4f7;border-radius:12px;background:#fff;font-size:13px;font-weight:800}.tm-join-preview span{overflow:hidden;color:var(--tm-text);text-overflow:ellipsis;white-space:nowrap}.tm-join-preview i{color:var(--tm-primary);font-style:normal}.tm-map-list,.tm-issue-list{display:flex;flex-direction:column;gap:6px;margin:10px 0 0;padding:0;list-style:none}.tm-map-list li,.tm-issue-list li{display:flex;align-items:center;gap:7px;min-width:0;font-size:12.5px;color:var(--tm-sub)}.tm-map-list b,.tm-issue-list b{overflow:hidden;color:var(--tm-text);text-overflow:ellipsis;white-space:nowrap}.tm-map-list i{color:var(--tm-primary);font-style:normal;font-weight:900}.tm-map-list span,.tm-issue-list span{overflow:hidden;color:var(--tm-muted);text-overflow:ellipsis;white-space:nowrap}.tm-map-list .more{color:var(--tm-muted);font-size:12px}.tm-insight-advice{margin:10px 0 0;color:var(--tm-sub);font-size:12.5px;line-height:1.7}.tm-progress{margin-top:16px;text-align:center}.tm-progress-track{height:10px;overflow:hidden;border-radius:999px;background:#e7ecf6}.tm-progress-track div{height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--tm-primary),var(--tm-accent));transition:width .24s ease}.tm-progress p{margin:10px 0 0;color:var(--tm-muted);font-size:13px;font-weight:800}.tm-result-card{margin-top:16px}.tm-result-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:14px}.tm-result-head h2{font-size:19px}.tm-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:14px}.tm-metrics span{padding:12px;border:1px solid var(--tm-line);border-radius:14px;background:var(--tm-soft);text-align:center}.tm-metrics strong{display:block;color:var(--tm-primary);font-size:20px;font-variant-numeric:tabular-nums}.tm-metrics small{display:block;margin-top:3px;color:var(--tm-muted);font-size:11.5px;font-weight:800}.tm-metrics .good strong{color:var(--tm-success)}.tm-metrics .warn strong{color:var(--tm-warning)}.tm-metrics .bad strong{color:var(--tm-danger)}.tm-table-wrap{max-height:520px;overflow:auto;border:1px solid var(--tm-line);border-radius:16px}.tm-result-table{width:100%;border-collapse:collapse;font-size:13px}.tm-result-table th{position:sticky;top:0;z-index:1;padding:11px 12px;border-bottom:1px solid var(--tm-line-strong);color:var(--tm-text);background:#eef2f9;text-align:left;white-space:nowrap}.tm-new-col{margin-left:6px;padding:1px 6px;border-radius:999px;color:#0b7285;background:#e6fbfd;font-size:10.5px;font-style:normal;font-weight:900}.tm-result-table td{max-width:260px;overflow:hidden;padding:10px 12px;border-bottom:1px solid var(--tm-line);color:var(--tm-sub);text-overflow:ellipsis;white-space:nowrap}.tm-result-table tbody tr:nth-child(2n){background:#f7f9fdb3}.tm-result-table tbody tr:hover{background:var(--tm-primary-soft)}.tm-result-table tbody tr.is-matched td:first-child{box-shadow:inset 3px 0 0 var(--tm-success)}.tm-table-note{margin-top:10px;color:var(--tm-muted);font-size:12px;line-height:1.6;text-align:center}.tm-help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:16px}.tm-help-card h3{margin-bottom:8px;color:var(--tm-text);font-size:16px}.tm-help-card p{margin:0;color:var(--tm-muted);font-size:13px;line-height:1.65}.tm-status{margin-top:14px;padding:12px 14px;border-radius:14px;font-size:13px;font-weight:800}.tm-status.success{color:#0b7a55;background:#e7f8f0;border:1px solid #b7ecd3}.tm-status.error{color:#b3261e;background:#fdecec;border:1px solid #f6c9c6}.tm-status.info{color:#02237f;background:#eef3ff;border:1px solid #c3d2ff}@media (max-width: 1180px){.tm-workspace{grid-template-columns:1fr}.tm-ai-panel{position:static}.tm-headers-grid{grid-template-columns:1fr}.tm-stepper{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 900px){.tm-hero{grid-template-columns:1fr;align-items:start}.tm-hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));min-width:0}.tm-upload-grid,.tm-help-grid,.tm-metrics{grid-template-columns:1fr}.tm-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.tm-join-row{grid-template-columns:1fr}.tm-join-arrow{transform:rotate(90deg);margin:0 auto}}@media (max-width: 640px){.table-merger-container{padding:12px}.tm-hero,.tm-card{border-radius:18px}.tm-back{position:static;width:fit-content;margin-bottom:14px}.tm-stepper{grid-template-columns:1fr}.tm-dropzone{min-height:176px}.tm-result-head{flex-direction:column;align-items:flex-start}.tm-btn,.tm-actions,.tm-export-actions{width:100%}}