:root{--bg: #f4f7fb;--panel: #ffffff;--ink: #1f2d3d;--muted: #6b7a90;--brand: #14539b;--brand-d: #0e3d74;--accent: #e8533f;--line: #e2e8f0;--ok: #1f9d57}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}.app{max-width:920px;margin:0 auto;padding:24px 16px 48px}.hero{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;border-radius:16px;padding:26px 28px;box-shadow:0 8px 24px #14539b40}.hero h1{margin:0 0 4px;font-size:26px}.hero .sub{margin:0;opacity:.9;font-size:14px}.help{margin-top:14px;background:#ffffff1f;border-radius:10px;padding:8px 14px}.help summary{cursor:pointer;font-weight:600}.help ol{margin:8px 0 0;padding-left:20px}.help ul{margin:4px 0}.help .note{font-size:13px;opacity:.92}.help em{color:#ffd9d2;font-style:normal;font-weight:600}main{margin-top:22px;display:flex;flex-direction:column;gap:18px}.dropzone{border:2px dashed var(--line);background:var(--panel);border-radius:14px;padding:30px;text-align:center;transition:border-color .15s,background .15s}.dropzone.drag{border-color:var(--brand);background:#eef4fc}.dz-icon{font-size:34px;color:var(--brand)}.dz-inner p{margin:6px 0}.hint{color:var(--muted);font-size:13px}.link{background:none;border:none;color:var(--brand);cursor:pointer;font-size:inherit;text-decoration:underline;padding:0}.files h2,.options,.log-wrap h2,.results h2{font-size:17px}.count{background:var(--brand);color:#fff;border-radius:999px;padding:1px 9px;font-size:13px}.file-list{list-style:none;padding:0;margin:8px 0 0}.file-list li{display:flex;align-items:center;justify-content:space-between;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 12px;margin-bottom:8px}.file-list .name{font-size:14px;word-break:break-all}.file-list .del{background:none;border:none;color:var(--accent);cursor:pointer;font-size:13px}.options{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px}.options label{font-size:14px}select{padding:6px 8px;border-radius:8px;border:1px solid var(--line);font-size:14px}button{font-family:inherit}.primary{background:var(--brand);color:#fff;border:none;border-radius:10px;padding:10px 18px;font-size:15px;cursor:pointer}.primary:disabled{background:#a9bdd6;cursor:not-allowed}.ghost{background:none;border:1px solid var(--line);border-radius:10px;padding:10px 16px;cursor:pointer;color:var(--muted)}.ghost:disabled{opacity:.5;cursor:not-allowed}.log-wrap{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 16px}.log{background:#0e1726;color:#cfe3ff;border-radius:8px;padding:12px;max-height:240px;overflow:auto;font-size:13px;margin:0;white-space:pre-wrap}.results{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px}.actions{margin:6px 0 12px}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:13px}th,td{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}th{background:#eef4fc;position:sticky;top:0}tr:nth-child(2n) td{background:#fafcff}.download-list{list-style:none;padding:0;margin:12px 0 0}.download-list li{margin-bottom:6px}.download-list a{color:var(--brand)}footer{margin-top:26px;text-align:center;color:var(--muted);font-size:12px}