:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --muted: #6b7280;
  --bg: #f3f4f6;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --text2: #4b5563;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }

/* 顶部导航 */
.topbar {
  background: #1f2937;
  color: #fff;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .brand { font-size: 17px; font-weight: 600; }
.topbar nav { display: flex; gap: 6px; flex: 1; align-items: center; }
.topbar nav a {
  color: #d1d5db;
  padding: 8px 14px;
  border-radius: 6px;
  transition: background .15s;
}
.topbar nav a:hover { background: rgba(255,255,255,.08); color:#fff; }
.topbar nav a.active { background: var(--primary); color:#fff; }
.topbar .user { font-size: 13px; color:#9ca3af; }
.topbar .logout {
  background: transparent; border: 1px solid #4b5563; color:#d1d5db;
  padding: 6px 12px; border-radius:6px; cursor:pointer; font-size:13px;
}
.topbar .logout:hover { background:#374151; }

/* 主体容器 */
.container { max-width: 1100px; margin: 20px auto; padding: 0 20px; }

/* 卡片 */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.card h2 { font-size: 16px; margin-bottom: 12px; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary); color: #fff; border: none;
  padding: 8px 14px; border-radius: 6px; cursor: pointer;
  font-size: 14px; transition: background .15s;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #fff; color: var(--text2); border: 1px solid var(--border); }
.btn.secondary:hover { background: #f9fafb; }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #b91c1c; }
.btn.success { background: var(--success); }
.btn.success:hover { background: #15803d; }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* 表单 */
label { display: block; font-size: 13px; color: var(--text2); margin: 12px 0 4px; }
input[type=text], input[type=password], input[type=datetime-local],
input[type=file], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 6px; font-size: 14px; background:#fff; color:var(--text);
}
textarea { resize: vertical; min-height: 70px; }
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(37,99,235,.25); border-color: var(--primary); }
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-row > div { flex: 1; min-width: 200px; }
.form-actions { margin-top: 18px; display: flex; gap: 10px; }
.checkbox-inline { display: inline-flex; align-items: center; gap: 6px; margin-right: 14px; font-weight: normal; }
.checkbox-inline input { width: auto; }

/* 表格 */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th { text-align: left; padding: 10px 12px; background: #f9fafb; color:var(--text2); font-weight: 600; border-bottom: 1px solid var(--border); }
tbody td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:hover { background: #fafbfc; }

/* 标签 */
.tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.tag.gray { background:#e5e7eb; color:#374151; }
.tag.green { background:#dcfce7; color:#15803d; }
.tag.red { background:#fee2e2; color:#b91c1c; }
.tag.orange { background:#ffedd5; color:#c2410c; }
.tag.blue { background:#dbeafe; color:#1d4ed8; }
.tag.yellow { background:#fef9c3; color:#a16207; }

/* 统计条 */
.sumline { display:flex; gap:24px; flex-wrap:wrap; margin: 6px 0 0; font-size:13px; color:var(--text2); }
.sumline b { font-size:15px; }

/* 卡片网格（看板） */
.board-group { border:1px solid var(--border); border-radius:10px; background:var(--card); margin-bottom:18px; overflow:hidden; }
.board-group-header { padding:14px 18px; background:#f8fafc; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:14px; flex-wrap:wrap; }
.board-group-header h3 { font-size:15px; flex:1; }
.stage-box { padding:14px 18px; border-top:1px solid var(--border); }
.stage-box-title { display:flex; align-items:center; gap:12px; margin-bottom:12px; font-size:14px; font-weight:600; }
.stage-box-title .muted { font-weight:400; color:var(--muted); font-size:13px; }
.filter-bar { margin: 10px 0 16px; display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.filter-bar .btn { background:#fff; color:var(--text2); border:1px solid var(--border); }
.filter-bar .btn.active { background:var(--primary); color:#fff; border-color:var(--primary); }

/* 企业状态卡片 */
.company-cards { display:grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap:12px; }
.c-card { border:1px solid var(--border); border-radius:8px; padding:12px; background:#fff; }
.c-card .name { font-weight:600; margin-bottom:6px; display:flex; justify-content:space-between; align-items:center; gap:6px; }
.c-card .meta { font-size:12px; color:var(--muted); margin:4px 0; }
.c-card .ops { margin-top:10px; display:flex; gap:6px; flex-wrap:wrap; }

/* 登录页 */
.login-wrap { max-width: 400px; margin: 80px auto; }
.login-wrap .card { padding: 28px; }
.login-wrap h1 { font-size:18px; text-align:center; margin-bottom:6px; }
.login-wrap .sub { text-align:center; color:var(--muted); font-size:13px; margin-bottom:18px; }
.switch-links { text-align:center; margin-top:14px; font-size:13px; }

/* 模态框 */
.modal-mask {
  position: fixed; inset:0; background:rgba(0,0,0,.45);
  display:flex; align-items:flex-start; justify-content:center;
  padding: 60px 16px; z-index:100; overflow:auto;
}
.modal { background:#fff; border-radius:10px; max-width:640px; width:100%; padding:20px; box-shadow:0 10px 40px rgba(0,0,0,.25); }
.modal.wide { max-width: 860px; }
.modal h2 { font-size:16px; margin-bottom:14px; }
.modal-actions { margin-top:18px; display:flex; gap:10px; justify-content:flex-end; }
.close-x { float:right; cursor:pointer; color:var(--muted); font-size:20px; line-height:1; background:none; border:none; }

/* 提示 */
.toast-wrap { position:fixed; top:68px; right:20px; z-index:200; display:flex; flex-direction:column; gap:10px; }
.toast { background:#111827; color:#fff; padding:11px 16px; border-radius:8px; font-size:14px; box-shadow:0 4px 12px rgba(0,0,0,.25); animation: slidein .2s ease; max-width:340px; }
.toast.ok { background: var(--success); }
.toast.err { background: var(--danger); }
.toast.info { background: var(--primary); }
@keyframes slidein { from { opacity:0; transform: translateX(20px);} to {opacity:1; transform:none;} }

/* 文件列表 */
.file-list { margin:8px 0; }
.file-item { display:flex; align-items:center; gap:10px; padding:8px 10px; border:1px solid var(--border); border-radius:6px; margin-bottom:6px; font-size:13px; }
.file-item .fname { flex:1; word-break:break-all; }
.file-list-multi { display:flex; flex-direction:column; gap:6px; }
.file-thumb { background:#f3f4f6; border:1px solid var(--border); border-radius:6px; padding:8px 10px; font-size:13px; display:flex; align-items:center; gap:8px; }
.file-thumb .fname { flex:1; word-break:break-all; }

.empty { text-align:center; color:var(--muted); padding:40px 0; font-size:14px; }

/* 企业端「去提交」高亮 */
.callout { background:#eff6ff; border:1px solid #bfdbfe; border-radius:8px; padding:12px 14px; font-size:13px; color:#1e3a8a; margin-bottom:12px; }

select { cursor:pointer; }
.right { text-align:right; }
.muted { color:var(--muted); }
.small { font-size:12px; }