:root{--ink:#172b4d;--muted:#65758b;--line:#e4eaf1;--blue:#175cd3;--bg:#f5f7fa;--green:#087443}
    *{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 "Segoe UI","Microsoft YaHei",sans-serif}
    header{background:#fff;border-bottom:1px solid var(--line);padding:17px max(24px,calc((100% - 1440px)/2));display:flex;justify-content:space-between;align-items:center}
    header a{color:var(--ink);font-weight:700;text-decoration:none;font-size:18px}main{max-width:1440px;width:100%;margin:36px auto;padding:0 24px;min-width:0}
    h1{font-size:25px;margin:0 0 18px}h2{font-size:18px;margin:0 0 14px}.muted{color:var(--muted)}
    .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}.card,.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px}
    .toolbar-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}.import-form{display:flex;align-items:center;gap:8px}.import-form input[type=file]{width:240px;max-width:26vw;margin:0;padding:6px;background:#fff;font-size:13px}.import-form button{white-space:nowrap}
    .metric{font-size:23px;font-weight:700;margin-top:7px}.panel{margin-bottom:18px}.row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
    a.button,button{background:var(--blue);color:#fff;border:0;border-radius:6px;padding:9px 14px;font:inherit;text-decoration:none;cursor:pointer;display:inline-block}
    a.secondary,button.secondary{background:#edf3ff;color:var(--blue)}button.danger{background:#fff0f0;color:#b42318;padding:6px 10px}
    table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:15px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted);font-weight:600;font-size:13px;white-space:nowrap}td.num,th.num{text-align:right;white-space:nowrap}
    a.link{color:var(--blue);text-decoration:none;font-weight:600}.formgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}label{display:block;font-weight:600;font-size:14px}input,select,textarea{display:block;width:100%;margin-top:5px;padding:10px;border:1px solid #cfd8e3;border-radius:6px;font:inherit;background:#fff}textarea{min-height:82px;resize:vertical}.wide{grid-column:1/-1}.actions{display:flex;gap:9px;margin-top:16px;align-items:center}.notice{background:#fff3db;border:1px solid #f2d28d;color:#774c00;padding:11px 14px;border-radius:7px;margin-bottom:18px}
    .pill{background:#eaf7f0;color:var(--green);border-radius:20px;padding:3px 9px;font-size:13px}.empty{padding:24px;text-align:center;color:var(--muted)}.inline{display:inline}.project-row-actions{display:flex;align-items:center;gap:14px;white-space:nowrap}.project-row-actions form{margin:0}.detailgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.detailgrid div{padding:14px;background:#f7f9fc;border-radius:8px;min-width:0}.detailgrid b{display:block;margin-top:6px;overflow-wrap:anywhere}
    .account-bar{display:flex;align-items:center;gap:12px}.account-bar form{margin:0}.account-bar button{padding:5px 10px;font-size:13px}.project-layout,.dashboard-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:24px;align-items:start}.project-nav{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;position:sticky;top:18px}.nav-title{font-weight:700;padding:10px 12px 12px}.nav-item,.nav-link{display:block;width:100%;text-align:left;background:transparent;color:var(--ink);padding:12px;border-radius:7px;margin:3px 0;text-decoration:none;font:inherit}.nav-item:hover,.nav-link:hover{background:#f3f6fb}.nav-item.active{background:#eaf1ff;color:var(--blue);font-weight:700}.project-content{min-width:0}.detail-panel{display:none;min-width:0}.detail-panel.active{display:block}.tablewrap{max-width:100%;overflow-x:auto}.detail-panel table{min-width:640px}.business-items-table,.receipts-table{table-layout:fixed;min-width:1050px}.business-items-table th,.business-items-table td,.receipts-table th,.receipts-table td{text-align:left;vertical-align:middle;border-right:1px solid var(--line)}.business-items-table th:last-child,.business-items-table td:last-child,.receipts-table th:last-child,.receipts-table td:last-child{border-right:0}.business-items-table>tbody>tr:nth-child(even),.receipts-table>tbody>tr:nth-child(even){background:#f7f9fc}.business-items-table>tbody>tr:hover,.receipts-table>tbody>tr:hover{background:#eef4ff}.measurement-details{display:inline-block;width:70px;vertical-align:middle}.measurement-details summary{list-style:none;cursor:pointer;color:var(--blue);font:inherit;line-height:1.55;padding:0;white-space:nowrap}.measurement-details summary::-webkit-details-marker{display:none}.measurement-details summary::marker{content:""}.measurement-details[open] summary{margin-bottom:8px}.actions-cell{vertical-align:middle}.item-actions{display:flex;align-items:center;gap:12px;white-space:nowrap;height:34px}.item-actions .link{font-size:inherit;font-weight:400;padding:0 1px;line-height:1.55}.item-actions .danger{background:transparent;color:#b42318;font:inherit;font-weight:400;padding:0 1px;line-height:1.55;border-radius:0}.item-actions .danger:hover{text-decoration:underline}
    @media(max-width:760px){.grid,.detailgrid{grid-template-columns:repeat(2,minmax(0,1fr))}.formgrid{grid-template-columns:1fr}.wide{grid-column:auto}main{margin:18px auto}.project-layout,.dashboard-layout{grid-template-columns:minmax(0,1fr);gap:10px}.project-nav{position:sticky;top:0;z-index:3;display:flex;overflow-x:auto;white-space:nowrap;padding:6px}.nav-title{display:none}.nav-item,.nav-link{width:auto;flex:0 0 auto;padding:8px 12px}}
    @media(max-width:420px){.detailgrid{grid-template-columns:1fr 1fr}.row{align-items:flex-start}h1{font-size:21px}}
.login-panel{max-width:460px;margin:50px auto}.password-label{margin-top:14px}