:root{--bg: #f3f6fb;--surface: #ffffff;--surface-soft: #f8fafc;--ink: #0b162d;--muted: #60708a;--line: #d4deec;--line-strong: #aebbd0;--primary: #0f62fe;--primary-strong: #0043ce;--primary-soft: #edf4ff;--accent: #1d4ed8;--accent-strong: #1e3a8a;--accent-soft: #eef4ff;--danger: #b42318;--warning: #c2410c;--warning-soft: #fff4ed;--shadow: none;font-family:Inter,Microsoft YaHei,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100dvh;background:var(--bg)}button,input,a{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(15,98,254,.2);outline-offset:2px}h1,h2,h3,p{margin:0}.app-shell{min-height:100dvh}.main-area{width:min(100%,1680px);margin:0 auto;padding:30px 32px 36px}.hero-header{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:26px}.hero-copy{min-width:0}.eyebrow{color:var(--primary);font-size:17px;font-weight:900;letter-spacing:0}h1{margin-top:8px;color:#08152c;font-size:40px;line-height:1.12;font-weight:900;letter-spacing:0}.hero-subtitle{margin-top:12px;color:#596b86;font-size:17px;line-height:1.5;font-weight:650}.header-side{max-width:520px;display:flex;align-items:flex-start;justify-content:flex-end;gap:12px;flex-wrap:wrap}.header-status{min-height:56px;max-width:520px;display:inline-flex;align-items:center;gap:12px;border:1px solid #98b9ff;border-radius:8px;background:var(--primary-soft);color:var(--primary);padding:13px 20px;box-shadow:var(--shadow)}.header-status span{color:var(--primary-strong);font-size:16px;font-weight:850;line-height:1.35;overflow-wrap:anywhere}.header-status.danger{color:var(--danger);border-color:#f2a7a2;background:#fff1f0;box-shadow:none}.header-status.danger span{color:var(--danger)}.stepper{display:grid;grid-template-columns:max-content minmax(80px,1fr) max-content minmax(80px,1fr) max-content;align-items:center;gap:18px;margin:0 auto 24px}.stepper i{display:block;height:2px;background:var(--line-strong)}.step-item{min-height:46px;display:inline-flex;align-items:center;gap:14px;color:#51627a;font-size:18px;font-weight:850;white-space:nowrap}.step-item span{width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line-strong);border-radius:50%;background:#fff;color:#536780;font-weight:900}.step-item.active{color:var(--primary)}.step-item.active span{border-color:var(--primary);background:var(--primary);color:#fff;box-shadow:none}.step-item.current span{background:#fff;color:var(--primary)}.workspace{display:grid;grid-template-columns:minmax(360px,480px) minmax(0,1fr);gap:20px;align-items:stretch}.panel{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:26px}.controls-panel{min-height:660px;display:flex;flex-direction:column}.preview-panel{min-height:660px}.panel-title{display:flex;align-items:center;gap:14px;margin-bottom:22px}.split-title{justify-content:space-between;align-items:center}h2{color:var(--ink);font-size:24px;line-height:1.3;font-weight:900}.upload-stack{display:grid;gap:14px}.upload-block{border:1px solid var(--line);border-radius:8px;background:#fff;padding:18px}.upload-block h3{margin-bottom:14px;color:var(--ink);font-size:16px;line-height:1.25;font-weight:850}.file-tile{width:100%;min-height:88px;display:grid;grid-template-columns:58px minmax(0,1fr) auto;align-items:center;gap:14px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);padding:14px 12px;text-align:left;transition:background .16s ease,border-color .16s ease,color .16s ease}.file-tile:hover,.file-tile.active{border-color:var(--primary);background:var(--primary-soft)}.file-tile.filled{border-color:var(--primary);background:#f8fbff}.file-icon{width:50px;height:50px;display:grid;place-items:center;border-radius:8px;color:#fff}.file-icon.excel{background:#11823b}.file-icon.folder{background:var(--primary)}.file-main{min-width:0;display:grid;gap:6px}.file-main strong{color:var(--ink);font-size:16px;font-weight:850;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-main small{color:var(--muted);font-size:14px;font-weight:650}.status-pill{min-height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;border:1px solid #98b9ff;padding:6px 12px;font-size:14px;font-weight:850;white-space:nowrap}.status-pill.success{border-color:#98b9ff;background:var(--primary-soft);color:var(--primary-strong)}.mini-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}.text-button{min-height:36px;display:inline-flex;align-items:center;gap:8px;border:0;background:transparent;color:var(--primary);padding:6px 4px;font-weight:850}.text-button:hover{color:var(--primary-strong)}.text-button.danger{color:var(--muted)}.text-button.danger:disabled{color:#98a2b3;opacity:.7}.field{display:grid;gap:8px;margin-top:22px}.field span{display:inline-flex;align-items:center;gap:7px;color:var(--ink);font-weight:850}.field input,.search-field input{width:100%;min-height:48px;border:1px solid var(--line);border-radius:8px;padding:10px 14px;color:var(--ink);background:#fff}.field input::placeholder,.search-field input::placeholder{color:#8a98ad}.file-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.file-list 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ease}.secondary-button,.secondary-link,.ghost-button{background:#fff;color:var(--ink)}.secondary-button:hover,.secondary-link:hover,.ghost-button:hover{border-color:var(--primary);color:var(--primary)}.secondary-button:disabled,.primary-button:disabled{opacity:.46}.primary-button,.download-button{border-color:var(--primary);background:var(--primary);color:#fff;box-shadow:none}.primary-button:hover,.download-button:hover{background:var(--primary-strong)}.primary-button.accent{flex:1 1 auto;border-color:var(--accent);background:var(--accent);box-shadow:none}.primary-button.accent:hover{background:var(--accent-strong)}.secondary-button{flex:1 1 auto;color:var(--primary);border-color:#7da8ff}.result-heading{margin-bottom:20px;align-items:center;justify-content:space-between;gap:16px}.heading-controls{margin-left:auto;display:flex;align-items:center;justify-content:flex-end;gap:10px;min-width:0}.heading-search{flex:0 0 300px;width:300px;max-width:300px}.heading-result-actions{flex:0 0 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22px;border-right:1px solid var(--line);color:var(--primary)}.metric:last-child{border-right:0;color:var(--warning)}.metric:nth-child(2){color:var(--primary-strong)}.metric p{color:var(--muted);font-size:15px;font-weight:750}.metric span{grid-column:2;display:block;color:var(--ink);font-size:28px;font-weight:900;line-height:1;overflow-wrap:anywhere}.metric.warn span{color:var(--ink)}.inline-alert{min-height:44px;display:flex;align-items:flex-start;gap:10px;border:1px solid #f7b4a5;border-radius:8px;background:var(--warning-soft);color:var(--warning);padding:12px 14px;margin:-4px 0 16px}.inline-alert span{color:#7c2d12;font-weight:750;line-height:1.45;overflow-wrap:anywhere}.inline-alert svg{flex:0 0 auto;margin-top:1px}.search-field{flex:1 1 320px;max-width:430px;position:relative;display:flex;align-items:center;color:#667085}.search-field svg{position:absolute;left:14px;pointer-events:none}.search-field 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12px;text-decoration:none;font-size:13px;font-weight:900}.row-action:hover{background:var(--primary-soft)}.muted-cell{color:#8a98ad;font-weight:850}.table-footer{min-height:58px;display:flex;align-items:center;justify-content:flex-end;gap:36px;color:var(--ink);font-size:16px;font-weight:750;padding-top:14px}.table-footer span:last-child{min-height:42px;display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:8px;background:#fff;padding:8px 16px;color:#344054}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}@media(max-width:1180px){.main-area{padding:22px}.hero-header{flex-direction:column}.header-side{width:100%;max-width:none;justify-content:flex-start}.header-status{max-width:none;width:100%}.workspace{grid-template-columns:1fr}.controls-panel,.preview-panel{min-height:0}.action-row{margin-top:18px}}@media(max-width:760px){.main-area{padding:18px 14px 28px}h1{font-size:30px}.hero-subtitle{font-size:16px}.stepper{grid-template-columns:1fr;gap:10px}.stepper i{display:none}.step-item{font-size:17px}.panel{padding:16px}.split-title{align-items:stretch;flex-direction:column}.heading-controls{width:100%;margin-left:0;justify-content:stretch;flex-wrap:wrap}.heading-result-actions{flex-wrap:wrap}.heading-search,.result-actions{width:100%;justify-content:space-between}.stats-grid{grid-template-columns:1fr}.metric{border-right:0;border-bottom:1px solid var(--line)}.metric:last-child{border-bottom:0}.file-tile{grid-template-columns:48px minmax(0,1fr)}.status-pill{grid-column:2;justify-self:start}.action-row,.result-actions{flex-direction:column}.action-row>*,.result-actions>*,.ghost-button{width:100%}.search-field{max-width:none}}