:root{font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:#172033;background:#f3f6fb;font-synthesis:none;--blue: #2867f0;--blue-dark: #174fc9;--line: #dfe5ef;--muted: #677289;--card: #ffffff;--danger: #c73544;--success: #16865b}*{box-sizing:border-box}body{margin:0;min-width:320px;background:linear-gradient(180deg,#eef4ff 0,#f6f8fc 240px)}button,select,input{font:inherit}#app{width:min(100%,920px);margin:0 auto;padding:28px 20px 48px}.hero{display:flex;align-items:center;gap:16px;padding:8px 2px 26px}.hero h1{margin:3px 0 4px;font-size:clamp(25px,5vw,36px);letter-spacing:-.04em}.hero p{margin:0;color:var(--muted)}.brand-mark{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;color:#fff;font-size:24px;font-weight:800;background:linear-gradient(135deg,#3478ff,#6d4aff);box-shadow:0 12px 26px #376ff33d}.eyebrow{color:var(--blue);font-size:12px;font-weight:750;letter-spacing:.08em;text-transform:uppercase}.card{background:var(--card);border:1px solid #e5eaf2;border-radius:18px;padding:22px;margin-bottom:16px;box-shadow:0 7px 24px #1e30520e}.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:17px}.section-head h2{margin:3px 0 0;font-size:19px}.pill{white-space:nowrap;border-radius:999px;background:#edf3ff;color:var(--blue-dark);padding:6px 10px;font-size:12px;font-weight:700}.pill.success{background:#e9f8f1;color:var(--success)}.pill.danger{background:#fff0f1;color:var(--danger)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}label>span{display:block;margin-bottom:7px;color:#4a556c;font-size:13px;font-weight:650}select{width:100%;min-height:42px;border:1px solid #cfd7e5;border-radius:10px;padding:0 36px 0 12px;color:#1f2937;background:#fff}select:focus,button:focus-visible,.drop-zone:focus-within{outline:3px solid #2867f02e;border-color:var(--blue)}.rule-note{margin:14px 0 0;border-left:3px solid #80a5ff;padding-left:11px;color:var(--muted);font-size:13px;line-height:1.65}.drop-zone{min-height:150px;display:grid;place-items:center;align-content:center;gap:5px;border:1.5px dashed #aebbd0;border-radius:14px;background:#f9fbff;cursor:pointer;text-align:center;transition:.15s ease}.drop-zone:hover{border-color:var(--blue);background:#f2f6ff}.drop-zone input{position:absolute;width:1px;height:1px;opacity:0}.drop-zone small{color:var(--muted)}.drop-zone.disabled{opacity:.55;cursor:wait}.upload-icon{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;color:var(--blue);background:#e8f0ff;font-size:22px}.file-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:14px}.file-summary div{min-width:0;padding:10px;border-radius:10px;background:#f5f7fb}.file-summary span,.file-summary strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-summary span{color:var(--muted);font-size:11px}.file-summary strong{margin-top:3px;font-size:13px}.warning-list{margin:12px 0 0;padding-left:20px;color:#8a6417;font-size:13px}.muted{margin-top:-8px;color:var(--muted);font-size:13px}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:10px 12px;border-bottom:1px solid #e9edf4;text-align:left;vertical-align:middle}th{background:#f6f8fc;color:#4d5970;font-size:12px}tbody tr:last-child td{border-bottom:0}code{color:#34425d;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.mapping-card select{min-width:180px;min-height:36px}.notice{border:1px solid #cbd8f3;border-radius:12px;padding:12px 14px;margin-bottom:16px;color:#294e96;background:#eef4ff;font-size:13px;line-height:1.55}.notice.success{border-color:#bfe7d5;color:#116947;background:#ecf9f3}.notice.error{border-color:#efc4c8;color:#992b38;background:#fff2f3}.notice ul{margin:6px 0 0;padding-left:20px}.action-bar{position:sticky;bottom:10px;z-index:5;display:flex;justify-content:flex-end;gap:10px;margin:18px 0;padding:12px;border:1px solid #dce3ee;border-radius:14px;background:#ffffffed;backdrop-filter:blur(12px);box-shadow:0 10px 30px #192a4821}button{min-height:42px;border-radius:10px;padding:0 17px;border:1px solid transparent;font-weight:720;cursor:pointer}button.primary{color:#fff;background:var(--blue)}button.primary:hover{background:var(--blue-dark)}button.secondary{color:#29364f;border-color:#cbd4e2;background:#fff}button:disabled{opacity:.45;cursor:not-allowed}.metrics{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.metric{padding:14px;border-radius:12px;background:#f4f6fa}.metric span{display:block;color:var(--muted);font-size:12px}.metric strong{display:block;margin-top:5px;font-size:24px}.metric.add{background:#eaf3ff;color:#1559c8}.metric.update{background:#fff6e6;color:#a65d00}.metric.error{background:#fff0f1;color:var(--danger)}.error-panel{margin-top:15px;color:var(--danger)}.error-panel p{font-size:13px}footer{padding-top:13px;color:#7a8498;text-align:center;font-size:12px}@media(max-width:650px){#app{padding:18px 12px 38px}.card{padding:17px;border-radius:15px}.form-grid,.file-summary{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(2,1fr)}.action-bar{flex-direction:column}.action-bar button{width:100%}}