:root{
  --primary:#7c5cff;
  --primary-dark:#6242e8;
  --primary-light:#efeaff;
  --sidebar:#1e1b2e;
  --sidebar-text:#a9a4c7;
  --bg:#f5f6fa;
  --card:#ffffff;
  --text:#2b2b3a;
  --muted:#8a8a9d;
  --border:#ececf4;
  --green:#18b26b;
  --red:#e8503a;
  --orange:#f5a623;
  --blue:#2f7cf6;
  --radius:12px;
  --shadow:0 2px 12px rgba(40,30,90,.06);
}
*{margin:0;padding:0;box-sizing:border-box;font-family:"PingFang SC","Microsoft YaHei",sans-serif;}
body{background:var(--bg);color:var(--text);font-size:14px;}
.layout{display:flex;min-height:100vh;}

/* 侧边栏 */
.sidebar{width:216px;background:var(--sidebar);color:var(--sidebar-text);display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:10;}
.logo{display:flex;align-items:center;gap:10px;padding:20px 18px 16px;}
.logo-icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#7c5cff,#b26cff);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;}
.logo-name{color:#fff;font-size:16px;font-weight:700;}
.logo-sub{font-size:11px;color:var(--sidebar-text);}
.menu{flex:1;overflow-y:auto;padding:6px 10px;}
.menu-group{font-size:11px;color:#6b6588;margin:14px 8px 6px;letter-spacing:1px;}
.menu-item{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:8px;cursor:pointer;margin-bottom:2px;font-size:13.5px;transition:.15s;}
.menu-item .ico{width:18px;text-align:center;font-size:14px;}
.menu-item:hover{background:rgba(255,255,255,.06);color:#fff;}
.menu-item.active{background:var(--primary);color:#fff;}
.sidebar-footer{padding:14px 18px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:var(--sidebar-text);}
.muted{color:var(--muted);}

/* 主区域 */
.main{flex:1;margin-left:216px;display:flex;flex-direction:column;min-width:0;}
.topbar{height:60px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:5;}
.topbar-title{font-size:17px;font-weight:700;}
.topbar-right{display:flex;gap:10px;align-items:center;}
.search-input{height:34px;width:240px;border:1px solid var(--border);border-radius:8px;padding:0 12px;outline:none;}
.search-input:focus{border-color:var(--primary);}
.content{padding:20px 22px 40px;}

/* 卡片与统计 */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:18px;}
.stat-card{background:var(--card);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow);}
.stat-card .label{color:var(--muted);font-size:12.5px;margin-bottom:8px;}
.stat-card .value{font-size:24px;font-weight:700;}
.stat-card .sub{font-size:12px;margin-top:6px;}
.stat-card .sub.up{color:var(--green);}
.stat-card .sub.down{color:var(--red);}

.panel{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px;}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border);}
.panel-title{font-size:15px;font-weight:700;}
.panel-body{padding:16px 18px;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.grid-3{display:grid;grid-template-columns:2fr 1fr;gap:18px;}
@media(max-width:1100px){.grid-2,.grid-3{grid-template-columns:1fr;}}

/* 表格 */
table{width:100%;border-collapse:collapse;}
th{font-size:12.5px;color:var(--muted);font-weight:600;text-align:left;padding:9px 10px;border-bottom:1px solid var(--border);white-space:nowrap;}
td{padding:10px;font-size:13px;border-bottom:1px solid #f3f3f8;vertical-align:middle;}
tr:hover td{background:#faf9ff;}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;white-space:nowrap;}
.tag-green{background:#e6f7ef;color:var(--green);}
.tag-red{background:#fdeae7;color:var(--red);}
.tag-orange{background:#fdf3e0;color:#c47f0e;}
.tag-blue{background:#e8f1fe;color:var(--blue);}
.tag-purple{background:var(--primary-light);color:var(--primary);}
.tag-gray{background:#f0f0f5;color:var(--muted);}

/* 按钮 */
.btn{border:none;border-radius:8px;padding:7px 14px;font-size:13px;cursor:pointer;transition:.15s;background:#eef0f6;color:var(--text);}
.btn:hover{opacity:.85;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-green{background:var(--green);color:#fff;}
.btn-red{background:var(--red);color:#fff;}
.btn-sm{padding:4px 10px;font-size:12px;}
.btn-link{background:none;color:var(--primary);padding:2px 6px;}
.btn-link:hover{text-decoration:underline;}

/* 表单 */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;}
.form-grid .full{grid-column:1/-1;}
.form-item label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:5px;}
.form-item input,.form-item select,.form-item textarea{width:100%;height:36px;border:1px solid var(--border);border-radius:8px;padding:0 10px;outline:none;font-size:13px;background:#fff;}
.form-item textarea{height:auto;padding:8px 10px;resize:vertical;}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{border-color:var(--primary);}
.form-actions{margin-top:16px;display:flex;justify-content:flex-end;gap:10px;}

/* 弹窗 */
.modal-mask{display:none;position:fixed;inset:0;background:rgba(20,15,40,.45);z-index:100;align-items:center;justify-content:center;}
.modal-mask.show{display:flex;}
.modal{background:#fff;border-radius:14px;width:560px;max-width:94vw;max-height:88vh;display:flex;flex-direction:column;box-shadow:0 12px 40px rgba(0,0,0,.2);}
.modal.wide{width:820px;}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;border-bottom:1px solid var(--border);font-size:15px;font-weight:700;}
.modal-close{cursor:pointer;font-size:22px;color:var(--muted);line-height:1;}
.modal-body{padding:18px 20px;overflow-y:auto;}

/* 图表 */
.chart{display:flex;align-items:flex-end;gap:14px;height:180px;padding:10px 4px 0;}
.chart .col{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end;}
.chart .bar{width:60%;max-width:44px;border-radius:6px 6px 0 0;background:linear-gradient(180deg,#9d85ff,#7c5cff);position:relative;min-height:4px;transition:.3s;}
.chart .bar:hover{opacity:.8;}
.chart .bar .num{position:absolute;top:-20px;left:50%;transform:translateX(-50%);font-size:11px;color:var(--muted);white-space:nowrap;}
.chart .x{font-size:11.5px;color:var(--muted);white-space:nowrap;}

/* 其他 */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px;}
.toolbar select,.toolbar input{height:34px;border:1px solid var(--border);border-radius:8px;padding:0 10px;font-size:13px;background:#fff;outline:none;}
.empty{padding:36px;text-align:center;color:var(--muted);}
.toast{position:fixed;top:70px;left:50%;transform:translateX(-50%) translateY(-16px);background:#2b2b3a;color:#fff;padding:9px 20px;border-radius:8px;font-size:13px;opacity:0;transition:.25s;z-index:200;pointer-events:none;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
.detail-drawer{position:fixed;top:0;right:-560px;width:540px;max-width:92vw;height:100vh;background:#fff;z-index:90;box-shadow:-6px 0 30px rgba(0,0,0,.12);transition:right .25s;display:flex;flex-direction:column;}
.detail-drawer.show{right:0;}
.drawer-head{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;}
.drawer-body{flex:1;overflow-y:auto;padding:16px 20px;}
.timeline{border-left:2px solid var(--primary-light);margin-left:6px;padding-left:16px;}
.timeline-item{position:relative;margin-bottom:14px;}
.timeline-item::before{content:"";position:absolute;left:-21px;top:4px;width:8px;height:8px;border-radius:50%;background:var(--primary);}
.timeline-item .t-time{font-size:11.5px;color:var(--muted);}
.timeline-item .t-text{font-size:13px;margin-top:2px;}
.photos{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;}
.photos img{width:100%;height:90px;object-fit:cover;border-radius:8px;border:1px solid var(--border);}
.photo-pair{display:flex;gap:8px;}
.photo-pair img{width:50%;height:100px;object-fit:cover;border-radius:8px;border:1px solid var(--border);}
.amount{font-weight:700;color:var(--primary);}
.pay-methods{display:flex;gap:8px;flex-wrap:wrap;}
.pay-method{border:1px solid var(--border);border-radius:8px;padding:8px 14px;cursor:pointer;font-size:13px;}
.pay-method.active{border-color:var(--primary);background:var(--primary-light);color:var(--primary);font-weight:600;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-thumb{background:#d5d3e6;border-radius:4px;}

/* 登录页 */
.login-mask{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2a2350 0%,#4a3a8c 50%,#7c5cff 100%);}
.login-box{width:360px;background:#fff;border-radius:16px;padding:36px 32px 28px;box-shadow:0 20px 60px rgba(20,10,50,.35);}
.login-logo{display:flex;justify-content:center;margin-bottom:14px;}
.login-logo .logo-icon{width:56px;height:56px;font-size:28px;border-radius:14px;}
.login-title{text-align:center;font-size:18px;font-weight:700;}
.login-sub{text-align:center;font-size:12.5px;color:var(--muted);margin:6px 0 22px;}
.login-error{min-height:18px;color:var(--red);font-size:12.5px;margin-top:4px;}
.login-tip{margin-top:16px;text-align:center;font-size:11.5px;color:var(--muted);}