:root{
  --primary:#2563EB; --primary-dark:#1E40AF; --primary-light:#EFF4FF;
  --bg:#F5F7FA; --card:#FFFFFF; --border:#DEE3E8;
  --text:#1F2329; --text2:#646A73;
  --success:#16A34A; --danger:#DC2626; --warn:#D97706;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;}
a{color:var(--primary);text-decoration:none;}
.topnav{display:flex;align-items:center;gap:16px;background:#fff;border-bottom:1px solid var(--border);padding:0 24px;height:56px;position:sticky;top:0;z-index:50;}
.brand{font-weight:700;font-size:16px;color:var(--primary);white-space:nowrap;}
.nav-links{display:flex;gap:4px;flex:1;}
.nav-links a{padding:6px 12px;border-radius:6px;color:var(--text2);font-size:14px;}
.nav-links a.active,.nav-links a:hover{background:var(--primary-light);color:var(--primary);}
.nav-user{font-size:13px;color:var(--text2);display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end;}
.badge{padding:2px 8px;border-radius:10px;font-size:12px;background:var(--primary-light);color:var(--primary);white-space:nowrap;}
.badge.warn{background:#FEF3C7;color:#B45309;}
.badge.danger{background:#FEE2E2;color:#B91C1C;}
.badge.ok{background:#DCFCE7;color:#15803D;}
.container{max-width:1080px;margin:24px auto;padding:0 24px;}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:20px;}
.card h2{font-size:18px;margin-bottom:14px;}
.btn{display:inline-block;border:1px solid var(--border);background:#fff;color:var(--text);padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px;font-family:inherit;}
.btn:hover{background:#F8FAFC;}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn.primary:hover{background:var(--primary-dark);}
.btn.danger{color:var(--danger);border-color:#FECACA;background:#fff;}
.btn.danger:hover{background:#FEF2F2;}
.btn.sm{padding:4px 10px;font-size:13px;}
input,select,textarea{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit;background:#fff;color:var(--text);}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);}
label{display:block;font-size:13px;color:var(--text2);margin-bottom:6px;}
table{width:100%;border-collapse:collapse;background:#fff;}
#table-wrap{overflow-x:auto;}
#table-wrap table{min-width:980px;}
#user-wrap{overflow-x:auto;}
#user-wrap table{min-width:780px;}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top;font-size:13px;}
th{background:#F8FAFC;color:var(--text2);font-weight:600;white-space:nowrap;}
tr:hover td{background:#FAFBFC;}
.muted{color:var(--text2);font-size:13px;}
.empty{padding:48px 20px;text-align:center;color:var(--text2);}
.toast{position:fixed;top:24px;left:50%;transform:translateX(-50%);background:#1F2329;color:#fff;padding:10px 20px;border-radius:8px;font-size:14px;z-index:9999;box-shadow:0 4px 16px rgba(0,0,0,.2);display:none;max-width:90vw;text-align:center;}
.toast.show{display:block;}
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.4);display:none;align-items:center;justify-content:center;z-index:100;}
.modal-mask.show{display:flex;}
.modal{background:#fff;border-radius:12px;width:600px;max-width:94vw;max-height:88vh;overflow:auto;padding:24px;}
.modal h3{margin-bottom:14px;}
.modal .row{margin-bottom:14px;}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;align-items:center;}
.filters select,.filters input{width:auto;min-width:120px;}
.filters .search{flex:1;min-width:180px;}
.pager{display:flex;align-items:center;gap:10px;margin-top:14px;justify-content:flex-end;}
.pager span{color:var(--text2);font-size:13px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.stat-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px 18px;}
.stat-card .num{font-size:26px;font-weight:700;color:var(--primary);}
.stat-card .label{color:var(--text2);font-size:13px;margin-top:2px;}
.status-pill{display:inline-block;padding:2px 10px;border-radius:12px;font-size:12px;white-space:nowrap;}
.st-未联系{background:#F1F5F9;color:#475569;}
.st-已联系{background:#DBEAFE;color:#1D4ED8;}
.st-有意向{background:#FEF3C7;color:#B45309;}
.st-已成交{background:#DCFCE7;color:#15803D;}
.st-流失{background:#FEE2E2;color:#B91C1C;}
.step-card{border:1px solid var(--border);border-radius:10px;padding:16px;margin-bottom:14px;background:#fff;}
.step-num{display:inline-flex;width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;align-items:center;justify-content:center;font-size:13px;margin-right:8px;font-weight:600;flex-shrink:0;}
code{background:#F1F5F9;border:1px solid var(--border);border-radius:4px;padding:1px 6px;font-size:13px;color:#1E40AF;}
.auth-wrap{max-width:400px;margin:8vh auto 0;padding:0 20px;}
.auth-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:28px;}
.auth-tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:20px;}
.auth-tabs button{flex:1;background:none;border:none;padding:10px;font-size:15px;cursor:pointer;color:var(--text2);border-bottom:2px solid transparent;}
.auth-tabs button.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600;}
.form-row{margin-bottom:14px;}
.errbox{display:none;background:#FEF2F2;border:1px solid #FECACA;color:#B91C1C;border-radius:6px;padding:8px 12px;font-size:13px;margin-bottom:12px;}
.errbox.show{display:block;}
.hint{font-size:12.5px;color:var(--text2);margin-top:10px;text-align:center;}
.demo-page{max-width:640px;margin:0 auto;}
.demo-video{background:#111827;color:#fff;border-radius:12px;height:340px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-direction:column;gap:8px;}
.demo-title{font-size:18px;font-weight:600;margin:14px 0 4px;}
.demo-meta{color:var(--text2);font-size:13px;margin-bottom:16px;}
.demo-comment{border-bottom:1px solid var(--border);padding:12px 0;}
.demo-comment .nick{font-size:13px;color:var(--text2);margin-bottom:2px;}
.demo-comment .txt{font-size:14px;}
.timeline{font-size:13px;color:var(--text2);}
.timeline div{padding:4px 0;border-left:2px solid var(--border);padding-left:12px;margin-left:4px;}
.bar-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;font-size:13px;}
.bar-row .name{width:64px;color:var(--text2);}
.bar-row .bar{flex:1;background:#F1F5F9;border-radius:4px;height:18px;overflow:hidden;}
.bar-row .fill{background:var(--primary);height:100%;border-radius:4px;min-width:2px;}
.bar-row .val{width:40px;text-align:right;color:var(--text);font-weight:600;}
.lead-content{max-height:80px;overflow:hidden;position:relative;}
tr.expanded .lead-content{max-height:none;}
@media (max-width:760px){.grid-4{grid-template-columns:repeat(2,1fr);}.grid-2{grid-template-columns:1fr;}}