:root{
  --red:#DD2526;
  --red-dark:#b81c1d;
  --ink:#1c1f23;
  --ink-2:#4a5058;
  --ink-3:#828a94;
  --line:#e6e8ec;
  --bg:#f5f6f8;
  --card:#ffffff;
  --ok:#1a9c62;
  --warn:#d98b0a;
  --info:#2b6cb0;
  --radius:10px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
.hidden{display:none !important}
a{color:var(--red);text-decoration:none}

/* 登录 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:linear-gradient(160deg,#20242b 0%,#2e333c 55%,#3a2426 100%);}
.login-card{width:100%;max-width:400px;background:#fff;border-radius:14px;padding:28px 26px;box-shadow:0 20px 50px rgba(0,0,0,.28)}
.login-brand{text-align:center;margin-bottom:20px}
.login-logo{display:inline-flex;width:52px;height:52px;border-radius:12px;background:var(--red);color:#fff;
  align-items:center;justify-content:center;font-size:20px;font-weight:700;letter-spacing:1px}
.login-sub{margin-top:8px;color:var(--ink-3);font-size:13px}
.tabs{display:flex;gap:4px;background:#f0f1f4;border-radius:8px;padding:3px;margin-bottom:16px}
.tab{flex:1;border:0;background:transparent;padding:8px 4px;border-radius:6px;cursor:pointer;color:var(--ink-2);font-size:13px}
.tab.active{background:#fff;color:var(--red);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.auth-form{display:flex;flex-direction:column;gap:12px}
.auth-form label{display:flex;flex-direction:column;gap:5px;font-size:13px;color:var(--ink-2)}
.auth-form input{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;outline:none;background:#fff;color:var(--ink)}
.auth-form input:focus{border-color:var(--red)}
.row{display:flex;gap:8px}
.row input{flex:1}
.link-row{text-align:right;font-size:12px}
.hint{font-size:12px;color:var(--ink-3)}
.msg{padding:9px 12px;border-radius:8px;font-size:13px;margin-bottom:12px}
.msg.err{background:#fdecec;color:#a52121}
.msg.ok{background:#e8f6ee;color:#17734a}

/* 按钮 */
.btn{border:1px solid var(--line);background:#fff;color:var(--ink);padding:8px 14px;border-radius:8px;cursor:pointer;font-size:13px;transition:.15s}
.btn:hover{border-color:#c9ccd3}
.btn.primary{background:var(--red);border-color:var(--red);color:#fff}
.btn.primary:hover{background:var(--red-dark);border-color:var(--red-dark)}
.btn.ghost{background:#f2f3f6}
.btn.block{width:100%;padding:11px;font-size:15px;font-weight:600}
.btn.tiny{padding:5px 10px;font-size:12px}
.btn.danger{color:#a52121;border-color:#f0c9c9}
.btn:disabled{opacity:.55;cursor:not-allowed}

/* 顶栏 */
.topbar{display:flex;align-items:center;gap:20px;background:#fff;border-bottom:1px solid var(--line);
  padding:0 20px;height:56px;position:sticky;top:0;z-index:30}
.brand{display:flex;align-items:center;gap:8px}
.brand-mark{background:var(--red);color:#fff;width:30px;height:30px;border-radius:7px;display:flex;align-items:center;
  justify-content:center;font-size:13px;font-weight:700}
.brand-text{font-weight:700;letter-spacing:.5px}
.nav{display:flex;gap:4px;flex:1}
.nav-item{padding:7px 14px;border-radius:8px;color:var(--ink-2);font-size:14px}
.nav-item:hover{background:#f2f3f6}
.nav-item.active{background:#fdecec;color:var(--red);font-weight:600}
.user-box{display:flex;align-items:center;gap:10px}
.user-email{font-size:12px;color:var(--ink-3);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 页面 */
.page{max-width:1180px;margin:0 auto;padding:20px}
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;gap:12px;flex-wrap:wrap}
.page-title{font-size:19px;font-weight:700;margin:0}
.page-sub{color:var(--ink-3);font-size:12px;margin-top:2px}
.actions{display:flex;gap:8px;flex-wrap:wrap}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:16px}

/* 统计 */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.stat .k{font-size:12px;color:var(--ink-3)}
.stat .v{font-size:20px;font-weight:700;margin-top:4px}
.stat .v.red{color:var(--red)}

/* 筛选 */
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.filters input,.filters select{padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:13px;background:#fff;color:var(--ink);outline:none}
.filters input:focus,.filters select:focus{border-color:var(--red)}
.filters input.search{flex:1;min-width:180px}

/* 表格 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{background:#fafbfc;font-weight:600;color:var(--ink-2);font-size:12px}
tbody tr:hover{background:#fafbfc}
tbody tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.empty{padding:40px;text-align:center;color:var(--ink-3)}
.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;background:#f0f1f4;color:var(--ink-2)}
.tag.draft{background:#f0f1f4}
.tag.confirmed{background:#e6f0fb;color:#2b6cb0}
.tag.done{background:#e8f6ee;color:#17734a}
.tag.cancelled{background:#fdecec;color:#a52121}
.link{cursor:pointer;color:var(--red)}

/* 表单 */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:12px;color:var(--ink-2)}
.field input,.field select,.field textarea{padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:14px;background:#fff;color:var(--ink);outline:none;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--red)}
.field textarea{min-height:60px;resize:vertical}
.section-title{font-size:14px;font-weight:700;margin:0 0 12px;padding-left:9px;border-left:3px solid var(--red)}

/* 明细编辑表 */
.items-table input{width:100%;padding:6px 8px;border:1px solid transparent;border-radius:6px;background:transparent;font-size:13px;color:var(--ink)}
.items-table input:hover{border-color:var(--line)}
.items-table input:focus{border-color:var(--red);background:#fff;outline:none}
.items-table td{padding:4px 6px}
.items-table th{padding:8px 6px}
.items-table input.num{text-align:right}

/* 汇总 */
.totals{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-top:14px}
.total-box{background:#fafbfc;border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.total-box .k{font-size:12px;color:var(--ink-3)}
.total-box .v{font-size:18px;font-weight:700;margin-top:2px}
.total-box .v.red{color:var(--red)}
.capital{margin-top:10px;font-size:13px;color:var(--ink-2)}

/* 打印单 */
.print-sheet{background:#fff;padding:26px 30px;border:1px solid var(--line);border-radius:var(--radius)}
.print-head{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:2px solid var(--ink);padding-bottom:10px;margin-bottom:12px}
.print-title{font-size:20px;font-weight:700}
.print-meta{font-size:12px;color:var(--ink-2);text-align:right}
.print-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:6px 16px;font-size:13px;margin-bottom:12px}
.print-table{width:100%;border-collapse:collapse;font-size:12.5px}
.print-table th,.print-table td{border:1px solid #333;padding:6px 8px}
.print-table th{background:#f2f3f6}
.print-foot{margin-top:14px;font-size:12px;color:var(--ink-2);line-height:1.7}
.print-sign{display:flex;justify-content:space-between;margin-top:26px;font-size:13px}
.rule-list{margin:6px 0 0;padding-left:18px;font-size:12px;color:var(--ink-2)}
.rule-list li{margin-bottom:2px}

.toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%);background:rgba(28,31,35,.94);color:#fff;
  padding:10px 20px;border-radius:8px;font-size:13px;z-index:200;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.loading{position:fixed;inset:0;background:rgba(255,255,255,.6);display:flex;flex-direction:column;gap:12px;
  align-items:center;justify-content:center;z-index:300;font-size:13px;color:var(--ink-2)}
.spinner{width:26px;height:26px;border:3px solid #e6e8ec;border-top-color:var(--red);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.modal{position:fixed;inset:0;background:rgba(20,22,26,.45);display:flex;align-items:center;justify-content:center;z-index:150;padding:20px}
.modal-card{background:#fff;border-radius:12px;padding:20px;width:100%;max-width:480px;max-height:86vh;overflow:auto}
.modal-title{font-size:16px;font-weight:700;margin:0 0 14px}
.modal-foot{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}

@media (max-width:640px){
  .page{padding:14px}
  .topbar{gap:10px;padding:0 12px}
  .brand-text{display:none}
  .user-email{display:none}
}
@media print{
  .topbar,.nav,.actions,.page-head,.no-print,.toast,.loading{display:none !important}
  body{background:#fff}
  .page{max-width:none;padding:0}
  .print-sheet{border:0;padding:0}
}