:root{
  --bg:#f4f6f9; --card:#fff; --line:#e2e8f0; --text:#16202c; --muted:#67768a;
  --primary:#1f6feb; --primary-dark:#1657bd; --danger:#c0392b; --danger-soft:#fdeceb;
  --warn:#a9700a; --warn-soft:#fdf5e3; --ok:#17794a; --ok-soft:#e9f7ef;
  --radius:12px; --shadow:0 1px 2px rgba(16,32,53,.06),0 4px 14px rgba(16,32,53,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--text); font-size:16px; line-height:1.55;
  -webkit-text-size-adjust:100%; padding-bottom:32px;
}
a{color:var(--primary); text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 8px; line-height:1.3}
h1{font-size:22px}
h2{font-size:19px}
h3{font-size:16px}
p{margin:0 0 10px}
.muted{color:var(--muted); font-size:14px}
.small{font-size:13px}
.nowrap{white-space:nowrap}
.right{text-align:right}
.center{text-align:center}
.mono{font-variant-numeric:tabular-nums}

/* ---------- 顶栏 ---------- */
.topbar{background:#fff; border-bottom:1px solid var(--line); position:sticky; top:0; z-index:30}
.topbar-inner{max-width:1080px; margin:0 auto; display:flex; align-items:center; gap:10px; padding:10px 14px; flex-wrap:wrap}
.brand{font-weight:700; font-size:17px; color:var(--text)}
.nav{display:flex; gap:6px; flex:1}
.nav a{padding:8px 12px; border-radius:8px; color:var(--muted); font-size:15px}
.nav a.active{background:#eaf1fd; color:var(--primary); font-weight:600}
.who{display:flex; align-items:center; gap:8px; font-size:14px; color:var(--muted)}
.who-name{font-weight:600; color:var(--text)}
.tag{background:#eef2f7; border-radius:999px; padding:2px 9px; font-size:12px}
.nav-toggle{display:none; border:1px solid var(--line); background:#fff; border-radius:8px; padding:7px 12px; font-size:15px}
.inline-form{display:inline; margin:0}
.link{background:none; border:0; color:var(--primary); cursor:pointer; font-size:14px; padding:4px}

/* ---------- 布局 ---------- */
.container{max-width:1080px; margin:0 auto; padding:16px 14px 48px}
.card{background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:16px; box-shadow:var(--shadow); margin-bottom:14px}
.card-head{display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap; margin-bottom:10px}
.row{display:flex; gap:10px; flex-wrap:wrap; align-items:center}
.row-between{display:flex; gap:10px; flex-wrap:wrap; align-items:center; justify-content:space-between}
.grid2{display:grid; grid-template-columns:1fr 1fr; gap:10px}
.grid3{display:grid; grid-template-columns:repeat(3,1fr); gap:10px}
.stack{display:flex; flex-direction:column; gap:10px}

/* ---------- 统计卡 ---------- */
.stats{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-bottom:14px}
.stat{background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:14px; box-shadow:var(--shadow); display:block; color:inherit}
.stat .label{font-size:14px; color:var(--muted)}
.stat .value{font-size:22px; font-weight:700; margin-top:4px; font-variant-numeric:tabular-nums}
.stat .sub{font-size:13px; color:var(--muted)}
.stat.danger{border-color:#f3c9c4; background:var(--danger-soft)}
.stat.danger .value{color:var(--danger)}
.stat.warn{border-color:#f0e0b6; background:var(--warn-soft)}
.stat.warn .value{color:var(--warn)}
.stat.ok .value{color:var(--ok)}

/* ---------- 表格 ---------- */
table{width:100%; border-collapse:collapse}
th,td{text-align:left; padding:10px 8px; border-bottom:1px solid var(--line); font-size:15px; vertical-align:middle}
th{font-size:13px; color:var(--muted); font-weight:600; background:#fafbfd}
tbody tr:last-child td{border-bottom:0}
.num{text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap}

/* ---------- 表单 ---------- */
label{display:block; font-size:14px; color:var(--muted); margin-bottom:10px}
input[type=text],input[type=password],input[type=date],input[type=number],select,textarea{
  display:block; width:100%; margin-top:5px; padding:11px 12px; font-size:16px;
  border:1px solid var(--line); border-radius:10px; background:#fff; color:var(--text);
  font-family:inherit; -webkit-appearance:none; appearance:none;
}
input[type=file]{display:block; margin-top:5px; font-size:14px; width:100%}
select{background-image:none}
textarea{min-height:72px; resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid #cfe0fb; border-color:var(--primary)}
.checkbox{display:flex; align-items:center; gap:8px; font-size:15px; color:var(--text)}
.checkbox input{width:20px; height:20px; margin:0}
.field-note{font-size:13px; color:var(--muted); margin-top:4px}

.btn{
  display:inline-block; padding:11px 16px; border-radius:10px; border:1px solid var(--line);
  background:#fff; color:var(--text); font-size:16px; cursor:pointer; text-align:center;
  font-family:inherit; line-height:1.2; min-height:44px;
}
.btn:hover{text-decoration:none; background:#f7f9fc}
.btn.primary{background:var(--primary); border-color:var(--primary); color:#fff; font-weight:600}
.btn.primary:hover{background:var(--primary-dark)}
.btn.danger{background:var(--danger); border-color:var(--danger); color:#fff}
.btn.ok{background:var(--ok); border-color:var(--ok); color:#fff}
.btn.warn{background:var(--warn); border-color:var(--warn); color:#fff}
.btn.ghost{background:transparent}
.btn.small{padding:7px 12px; font-size:14px; min-height:36px}
.btn.block{display:block; width:100%}
.btn-row{display:flex; gap:10px; flex-wrap:wrap}
.btn-row .btn{flex:1 1 46%}

/* ---------- 标签 ---------- */
.pill{display:inline-block; padding:3px 10px; border-radius:999px; font-size:13px; background:#eef2f7; color:#44556a; white-space:nowrap}
.pill.ok{background:var(--ok-soft); color:var(--ok)}
.pill.warn{background:var(--warn-soft); color:var(--warn)}
.pill.danger{background:var(--danger-soft); color:var(--danger)}
.pill.info{background:#eaf1fd; color:var(--primary)}

/* ---------- 提示 ---------- */
.alert{padding:11px 14px; border-radius:10px; background:var(--warn-soft); border:1px solid #f0e0b6; color:var(--warn); margin-bottom:12px; font-size:15px}
.alert.error{background:var(--danger-soft); border-color:#f3c9c4; color:var(--danger)}
.empty{padding:22px 8px; text-align:center; color:var(--muted); font-size:15px}

/* ---------- 合同详情概要 ---------- */
.summary{display:grid; grid-template-columns:repeat(4,1fr); gap:12px}
.summary .box{background:#fafbfd; border:1px solid var(--line); border-radius:10px; padding:12px}
.summary .box .k{font-size:13px; color:var(--muted)}
.summary .box .v{font-size:19px; font-weight:700; font-variant-numeric:tabular-nums; margin-top:3px}
.progress{height:10px; border-radius:999px; background:#e9eef5; overflow:hidden; margin:10px 0 4px}
.progress > span{display:block; height:100%; background:linear-gradient(90deg,#1f6feb,#39a0ff)}

.milestone{display:flex; justify-content:space-between; gap:10px; padding:11px 0; border-bottom:1px dashed var(--line); align-items:center}
.milestone:last-child{border-bottom:0}
.milestone .m-name{font-weight:600}
.milestone .m-meta{font-size:13px; color:var(--muted)}

.attach-row{display:flex; gap:10px; flex-wrap:wrap; align-items:center; margin-top:6px}
.thumb{width:76px; height:76px; object-fit:cover; border-radius:10px; border:1px solid var(--line); background:#fff}
.thumb-lg{max-width:100%; border-radius:10px; border:1px solid var(--line)}
.report-card{border:1px solid var(--line); border-radius:12px; padding:14px; margin-bottom:12px; background:#fff}
.report-card .top{display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap; align-items:center}
.kv{display:grid; grid-template-columns:96px 1fr; gap:4px 10px; font-size:15px; margin:8px 0}
.kv .k{color:var(--muted); font-size:14px}

/* ---------- 登录 ---------- */
body.guest{display:flex; align-items:center; justify-content:center; min-height:100vh; padding:20px}
.login-wrap{width:100%; max-width:400px}
.login-card{padding:24px}
.login-card h1{font-size:20px; margin-bottom:2px}

/* ---------- 手机适配 ---------- */
@media (max-width:860px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .summary{grid-template-columns:repeat(2,1fr)}
  .grid3{grid-template-columns:1fr}
}
@media (max-width:720px){
  .container{padding:12px 10px 40px}
  .nav{display:none; width:100%; flex-direction:column; gap:2px; margin-top:6px}
  .nav.open{display:flex}
  .nav a{padding:12px 12px; font-size:16px}
  .nav-toggle{display:inline-block; margin-left:auto}
  .who{width:100%; justify-content:space-between}
  .grid2{grid-template-columns:1fr}
  table.responsive thead{display:none}
  table.responsive tr{display:block; border:1px solid var(--line); border-radius:12px; padding:10px 12px; margin-bottom:10px; background:#fff}
  table.responsive td{display:flex; justify-content:space-between; gap:12px; border-bottom:1px dashed var(--line); padding:7px 0; font-size:15px}
  table.responsive td:last-child{border-bottom:0}
  table.responsive td::before{content:attr(data-label); color:var(--muted); font-size:14px; flex:0 0 auto}
  table.responsive td.num{text-align:right}
  .btn-row .btn{flex:1 1 100%}
  .kv{grid-template-columns:84px 1fr}
}
@media (max-width:420px){
  .stats{grid-template-columns:1fr 1fr}
  .stat .value{font-size:19px}
}