:root{
  --primary:#0d6efd; --primary-d:#0b5ed7; --cyan:#0dcaf0;
  --bg:#f4f6fa; --panel:#ffffff; --ink:#1f2933; --muted:#7b8794;
  --line:#e3e8ef; --dark:#1b2733; --ok:#198754; --bad:#dc3545; --warn:#ffc107;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Segoe UI","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}

/* 顶部栏 */
.topbar{height:54px;background:linear-gradient(90deg,var(--dark),#15212e);color:#fff;
  display:flex;align-items:center;justify-content:space-between;padding:0 18px;position:sticky;top:0;z-index:50}
.topbar .brand{font-weight:700;font-size:17px;letter-spacing:.5px;color:#fff}
.topbar .brand::before{content:"◆";color:var(--cyan);margin-right:8px}
.top-right{display:flex;align-items:center;gap:14px}
.top-user{color:#cdd6e0;font-size:13px}
.top-link{color:#9fb3c8;font-size:13px}
.top-link:hover{color:#fff}
.top-msg{position:relative;color:#cdd6e0;font-size:18px}
.msg-dot{position:absolute;top:-6px;right:-10px;background:var(--bad);color:#fff;border-radius:10px;
  font-size:11px;padding:0 5px;min-width:16px;text-align:center;line-height:16px;font-style:normal}

/* 布局 */
.layout{display:flex;min-height:calc(100vh - 54px)}
.sidebar{width:220px;min-width:220px;background:var(--panel);border-right:1px solid var(--line);padding:14px 10px;
  display:flex;flex-direction:column;gap:4px;position:sticky;top:54px;height:calc(100vh - 54px)}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;color:var(--ink);font-size:14px;white-space:nowrap}
.nav-item .nav-ico{width:20px;text-align:center;color:var(--primary);flex-shrink:0}
.nav-item .nav-txt{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-item:hover{background:#eef3ff;text-decoration:none}
.nav-item.active{background:var(--primary);color:#fff}
.nav-item.active .nav-ico{color:#fff}
.content{flex:1;padding:18px}
.container{max-width:1100px;margin:0 auto}
.page-title{font-size:20px;margin:0 0 14px;font-weight:700}

/* 卡片/面板 */
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:16px;
  box-shadow:0 1px 3px rgba(16,24,40,.04)}
.sec-t{font-size:15px;margin:4px 0 12px;border-left:3px solid var(--primary);padding-left:8px}
.toolbar{margin-bottom:10px}
.welcome{background:linear-gradient(90deg,var(--primary),var(--cyan));color:#fff;padding:14px 18px;border-radius:12px;margin-bottom:16px;font-size:15px}

/* 按钮 */
.btn{display:inline-block;padding:8px 16px;background:#eef1f6;color:var(--ink);border:1px solid var(--line);
  border-radius:8px;cursor:pointer;font-size:14px}
.btn:hover{text-decoration:none;background:#e2e7ef}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d)}
.btn-success{background:var(--ok);border-color:var(--ok);color:#fff}
.btn-danger{background:var(--bad);border-color:var(--bad);color:#fff}
.btn-warning{background:var(--warn);border-color:var(--warn);color:#333}
.btn-info{background:var(--cyan);border-color:var(--cyan);color:#083}
.btn-dark{background:var(--dark);border-color:var(--dark);color:#fff}
.btn-sm{padding:5px 12px;font-size:13px}
.btn-ghost{background:transparent}
.btn-block{width:100%;padding:11px;font-size:15px;margin-top:6px}
.link{color:var(--primary);background:none;border:none;padding:0 6px;cursor:pointer;font-size:13px}
.link.danger{color:var(--bad)}

/* 表单 */
.form-row{margin-bottom:14px}
.form-row label{display:block;font-weight:600;margin-bottom:6px;font-size:13px}
.form-row .req{color:var(--bad)}
.form-row input[type=text],.form-row input[type=date],.form-row input[type=number],
.form-row select,.form-row textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:14px;background:#fff;color:var(--ink)}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(13,110,253,.12)}
.form-row.has-err input,.form-row.has-err select{border-color:var(--bad)}
.field-err{color:var(--bad);font-size:12px;margin-top:4px}
.form-actions{margin-top:8px;display:flex;gap:10px}

/* 表格 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px}
.tbl{width:100%;border-collapse:collapse;font-size:13px;background:#fff}
.tbl th,.tbl td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl thead th{background:#f7f9fc;position:sticky;top:0;font-weight:600;color:#46556a;z-index:1}
.tbl tbody tr:hover{background:#fafcff}
.tbl .empty{text-align:center;color:var(--muted);padding:24px}
.log-detail{max-width:320px;white-space:normal;color:#46556a}

/* 状态 Badge */
.badge{display:inline-block;padding:2px 9px;border-radius:11px;font-size:12px;font-weight:600;color:#fff}
.badge-success{background:var(--ok)}
.badge-danger{background:var(--bad)}
.badge-warning{background:#e0a800;color:#fff}
.badge-info{background:#0dcaf0;color:#063}
.badge-secondary{background:#6c757d}
.badge-dark{background:#212529}
.badge-light{background:#e9ecef;color:#495057;border:1px solid #ced4da}

/* 提示 */
.alert{padding:10px 14px;border-radius:8px;margin-bottom:12px;font-size:14px}
.alert-success{background:#e7f6ec;color:#0f5132;border:1px solid #b7e4c7}
.alert-danger{background:#fdeaea;color:#842029;border:1px solid #f5c2c7}
.muted{color:var(--muted)}
.danger-t{color:var(--bad)}

/* 键值表 */
.kv{width:100%;border-collapse:collapse;font-size:14px}
.kv th{background:#f7f9fc;text-align:left;width:120px;padding:9px 12px;border:1px solid var(--line);color:#46556a;font-weight:600}
.kv td{padding:9px 12px;border:1px solid var(--line)}

/* 详情操作 */
.detail-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}
.detail-head h3{margin:0 0 4px}
.detail-head .sub{color:var(--muted);font-size:13px}
.inline-ops{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.req-box{display:flex;align-items:center;gap:8px;border:1px dashed var(--line);padding:8px 10px;border-radius:8px;background:#fafcff}
.req-box label{font-size:13px;margin:0;white-space:nowrap}
.req-box input[type=date],.req-box input[type=text]{padding:6px 9px;border:1px solid var(--line);border-radius:6px}

/* 时间线 */
.timeline{list-style:none;margin:10px 0 0;padding:0 0 0 6px}
.timeline li{padding:8px 0;border-left:2px solid var(--line);margin-left:8px;padding-left:14px;position:relative}
.timeline li::before{content:"";position:absolute;left:-6px;top:14px;width:9px;height:9px;border-radius:50%;background:var(--primary)}
.tl-head{font-size:13px}
.tl-role{display:inline-block;background:#eef3ff;color:var(--primary);border-radius:8px;padding:0 7px;font-size:11px;margin:0 6px}
.tl-time{color:var(--muted);font-size:12px}
.tl-body{margin-top:3px;color:#334}
.follow-form{display:flex;gap:8px;margin-bottom:12px;align-items:flex-start}
.follow-form textarea{flex:1}

/* 消息 */
.msg-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.msg-list{list-style:none;margin:0;padding:0}
.msg-list li{border-bottom:1px solid var(--line)}
.msg-list li.unread{background:#f4f8ff}
.msg-link{display:flex;gap:10px;align-items:center;padding:11px 8px;color:var(--ink)}
.msg-link:hover{text-decoration:none;background:#eef3ff}
.msg-dot-s{width:8px;height:8px;border-radius:50%;background:var(--primary);flex:none;visibility:hidden}
.msg-list li.unread .msg-dot-s{visibility:visible}
.msg-content{flex:1}
.msg-time{color:var(--muted);font-size:12px;white-space:nowrap}

/* 工作台 */
.stat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center}
.stat .num{font-size:26px;font-weight:700;color:var(--primary)}
.stat-warn .num{color:#e0a800}
.stat-ok .num{color:var(--ok)}
.stat-bad .num{color:var(--bad)}
.stat .lbl{font-size:13px;color:var(--muted);margin-top:4px}
.dash-cols{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.mini-list{list-style:none;margin:0 0 8px;padding:0}
.mini-list li{padding:8px 0;border-bottom:1px solid var(--line);display:flex;gap:8px;align-items:center;justify-content:space-between}
.mini-list li .muted{font-size:12px}

/* 筛选条 */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;align-items:center}
.filter-bar input,.filter-bar select{padding:7px 10px;border:1px solid var(--line);border-radius:8px;font-size:13px}
.pager{display:flex;gap:12px;align-items:center;justify-content:center;margin-top:14px}
.pager a{color:var(--primary)}
.pager .disabled{color:var(--muted)}
.pager .pinfo{color:var(--muted);font-size:13px}

/* 登录页 */
.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#0d6efd,#0dcaf0)}
.login-card{background:#fff;border-radius:16px;padding:34px 30px;width:360px;max-width:92vw;box-shadow:0 12px 40px rgba(0,0,0,.18)}
.login-brand{font-weight:700;color:var(--primary);text-align:center;font-size:20px;margin-bottom:6px}
.login-card h2{text-align:center;font-size:18px;margin:0 0 22px;color:#334}
.login-card label{display:block;font-size:13px;font-weight:600;margin:12px 0 5px}
.login-card input{padding:11px 12px;width:100%;border:1px solid var(--line);border-radius:9px;font-size:14px}
.login-tip{text-align:center;color:var(--muted);font-size:12px;margin-top:14px}

/* 安装页 */
.install-box{background:#fff;max-width:520px;margin:8vh auto;padding:30px;border-radius:14px;box-shadow:0 10px 40px rgba(0,0,0,.15)}
.install-box h1{font-size:20px;margin:0 0 4px;color:var(--primary)}
.install-box .warn{color:#b8860b;font-size:12px;margin-top:14px}

/* 移动端底部导航 */
.mbnav{display:none}

/* 响应式：≤768px */
@media (max-width:768px){
  .sidebar{display:none}
  .content{padding:12px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .dash-cols{grid-template-columns:1fr}
  .top-user{display:none}
  .kv th{width:90px}
  .mbnav{display:flex;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);
    z-index:60;justify-content:space-around;padding:6px 0;box-shadow:0 -2px 10px rgba(0,0,0,.06)}
  .mbnav .mb-item{display:flex;flex-direction:column;align-items:center;color:#7b8794;font-size:11px;gap:2px}
  .mbnav .mb-item span{font-size:18px}
  body{padding-bottom:60px}
  .inline-ops .btn{width:100%}
}