:root{--bg: #f3f6f4;--surface: #ffffff;--ink: #1c2b24;--muted: #5d6f66;--line: #d7e2dc;--brand: #1f7a4d;--brand-dark: #165c3a;--brand-soft: #e7f5ee;--warn: #b45309;--warn-soft: #fff4e5;--danger: #b42318;--danger-soft: #fdecea;--over: #9a3412;--over-soft: #ffedd5;--shadow: 0 10px 30px rgba(28, 43, 36, .08);--radius: 16px}*{box-sizing:border-box}html,body{margin:0;padding:0;background:radial-gradient(1200px 500px at 10% -10%,#d9efe3 0%,transparent 55%),radial-gradient(900px 420px at 100% 0%,#e8f0ea 0%,transparent 50%),var(--bg);color:var(--ink);font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif}body{min-height:100vh}#app{max-width:1180px;margin:0 auto;padding:32px 20px 64px}.hero{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin-bottom:24px}.hero h1{margin:0 0 8px;font-size:32px;letter-spacing:.02em}.hero p{margin:0;color:var(--muted);line-height:1.6;max-width:640px}.badge{display:inline-flex;align-items:center;gap:6px;background:var(--brand-soft);color:var(--brand-dark);border-radius:999px;padding:6px 12px;font-size:12px;font-weight:600;margin-bottom:10px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:16px}.panel h2{margin:0 0 14px;font-size:18px}.import-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}.dropzone{border:1.5px dashed #b7c9bf;border-radius:12px;min-height:180px;padding:20px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:var(--muted);background:#fbfefc;cursor:pointer;transition:border-color .15s,background .15s}.dropzone.dragover,.dropzone:hover{border-color:var(--brand);background:var(--brand-soft)}.dropzone strong{color:var(--ink);font-size:16px;margin-bottom:6px}textarea{width:100%;min-height:180px;resize:vertical;border:1px solid var(--line);border-radius:12px;padding:12px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;color:var(--ink);background:#fcfdfc}.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}button,.file-btn,a.btn-primary,a.btn-secondary,a.btn-ghost{border:0;border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark)}.btn-secondary{background:#eef3f0;color:var(--ink)}.btn-ghost{background:transparent;color:var(--brand-dark);border:1px solid #cfe3d7}button:disabled{opacity:.45;cursor:not-allowed}.notice{margin-top:12px;padding:10px 12px;border-radius:10px;font-size:13px}.notice.error{background:var(--danger-soft);color:var(--danger)}.notice.info{background:var(--brand-soft);color:var(--brand-dark)}.mapping-grid,.stat-grid,.bucket-grid{display:grid;gap:12px}.mapping-grid{grid-template-columns:repeat(3,1fr)}.stat-grid{grid-template-columns:repeat(4,1fr)}.bucket-grid{grid-template-columns:repeat(3,1fr)}.field-card,.stat-card,.bucket-card{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fbfefc}.field-card label,.stat-card .label,.bucket-card .label{display:block;color:var(--muted);font-size:12px;margin-bottom:8px}.field-card select{width:100%;border:1px solid var(--line);border-radius:8px;padding:8px;background:#fff}.status-ok{color:var(--brand-dark);font-size:12px;margin-top:8px}.status-warn{color:var(--warn);font-size:12px;margin-top:8px}.stat-card .value,.bucket-card .value{font-size:24px;font-weight:700}.bucket-card h3{margin:0 0 10px;font-size:15px}.bucket-meta{display:grid;gap:6px;font-size:13px;color:var(--muted)}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:600;background:#f7faf8}.matrix-table{border-collapse:collapse;min-width:720px;font-size:13px;background:#fff}.matrix-table th,.matrix-table td{border:1px solid #bfbfbf;padding:8px 10px;text-align:center;vertical-align:middle}.matrix-table .origin-head,.matrix-table .origin-cell{text-align:center;background:#f2f2f2;font-weight:600;min-width:160px;color:#222}.matrix-table .range-head{background:#fff2cc;color:#222;font-weight:700}.matrix-table .rate-cell{background:#fff2cc;color:#222;font-weight:600}.matrix-table .empty-task{background:#fff;color:#222;font-weight:400}.matrix-table .rate-over{color:var(--over);font-weight:700}.table-wrap{overflow-x:auto}.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.hidden{display:none}.empty{color:var(--muted);padding:20px 0}@media(max-width:900px){.hero,.import-grid,.mapping-grid,.stat-grid,.bucket-grid{grid-template-columns:1fr;display:grid}.hero{align-items:start}}