/* ============================================
   常临水务智慧水务管理系统 - v3.1 科技旗舰版
   设计理念：科技感 · 专业 · 数据驱动
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
:root {
  --primary: #0d9488;
  --primary-light: #14b8a6;
  --primary-dark: #0f766e;
  --primary-glow: rgba(13,148,136,0.15);
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --bg: #f1f5f9;
  --card: #ffffff;
  --card-border: rgba(0,0,0,0.04);
  --text: #0f172a;
  --text-light: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --shadow: 0 1px 2px rgba(0,0,0,0.03);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
  --shadow-hover: 0 4px 12px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.02);
  --radius: 10px;
  --radius-sm: 6px;
  --sidebar-w: 220px;
  --topbar-h: 52px;
  --font: 'Inter','PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}

/* ===== 侧边栏 ===== */
.sidebar{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);background:linear-gradient(170deg,#0f2940,#0a1f32,#071526);z-index:100;overflow-y:auto}
.sidebar::-webkit-scrollbar{width:2px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.03);border-radius:1px}
.sidebar-header{padding:18px 16px 14px;border-bottom:1px solid rgba(255,255,255,0.03)}
.sidebar-header .logo{display:flex;align-items:center;gap:10px}
.sidebar-header .logo-icon{width:34px;height:34px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;box-shadow:0 2px 8px rgba(13,148,136,0.2)}
.sidebar-header .logo-text{font-size:15px;font-weight:700;color:#fff;letter-spacing:0.3px}
.sidebar-header .logo-sub{font-size:9px;color:rgba(255,255,255,0.12);letter-spacing:2px;margin-top:2px}
.sidebar .nav{padding:6px 0}
.sidebar .nav-item{list-style:none}
.sidebar .nav-link,.sidebar .nav-toggle{display:flex;align-items:center;gap:10px;padding:8px 16px;font-size:13px;color:rgba(255,255,255,0.7);text-decoration:none;transition:all 0.15s;border:none;background:none;width:100%;cursor:pointer;border-left:2px solid transparent}
.sidebar .nav-link:hover,.sidebar .nav-toggle:hover{color:rgba(255,255,255,0.9);background:rgba(255,255,255,0.015)}
.sidebar .nav-link.active{color:#2dd4bf;background:rgba(45,212,191,0.04);border-left-color:#2dd4bf}
.sidebar .nav-link .fa,.sidebar .nav-toggle .fa{width:18px;text-align:center;font-size:14px;color:rgba(255,255,255,0.5)}
.sidebar .nav-link.active .fa{color:#2dd4bf}
.sidebar .nav-link:hover .fa{color:rgba(255,255,255,0.75)}
.sub-menu{padding-left:4px}
.sub-menu .nav-link{font-size:12px;padding:5px 16px 5px 26px;border-left:1px solid rgba(255,255,255,0.02);margin-left:10px;color:rgba(255,255,255,0.6)}
.sub-menu .nav-link .fa{font-size:11px;width:14px;margin-right:4px}
.sub-menu.collapsed{display:none}
.nav-toggle .arrow{transition:transform 0.2s;margin-left:auto;font-size:10px;color:rgba(255,255,255,0.15)}
.nav-toggle .arrow.open{transform:rotate(90deg)}

/* ===== 内容区 ===== */
.content{margin-left:var(--sidebar-w);min-height:100vh}
.topbar{height:var(--topbar-h);background:rgba(255,255,255,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 20px;gap:12px;position:sticky;top:0;z-index:50}
.topbar .page-title{font-weight:600;font-size:15px;color:var(--text);display:flex;align-items:center;gap:6px}
.topbar .page-title .fa{color:var(--primary)}
.topbar-center{flex:1;text-align:center;display:flex;align-items:center;justify-content:center;gap:12px}
.topbar-center .sep{color:var(--border);font-size:12px}
.topbar-center .weather{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-light)}
.topbar-center .weather .temp{font-weight:600;color:var(--text)}
.topbar-center .weather .icon{font-size:16px}
.user-avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}
.container-fluid{padding:16px 20px}

/* ===== 卡片 ===== */
.card{background:var(--card);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-card);margin-bottom:12px;transition:box-shadow 0.2s}
.card:hover{box-shadow:var(--shadow-hover)}
.card-header{padding:10px 16px;font-size:13px;font-weight:600;border-bottom:1px solid var(--border);color:var(--text);display:flex;align-items:center;justify-content:space-between}
.card-header .fa{color:var(--primary);margin-right:6px}
.card-body{padding:14px 16px}
.card-body.p-0{padding:0}

/* 统计卡片（深色高对比） */
.stat-card{padding:14px 16px;border-radius:var(--radius);color:#fff;position:relative;overflow:hidden;min-height:82px}
.stat-card-sm{padding:10px 14px;border-radius:var(--radius);color:#fff;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);min-height:60px}
.stat-card::after{content:'';position:absolute;top:-50%;right:-30%;width:80px;height:80px;border-radius:50%;background:rgba(255,255,255,0.03)}
.stat-card h6{font-size:11px;font-weight:500;margin-bottom:4px;letter-spacing:0.3px;color:rgba(255,255,255,0.7)}
.stat-card h2{font-size:24px;font-weight:700;margin:0;letter-spacing:-0.5px;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,0.15)}
.stat-card small{font-size:11px;color:rgba(255,255,255,0.5)}
.bg-primary-grad{background:linear-gradient(135deg,#0d9488,#0f766e)}
.bg-blue-grad{background:linear-gradient(135deg,#1d4ed8,#1e40af)}
.bg-orange-grad{background:linear-gradient(135deg,#b45309,#92400e)}
.bg-purple-grad{background:linear-gradient(135deg,#6d28d9,#5b21b6)}
.bg-red-grad{background:linear-gradient(135deg,#dc2626,#b91c1c)}
.bg-green-grad{background:linear-gradient(135deg,#15803d,#166534)}
.bg-teal-grad{background:linear-gradient(135deg,#0f766e,#115e59)}
.bg-indigo-grad{background:linear-gradient(135deg,#4338ca,#3730a3)}
.bg-rose-grad{background:linear-gradient(135deg,#e11d48,#be123c)}
.bg-slate-grad{background:linear-gradient(135deg,#475569,#334155)}
.bg-cyan-grad{background:linear-gradient(135deg,#0891b2,#0e7490)}
.bg-emerald-grad{background:linear-gradient(135deg,#059669,#047857)}
.bg-violet-grad{background:linear-gradient(135deg,#8b5cf6,#7c3aed)}

/* ===== 表格 ===== */
.table-wrap{overflow-x:auto;scrollbar-width:thin}
.table-wrap::-webkit-scrollbar{height:3px}
.table-wrap::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}
.table{width:100%;border-collapse:collapse;font-size:12px}
.table th{background:#f8fafc;padding:8px 12px;text-align:left;font-weight:600;color:var(--text-light);border-bottom:1px solid var(--border);white-space:nowrap;font-size:11px;text-transform:uppercase;letter-spacing:0.3px}
.table td{padding:7px 12px;border-bottom:1px solid var(--border);color:var(--text)}
.table tbody tr{transition:background 0.1s}
.table tbody tr:hover{background:#f8fafc}
.table-hover tbody tr{cursor:default}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;font-size:12px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;transition:all 0.15s;text-decoration:none;font-family:var(--font);font-weight:500}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-light)}
.btn-outline-primary{color:var(--primary);border-color:var(--primary);background:transparent}
.btn-outline-primary:hover{background:var(--primary);color:#fff}
.btn-outline-danger{color:#ef4444;border-color:#ef4444;background:transparent}
.btn-outline-danger:hover{background:#ef4444;color:#fff}
.btn-sm{padding:3px 8px;font-size:11px}
.btn:disabled{opacity:0.5;cursor:not-allowed}

/* ===== 表单 ===== */
.form-control,.form-select{width:100%;padding:6px 10px;font-size:12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);color:var(--text);font-family:var(--font);transition:border-color 0.15s}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-glow)}
.form-label{display:block;font-size:11px;color:var(--text-light);margin-bottom:3px;font-weight:500}

/* ===== 徽章 ===== */
.badge{display:inline-block;padding:1px 7px;font-size:10px;border-radius:4px;font-weight:500}
.bg-success{background:rgba(34,197,94,0.1);color:#16a34a}
.bg-danger{background:rgba(239,68,68,0.08);color:#dc2626}
.bg-warning{background:rgba(245,158,11,0.1);color:#d97706}
.bg-info{background:rgba(59,130,246,0.08);color:#2563eb}
.bg-secondary{background:rgba(148,163,184,0.08);color:var(--text-light)}
.bg-primary{background:var(--primary-glow);color:var(--primary)}

/* ===== 模态框 ===== */
.modal{display:none;position:fixed;inset:0;z-index:1055;background:rgba(15,23,42,0.2);backdrop-filter:blur(4px);pointer-events:auto}
.modal.show{display:block !important}
.modal-dialog{max-width:500px;margin:80px auto 0;padding:0 16px;position:relative;z-index:1060;pointer-events:auto}
.modal-dialog.modal-lg{max-width:700px}
.modal-content{background:var(--card);border-radius:var(--radius);box-shadow:0 8px 30px rgba(0,0,0,0.06);pointer-events:auto}
.modal-header{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-header .modal-title{font-size:14px;font-weight:600}
.modal-body{padding:14px 18px;pointer-events:auto}
.modal-body input,.modal-body select,.modal-body textarea{pointer-events:auto !important}
.modal-footer{padding:12px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}
.btn-close{background:none;border:none;font-size:18px;cursor:pointer;color:var(--text-light);padding:0;line-height:1}
/* 屏蔽Bootstrap多余遮罩层，防止层叠冲突 */
.modal-backdrop{display:none !important}

/* ===== 栅格 ===== */
.row{display:flex;flex-wrap:wrap;margin:0 -8px}
.row.g-3{margin:0 -8px}.row.g-3>[class*="col-"]{padding:0 8px}
.row.g-4{margin:0 -6px}.row.g-4>[class*="col-"]{padding:0 6px}
.col-md-3{width:25%}.col-md-4{width:33.33%}.col-md-6{width:50%}.col-md-8{width:66.67%}
.col-3{width:25%}.col-4{width:33.33%}.col-6{width:50%}.col-12{width:100%}
[class*="col-"]{padding:0 8px;margin-bottom:12px}

/* ===== 浮动AI ===== */
.chat-bubble{position:fixed;bottom:20px;right:20px;z-index:9999;width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  box-shadow:0 3px 12px rgba(13,148,136,0.2);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:transform 0.2s,box-shadow 0.2s;text-decoration:none}
.chat-bubble:hover{transform:scale(1.06);box-shadow:0 4px 16px rgba(13,148,136,0.3)}
.chat-bubble svg{width:22px;height:22px;fill:#fff}
@keyframes float-pulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-3px)}}
.chat-bubble{animation:float-pulse 2.5s ease-in-out infinite}

/* ===== 文字工具 ===== */
.text-muted{color:var(--text-light)}
.text-danger{color:#ef4444}
.text-center{text-align:center}
.small{font-size:11px}
h5{font-size:13px;font-weight:600;margin-bottom:6px}
h6{font-size:12px;font-weight:600;margin-bottom:4px}
.d-flex{display:flex}
.justify-content-between{justify-content:space-between}
.align-items-end{align-items:flex-end}
.align-items-center{align-items:center}
.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mt-3{margin-top:12px}
.p-0{padding:0}.p-3{padding:16px}.p-4{padding:20px}.p-5{padding:2rem}
.gap-2{gap:6px}.gap-3{gap:12px}
.w-100{width:100%}.h-100{height:100%}
.ms-auto{margin-left:auto}

/* ===== 响应式 ===== */
@media(max-width:768px){
  .sidebar{transform:translateX(-100%);transition:transform 0.2s;z-index:200}
  .sidebar.open{transform:translateX(0)}
  .content{margin-left:0}
  .col-md-3,.col-md-4,.col-md-6,.col-md-8{width:100%}
}