/* 客服管理系统后台样式（与项目整体风格一致：浅色白卡片左侧栏） */
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",Arial,sans-serif;background:#f3f4f6;color:#1f2937;display:flex;min-height:100vh}
a{color:inherit;text-decoration:none}
.sidebar{width:210px;flex-shrink:0;background:#fff;border-right:1px solid #e5e7eb;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{padding:18px 16px;border-bottom:1px solid #f0f1f3;font-size:16px;font-weight:700}
.brand-sub{display:block;font-size:11px;color:#9ca3af;font-weight:400;margin-top:2px}
.sidebar nav{flex:1;padding:10px 8px;overflow-y:auto}
.nav-item{display:flex;align-items:center;padding:11px 12px;border-radius:8px;font-size:14px;color:#4b5563;margin-bottom:2px}
.nav-item:hover{background:#f5f6f8}
.nav-item.active{background:#eef2ff;color:#4f6ef7;font-weight:600}
.sidebar-foot{padding:14px 16px;border-top:1px solid #f0f1f3;font-size:12px;color:#6b7280;display:flex;align-items:center;gap:6px}
.sidebar-foot a{color:#4f6ef7}
.online-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;display:inline-block}
.main{flex:1;min-width:0}
.topbar{height:56px;background:#fff;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;justify-content:space-between;padding:0 24px}
.topbar h1{font-size:16px}
.logout-btn{font-size:13px;color:#4b5563;border:1px solid #d7dbe1;border-radius:7px;padding:6px 14px;background:#fff}
.logout-btn:hover{background:#fef2f2;color:#dc2626;border-color:#f3c1c1}
.content{padding:22px 24px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.stat-card{background:#fff;border:1px solid #e8eaee;border-radius:10px;padding:16px}
.stat-card .label{font-size:12px;color:#6b7280}
.stat-card .value{font-size:24px;font-weight:700;margin-top:8px}
.stat-card.purple .value{color:#6a5bf3}
.stat-card.blue .value{color:#1d6ef5}
.stat-card.green .value{color:#16a34a}
.stat-card.orange .value{color:#d97706}
.stat-card.red .value{color:#dc2626}
.panel{background:#fff;border:1px solid #e8eaee;border-radius:10px;padding:18px;margin-top:16px}
.panel-title{font-size:14px;font-weight:600;margin-bottom:12px}
table.grid{width:100%;border-collapse:collapse;font-size:13px}
table.grid th{text-align:left;color:#6b7280;font-weight:500;padding:9px 10px;border-bottom:1px solid #e8eaee;white-space:nowrap}
table.grid td{padding:10px;border-bottom:1px solid #f2f3f5;vertical-align:middle}
table.grid tr:hover td{background:#fafbfc}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px}
.badge.pending{background:#fff4e5;color:#d97a00}
.badge.open{background:#e8f9ee;color:#12934d}
.badge.closed{background:#eceef2;color:#7a8494}
.badge.admin{background:#eef2ff;color:#4f6ef7}
.badge.agent{background:#f0fdf4;color:#15803d}
.table-wrap{overflow-x:auto}
table.grid{min-width:600px}
.btn{display:inline-block;border:1px solid #d7dbe1;background:#fff;color:#374151;border-radius:7px;padding:7px 14px;font-size:13px;cursor:pointer}
.btn:hover{background:#f5f6f8}
.btn-primary{background:linear-gradient(135deg,#4f6ef7,#7b5cf0);border:none;color:#fff}
.btn-primary:hover{filter:brightness(1.05)}
.btn-sm{padding:4px 10px;font-size:12px}
.btn-danger{color:#dc2626;border-color:#f3c1c1}
.form-row{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.form-row label.form-label{width:150px;font-size:13px;color:#4b5563;padding-top:8px;flex-shrink:0}
.form-row .form-control{flex:1;min-width:240px}
input[type=text],input[type=password],input[type=number],select,textarea{width:100%;padding:9px 11px;border:1px solid #d7dbe1;border-radius:7px;font-size:13px;font-family:inherit;background:#fff}
textarea{min-height:80px;resize:vertical}
.form-hint{font-size:12px;color:#9ca3af;margin-top:5px}
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.toolbar input,.toolbar select{width:auto}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:13px}
.flash--ok{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}
.flash--err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.code-box{background:#1e293b;color:#e2e8f0;border-radius:10px;padding:14px;font-family:Consolas,Monaco,monospace;font-size:12px;word-break:break-all;position:relative}
.code-box .copy{position:absolute;top:8px;right:8px;background:#334155;color:#e2e8f0;border:none;border-radius:6px;padding:4px 10px;font-size:11px;cursor:pointer}
.switch{width:38px;height:21px;border-radius:11px;background:#d5d9e3;position:relative;display:inline-block;vertical-align:middle;transition:.2s;border:none;cursor:pointer}
.switch:after{content:"";position:absolute;width:17px;height:17px;border-radius:50%;background:#fff;top:2px;left:2px;transition:.2s}
.switch.on{background:#4f6ef7}
.switch.on:after{left:19px}
.pager{margin-top:12px;font-size:13px;color:#6b7280;display:flex;gap:8px}
.pager a{padding:4px 10px;border:1px solid #d7dbe1;border-radius:6px;background:#fff}
.pager .cur{background:#4f6ef7;color:#fff;border-color:#4f6ef7}
/* 登录页 */
html.login-html,html.login-html body{display:block!important;margin:0;padding:0;min-height:100vh}
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2b2f6e 0%,#4f6ef7 55%,#7b5cf0 100%);position:relative;overflow:hidden;padding:20px}
.login-page::before,.login-page::after{content:"";position:absolute;border-radius:50%;filter:blur(90px);opacity:.35}
.login-page::before{width:420px;height:420px;background:#9db6ff;top:-140px;left:-120px}
.login-page::after{width:380px;height:380px;background:#1a1e4d;bottom:-120px;right:-100px}
.login-card{position:relative;z-index:1;width:100%;max-width:400px;background:rgba(255,255,255,.96);border-radius:18px;box-shadow:0 24px 60px rgba(13,20,60,.35);padding:38px 34px 30px}
.login-brand{text-align:center;margin-bottom:26px}
.login-brand-mark{width:54px;height:54px;margin:0 auto 14px;border-radius:14px;background:linear-gradient(135deg,#4f6ef7,#7b5cf0);display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:700}
.login-brand h1{font-size:20px;color:#17233d;margin:0 0 4px}
.login-brand p{font-size:12px;color:#8a94a6;margin:0;letter-spacing:2px}
.login-field{position:relative;margin-bottom:16px}
.login-field input{width:100%;padding:13px 14px;font-size:14px;border:1.5px solid #e3e7ee;border-radius:10px;background:#f8fafc;transition:.2s;outline:none;font-family:inherit}
.login-field input:focus{border-color:#4f6ef7;background:#fff;box-shadow:0 0 0 4px rgba(79,110,247,.12)}
.login-error{background:#fef2f2;color:#dc2626;border:1px solid #fecaca;font-size:13px;padding:10px 14px;border-radius:8px;margin-bottom:16px;text-align:center}
.login-btn{width:100%;padding:13px;border:none;border-radius:10px;cursor:pointer;background:linear-gradient(135deg,#4f6ef7,#7b5cf0);color:#fff;font-size:15px;font-weight:600;letter-spacing:6px;text-indent:6px;box-shadow:0 8px 20px rgba(79,110,247,.3);font-family:inherit}
.login-btn:hover{filter:brightness(1.06)}
.login-foot{text-align:center;margin-top:20px;font-size:11px;color:#b3bac6}
@media (max-width:860px){
    body{flex-direction:column}
    .sidebar{width:100%;height:auto;position:static}
    .sidebar nav{display:flex;flex-wrap:wrap}
    .sidebar-foot{display:none}
    .content{padding:14px}
    .form-row{flex-direction:column;gap:6px}
    .form-row label.form-label{width:auto;padding-top:0}
    .form-row .form-control{min-width:0;width:100%}
    .topbar{position:sticky;top:0;z-index:10}
}