/* ====== 全局重置 ====== */
*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --primary:#4f6ef7;
  --primary-dark:#3b54d4;
  --primary-light:#eef2ff;
  --success:#10b981;
  --warning:#f59e0b;
  --danger:#ef4444;
  --gray-50:#f9fafb;
  --gray-100:#f3f4f6;
  --gray-200:#e5e7eb;
  --gray-300:#d1d5db;
  --gray-400:#9ca3af;
  --gray-500:#6b7280;
  --gray-600:#4b5563;
  --gray-700:#374151;
  --gray-800:#1f2937;
  --gray-900:#111827;
  --sidebar-w:240px;
  --topbar-h:60px;
  --radius:10px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.06);
  --shadow:0 4px 12px rgba(0,0,0,.08);
  --shadow-lg:0 10px 30px rgba(0,0,0,.12);
}
body{
  font-family:'Segoe UI','PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
  background:var(--gray-100);
  color:var(--gray-800);
  font-size:14px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
input,select,textarea,button{font-family:inherit;font-size:inherit;outline:none;border:none;}

/* ====== 通用按钮 ====== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 16px;border-radius:8px;cursor:pointer;font-weight:500;
  transition:all .2s;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-secondary{background:var(--gray-100);color:var(--gray-700);}
.btn-secondary:hover{background:var(--gray-200);}
.btn-danger{background:var(--danger);color:#fff;}
.btn-danger:hover{opacity:.9;}
.btn-success{background:var(--success);color:#fff;}
.btn-success:hover{opacity:.9;}
.btn-outline{border:1px solid var(--gray-300);background:#fff;color:var(--gray-700);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);}
.btn-sm{padding:5px 10px;font-size:12px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* ====== 登录页 ====== */
.login-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);
  padding:20px;
}
.login-card{
  background:#fff;border-radius:20px;padding:40px;width:100%;max-width:400px;
  box-shadow:0 20px 60px rgba(0,0,0,.2);text-align:center;
}
.login-logo{
  margin:0 auto 20px;
  display:flex;align-items:center;justify-content:center;
}
.login-logo img{
  width:100px;height:auto;object-fit:contain;
  border-radius:12px;
}
.sidebar-logo{
  width:32px;height:32px;object-fit:contain;border-radius:6px;flex-shrink:0;
}
.login-card h1{font-size:22px;color:var(--gray-900);margin-bottom:6px;}
.login-subtitle{color:var(--gray-400);margin-bottom:28px;}
.login-form{text-align:left;}
.form-group{margin-bottom:18px;}
.form-group label{display:block;margin-bottom:6px;font-weight:500;color:var(--gray-600);font-size:13px;}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:10px 14px;border:1px solid var(--gray-300);
  border-radius:8px;transition:border-color .2s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  border-color:var(--primary);
}
.login-hint{margin-top:14px;font-size:12px;color:var(--gray-400);text-align:center;}

/* ====== 应用布局 ====== */
.app-page{display:flex;min-height:100vh;}

/* ====== 侧边栏 ====== */
.sidebar{
  width:var(--sidebar-w);background:var(--gray-900);color:#fff;
  display:flex;flex-direction:column;position:fixed;height:100vh;z-index:100;
  transition:transform .3s;
}
.sidebar-header{
  padding:20px;display:flex;align-items:center;gap:10px;
  border-bottom:1px solid rgba(255,255,255,.1);font-size:17px;font-weight:600;
}
.sidebar-nav{flex:1;padding:12px 8px;overflow-y:auto;}
.nav-item{
  display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:8px;
  color:rgba(255,255,255,.6);cursor:pointer;transition:all .2s;margin-bottom:2px;font-size:14px;
}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-item.active{color:#fff;background:var(--primary);}
.sidebar-footer{
  padding:16px;border-top:1px solid rgba(255,255,255,.1);
}
.user-info{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.user-avatar{
  width:36px;height:36px;border-radius:50%;background:var(--primary);
  display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;
}
.user-name{font-size:14px;font-weight:500;}
.user-role{font-size:12px;color:rgba(255,255,255,.5);}
.btn-logout{
  width:100%;padding:8px;border-radius:8px;cursor:pointer;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.7);
  font-size:13px;transition:all .2s;
}
.btn-logout:hover{background:rgba(239,68,68,.3);color:#fff;}

/* ====== 主内容区 ====== */
.main-content{
  margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-height:100vh;
}
.topbar{
  height:var(--topbar-h);background:#fff;border-bottom:1px solid var(--gray-200);
  display:flex;align-items:center;gap:14px;padding:0 24px;position:sticky;top:0;z-index:50;
}
.topbar h2{font-size:18px;font-weight:600;}
.menu-toggle{display:none;background:none;cursor:pointer;color:var(--gray-600);}
.page-body{padding:24px;flex:1;}

/* ====== 统计卡片 ====== */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px;}
.stat-card{
  background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm);
  display:flex;align-items:center;gap:14px;
}
.stat-icon{
  width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;
}
.stat-icon.blue{background:var(--primary-light);color:var(--primary);}
.stat-icon.green{background:#d1fae5;color:var(--success);}
.stat-icon.orange{background:#fef3c7;color:var(--warning);}
.stat-icon.purple{background:#f3e8ff;color:#a855f7;}
.stat-value{font-size:28px;font-weight:700;line-height:1;}
.stat-label{font-size:13px;color:var(--gray-500);margin-top:4px;}

/* ====== 面板 ====== */
.panel{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:20px;overflow:hidden;}
.panel-header{
  display:flex;align-items:center;justify-content:space-between;padding:16px 20px;
  border-bottom:1px solid var(--gray-100);
}
.panel-title{font-size:16px;font-weight:600;}
.panel-body{padding:20px;}

/* ====== 工具栏 ====== */
.toolbar{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px;
}
.toolbar .search-box{
  position:relative;flex:1;min-width:200px;
}
.toolbar .search-box input{
  width:100%;padding:9px 14px 9px 38px;border:1px solid var(--gray-200);
  border-radius:8px;background:var(--gray-50);
}
.toolbar .search-box svg{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  color:var(--gray-400);
}
.toolbar select{
  padding:9px 14px;border:1px solid var(--gray-200);border-radius:8px;
  background:#fff;cursor:pointer;
}

/* ====== 表格 ====== */
.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;}
th{
  text-align:left;padding:12px 14px;font-size:12px;font-weight:600;
  color:var(--gray-500);text-transform:uppercase;letter-spacing:.5px;
  border-bottom:1px solid var(--gray-200);white-space:nowrap;background:var(--gray-50);
}
td{padding:12px 14px;border-bottom:1px solid var(--gray-100);font-size:14px;}
tr:hover{background:var(--gray-50);}
.checkbox-col{width:40px;text-align:center;}
td .cell-name{font-weight:500;color:var(--gray-800);}
td .cell-phone{color:var(--gray-500);font-variant-numeric:tabular-nums;}
td .cell-actions{display:flex;gap:6px;}

/* ====== 状态标签 ====== */
.tag{
  display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500;
}
.tag-lead{background:#e0e7ff;color:#4f46e5;}
.tag-following{background:#fef3c7;color:#92400e;}
.tag-deal{background:#d1fae5;color:#065f46;}
.tag-lost{background:#fee2e2;color:#991b1b;}

/* ====== 分页 ====== */
.pagination{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:12px;}
.pagination-info{font-size:13px;color:var(--gray-500);}
.pagination-btns{display:flex;gap:6px;}
.pagination-btns button{
  padding:6px 12px;border:1px solid var(--gray-200);border-radius:6px;
  background:#fff;cursor:pointer;color:var(--gray-600);
}
.pagination-btns button:hover:not(:disabled){border-color:var(--primary);color:var(--primary);}
.pagination-btns button:disabled{opacity:.4;cursor:not-allowed;}
.pagination-btns button.active{background:var(--primary);color:#fff;border-color:var(--primary);}

/* ====== 模态框 ====== */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:1000;
  display:flex;align-items:center;justify-content:center;padding:20px;
}
.modal{
  background:#fff;border-radius:14px;width:100%;max-width:540px;
  max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);
}
.modal.modal-lg{max-width:800px;}
.modal.modal-sm{max-width:420px;}
.modal-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 24px;border-bottom:1px solid var(--gray-100);
}
.modal-title{font-size:17px;font-weight:600;}
.modal-close{
  width:32px;height:32px;border-radius:8px;cursor:pointer;background:none;
  display:flex;align-items:center;justify-content:center;color:var(--gray-400);
}
.modal-close:hover{background:var(--gray-100);color:var(--gray-700);}
.modal-body{padding:24px;}
.modal-footer{
  display:flex;justify-content:flex-end;gap:10px;padding:16px 24px;
  border-top:1px solid var(--gray-100);
}

/* ====== 表单 ====== */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;}
.form-group-full{grid-column:1/-1;}
textarea{resize:vertical;min-height:80px;}

/* ====== 客户详情 ====== */
.customer-detail-head{display:flex;align-items:center;gap:16px;margin-bottom:24px;}
.customer-avatar-lg{
  width:56px;height:56px;border-radius:50%;background:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff;font-weight:600;
}
.customer-name-lg{font-size:20px;font-weight:700;}
.customer-meta{color:var(--gray-500);font-size:13px;margin-top:4px;}
.detail-tabs{display:flex;gap:0;border-bottom:2px solid var(--gray-100);margin-bottom:20px;}
.detail-tab{
  padding:10px 20px;cursor:pointer;font-weight:500;color:var(--gray-500);
  border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s;
}
.detail-tab.active{color:var(--primary);border-color:var(--primary);}

/* ====== 跟进时间线 ====== */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:'';position:absolute;left:8px;top:4px;bottom:4px;width:2px;background:var(--gray-200);}
.timeline-item{position:relative;margin-bottom:20px;}
.timeline-item::before{
  content:'';position:absolute;left:-24px;top:4px;width:12px;height:12px;
  border-radius:50%;background:var(--primary);border:2px solid #fff;box-shadow:0 0 0 2px var(--primary);
}
.timeline-content{background:var(--gray-50);border-radius:8px;padding:12px 16px;}
.timeline-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;}
.timeline-type{font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-light);padding:2px 8px;border-radius:4px;}
.timeline-time{font-size:12px;color:var(--gray-400);}
.timeline-text{font-size:14px;color:var(--gray-700);}
.timeline-user{font-size:12px;color:var(--gray-400);margin-top:4px;}

/* ====== 成交记录卡片 ====== */
.deal-card{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;background:var(--gray-50);border-radius:8px;margin-bottom:10px;
}
.deal-type{font-weight:600;}
.deal-amount{color:var(--success);font-weight:700;}
.deal-date{font-size:12px;color:var(--gray-400);}

/* ====== Toast ====== */
.toast-container{position:fixed;top:20px;right:20px;z-index:2000;display:flex;flex-direction:column;gap:10px;}
.toast{
  padding:12px 20px;border-radius:8px;color:#fff;font-size:14px;font-weight:500;
  box-shadow:var(--shadow-lg);animation:slideIn .3s ease;min-width:260px;
}
.toast-success{background:var(--success);}
.toast-error{background:var(--danger);}
.toast-info{background:var(--primary);}
@keyframes slideIn{from{transform:translateX(100%);opacity:0;}to{transform:translateX(0);opacity:1;}}

/* ====== 空状态 ====== */
.empty-state{text-align:center;padding:60px 20px;color:var(--gray-400);}
.empty-state svg{margin-bottom:12px;}

/* ====== 图表容器 ====== */
.chart-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px;}
.chart-container{position:relative;height:300px;}

/* ====== 上传区域 ====== */
.upload-zone{
  border:2px dashed var(--gray-300);border-radius:12px;padding:40px;text-align:center;
  cursor:pointer;transition:border-color .2s;
}
.upload-zone:hover{border-color:var(--primary);}
.upload-zone.drag-over{border-color:var(--primary);background:var(--primary-light);}
.upload-zone svg{color:var(--gray-400);margin-bottom:12px;}
.upload-hint{color:var(--gray-400);font-size:13px;margin-top:8px;}
.upload-filename{margin-top:10px;font-weight:500;color:var(--primary);}

/* ====== 响应式 ====== */
@media(max-width:768px){
  :root{--sidebar-w:0px;}
  .sidebar{transform:translateX(-100%);width:240px;}
  .sidebar.open{transform:translateX(0);}
  .main-content{margin-left:0;}
  .menu-toggle{display:block;}
  .form-row,.form-row-3{grid-template-columns:1fr;}
  .chart-row{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .page-body{padding:14px;}
}