:root{
  --bg:#f4f6fb; --panel:#ffffff; --ink:#1f2430; --muted:#8a92a6;
  --line:#e7eaf2; --primary:#3b5bdb; --primary-d:#2f49b0; --primary-soft:#eef2ff;
  --ok:#2f9e6f; --warn:#e8a33d; --danger:#d9534f; --radius:14px;
  --shadow:0 8px 30px rgba(28,40,80,.08);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",system-ui,Segoe UI,Roboto,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;-webkit-font-smoothing:antialiased}

/* 登录 */
.login-wrap{height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#3b5bdb,#6f8bff 60%,#9db4ff)}
.login-card{width:360px;background:#fff;border-radius:20px;padding:38px 34px;box-shadow:var(--shadow);text-align:center}
.login-logo{font-size:46px}
.login-card h1{margin:10px 0 4px;font-size:22px;letter-spacing:.5px}
.login-sub{color:var(--muted);margin:0 0 22px;font-size:13px}
.login-card input{width:100%;padding:12px 14px;margin-bottom:14px;border:1px solid var(--line);
  border-radius:10px;font-size:14px;outline:none;transition:.2s}
.login-card input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.login-card button{width:100%;padding:12px;border:none;border-radius:10px;background:var(--primary);
  color:#fff;font-size:15px;cursor:pointer;transition:.2s;letter-spacing:2px}
.login-card button:hover{background:var(--primary-d)}
.login-err{color:var(--danger);font-size:12px;min-height:16px;margin-top:8px}

/* 框架 */
.app{display:flex;height:100vh}
.sidebar{width:230px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column}
.brand{padding:22px 22px 16px;font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.5px}
.sidebar nav{display:flex;flex-direction:column;padding:6px 12px;gap:2px;flex:1}
.sidebar nav a{padding:11px 14px;border-radius:10px;color:#4a5167;cursor:pointer;font-size:14px;transition:.15s}
.sidebar nav a:hover{background:var(--primary-soft);color:var(--primary-d)}
.sidebar nav a.active{background:var(--primary);color:#fff;font-weight:600}
.side-foot{padding:14px 18px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.side-foot span{color:var(--muted);font-size:12px}
.side-foot button{background:none;border:1px solid var(--line);border-radius:8px;padding:5px 10px;cursor:pointer;color:#4a5167}
.side-foot button:hover{border-color:var(--danger);color:var(--danger)}

.content{flex:1;display:flex;flex-direction:column;overflow:hidden}
.topbar{padding:20px 30px 14px;border-bottom:1px solid var(--line);background:#fff}
.topbar h2{margin:0;font-size:20px}
.page-desc{color:var(--muted);font-size:13px;margin-top:4px}
.page-body{padding:24px 30px;overflow:auto;flex:1}

/* 卡片/统计 */
.grid{display:grid;gap:16px}
.cards{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.card .num{font-size:30px;font-weight:700;color:var(--primary)}
.card .lbl{color:var(--muted);font-size:13px;margin-top:4px}

/* 表格 */
.toolbar{display:flex;gap:10px;margin-bottom:14px;align-items:center;flex-wrap:wrap}
.btn{background:var(--primary);color:#fff;border:none;border-radius:9px;padding:9px 16px;cursor:pointer;font-size:13px;transition:.15s}
.btn:hover{background:var(--primary-d)}
.btn.ghost{background:#fff;border:1px solid var(--line);color:#4a5167}
.btn.ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.danger{background:#fff;border:1px solid var(--danger);color:var(--danger)}
.btn.danger:hover{background:var(--danger);color:#fff}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:13px}
th{background:#fafbff;color:#6b7290;font-weight:600;font-size:12px}
tr:hover td{background:#fafbff}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;background:var(--primary-soft);color:var(--primary-d)}
.tag.gray{background:#eef0f5;color:#6b7290}
.tag.green{background:#e7f6ee;color:var(--ok)}
.tag.red{background:#fdeaea;color:var(--danger)}
.muted{color:var(--muted)}
.empty{padding:40px;text-align:center;color:var(--muted)}
.nowrap{white-space:nowrap}
.code-cell{max-width:320px;white-space:pre-wrap;word-break:break-all;font-family:ui-monospace,Consolas,monospace;font-size:12px;color:#33405e;background:#f7f9ff;padding:8px 10px;border-radius:8px}
.post-row{background:#fff7ed}
.post-row td:first-child{border-left:3px solid var(--warn)}
.sel{padding:7px 10px;border:1px solid var(--line);border-radius:9px;font-size:13px;background:#fff;outline:none}

/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(20,28,52,.42);display:flex;align-items:center;justify-content:center;z-index:50}
.modal{width:520px;max-width:92vw;max-height:88vh;overflow:auto;background:#fff;border-radius:16px;padding:24px 26px;box-shadow:var(--shadow)}
.modal h3{margin:0 0 16px;font-size:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:#5a6178;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:13px;outline:none;font-family:inherit}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.field textarea{resize:vertical;min-height:80px}
.field .hint{color:var(--muted);font-size:12px;margin-top:4px}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.code-box{background:#0f1730;color:#cfe0ff;padding:14px;border-radius:10px;font-family:ui-monospace,Consolas,monospace;font-size:12px;white-space:pre-wrap;word-break:break-all}
.copy-btn{margin-top:8px}

/* toast */
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);background:#1f2430;color:#fff;
  padding:11px 20px;border-radius:10px;font-size:13px;opacity:0;pointer-events:none;transition:.25s;z-index:99}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.ok{background:#2f9e6f}.toast.err{background:#d9534f}