:root{
  --gold:#C2A36B; --gold-deep:#8B6914; --gold-soft:#E7D6A8;
  --ink:#2b2b2b; --ink-soft:#5c5c5c; --ink-faint:#9a9a9a;
  --bg:#f4f1ea; --paper:#ffffff; --paper-2:#faf8f3;
  --line:#e5e0d5; --line-soft:#efece4;
  --danger:#c0533b; --ok:#4a7c59; --info:#3a6ea5;
  --shadow:0 2px 12px rgba(80,60,20,.06);
  --shadow-lg:0 8px 30px rgba(80,60,20,.12);
  --sidebar:#241f18;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.6; font-size:14px;
}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:14px;}
a{color:inherit;text-decoration:none;}

/* ===== 布局 ===== */
.layout{display:flex;min-height:100vh;}
.sidebar{
  width:220px;flex-shrink:0;background:var(--sidebar);color:#e9e2d4;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;
}
.side-brand{padding:20px 22px;font-weight:700;font-size:16px;display:flex;align-items:center;gap:10px;border-bottom:1px solid rgba(255,255,255,.07);}
.side-brand .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--gold),var(--gold-deep));display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;}
.side-brand small{display:block;font-size:11px;color:#a89a7e;font-weight:400;}
.nav{padding:14px 12px;flex:1;overflow-y:auto;}
.nav-link{
  display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:10px;
  color:#cdc4b3;font-size:14px;margin-bottom:4px;transition:all .15s;
}
.nav-link:hover{background:rgba(255,255,255,.05);color:#fff;}
.nav-link.active{background:linear-gradient(90deg,rgba(194,163,107,.22),rgba(194,163,107,.04));color:#fff;position:relative;}
.nav-link.active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--gold);}
.nav-link .ic{width:18px;text-align:center;font-size:15px;}
.side-foot{padding:14px 18px;border-top:1px solid rgba(255,255,255,.07);font-size:12px;color:#8c8170;}

.main{flex:1;display:flex;flex-direction:column;min-width:0;}
.topbar{
  height:60px;background:var(--paper);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:16px;padding:0 24px;position:sticky;top:0;z-index:20;box-shadow:var(--shadow);
}
.topbar h1{font-size:17px;font-weight:700;}
.topbar .spacer{margin-left:auto;display:flex;align-items:center;gap:14px;}
.user-chip{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);}
.avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;}
.content{padding:24px;flex:1;}

/* ===== 卡片 ===== */
.card{background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);}
.card-pad{padding:20px;}
.card-head{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line-soft);}
.card-head h3{font-size:15px;font-weight:700;}
.card-head .sub{font-size:12px;color:var(--ink-faint);margin-left:auto;}

/* ===== 指标卡 ===== */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:20px;}
.metric{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow);position:relative;overflow:hidden;}
.metric::after{content:"";position:absolute;right:-20px;top:-20px;width:80px;height:80px;border-radius:50%;background:radial-gradient(circle,rgba(194,163,107,.16),transparent 70%);}
.metric .label{font-size:13px;color:var(--ink-faint);}
.metric .value{font-size:28px;font-weight:700;margin-top:6px;color:var(--ink);}
.metric .value small{font-size:14px;font-weight:400;color:var(--ink-faint);margin-left:3px;}
.metric .ic{position:absolute;right:16px;bottom:14px;font-size:20px;opacity:.5;}

/* ===== 工具栏 / 筛选 ===== */
.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.toolbar .grow{margin-left:auto;}
.field-inline{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-soft);}
.input{border:1px solid var(--line);border-radius:9px;padding:8px 12px;background:var(--paper);color:var(--ink);transition:border-color .15s;}
.input:focus{outline:none;border-color:var(--gold);}
.range-btns{display:inline-flex;background:var(--paper-2);border:1px solid var(--line);border-radius:10px;padding:3px;}
.range-btn{border:none;background:transparent;padding:6px 13px;border-radius:8px;font-size:13px;color:var(--ink-soft);}
.range-btn.active{background:var(--paper);color:var(--gold-deep);font-weight:600;box-shadow:var(--shadow);}

/* ===== 按钮 ===== */
.btn{border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:8px 15px;border-radius:9px;font-size:13.5px;transition:all .15s;}
.btn:hover{border-color:var(--gold);color:var(--gold-deep);}
.btn-primary{background:linear-gradient(135deg,var(--gold),var(--gold-deep));border:none;color:#fff;font-weight:600;}
.btn-primary:hover{filter:brightness(1.05);color:#fff;}
.btn-sm{padding:6px 11px;font-size:12.5px;}
.btn-ghost{background:transparent;}

/* ===== 表格 ===== */
.table-wrap{overflow-x:auto;}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px;}
.tbl th,.tbl td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line-soft);white-space:nowrap;}
.tbl th{font-size:12px;font-weight:600;color:var(--ink-faint);background:var(--paper-2);position:sticky;top:0;}
.tbl tbody tr:hover{background:rgba(194,163,107,.05);}
.tbl td.wrap{white-space:normal;max-width:280px;}
.tag{display:inline-block;padding:1px 9px;border-radius:99px;font-size:11.5px;background:var(--paper-2);border:1px solid var(--line);color:var(--ink-soft);}
.tag.gold{background:rgba(194,163,107,.14);border-color:var(--gold-soft);color:var(--gold-deep);}
.tag.green{background:rgba(74,124,89,.12);border-color:#bcd8c4;color:var(--ok);}

/* ===== 分页 ===== */
.pager{display:flex;align-items:center;gap:10px;justify-content:flex-end;margin-top:14px;font-size:13px;color:var(--ink-soft);}
.pager button:disabled{opacity:.4;cursor:not-allowed;}

/* ===== 登录页 ===== */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#2a241c,#3a3225);}
.login-card{width:380px;max-width:92vw;background:var(--paper);border-radius:18px;padding:36px 32px;box-shadow:0 20px 60px rgba(0,0,0,.3);}
.login-brand{display:flex;align-items:center;gap:12px;margin-bottom:26px;}
.login-brand .logo{width:42px;height:42px;border-radius:11px;background:linear-gradient(135deg,var(--gold),var(--gold-deep));display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;}
.login-brand h2{font-size:19px;}
.login-brand p{font-size:12px;color:var(--ink-faint);}
.login-card label{display:block;font-size:13px;color:var(--ink-soft);margin:14px 0 6px;}
.login-card .input{width:100%;}
.login-card .btn-primary{width:100%;margin-top:22px;padding:11px;}
.login-err{color:var(--danger);font-size:13px;margin-top:12px;min-height:18px;}

/* ===== 图表 ===== */
.chart-box{position:relative;height:300px;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px;}

/* ===== 提示 ===== */
.empty{padding:40px;text-align:center;color:var(--ink-faint);}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:11px 20px;border-radius:10px;font-size:13.5px;opacity:0;transition:all .25s;z-index:200;pointer-events:none;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ===== 响应式 ===== */
@media (max-width:860px){
  .sidebar{position:fixed;left:0;top:0;z-index:100;transform:translateX(-100%);transition:transform .25s;}
  .sidebar.open{transform:translateX(0);}
  .menu-toggle{display:inline-flex !important;}
  .grid-2{grid-template-columns:1fr;}
  .content{padding:16px;}
}
.menu-toggle{display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:9px;background:var(--paper);align-items:center;justify-content:center;font-size:18px;}

/* ===== 表单（弹窗内复用） ===== */
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:6px;}
.field input{
  width:100%;font-family:inherit;font-size:14px;color:var(--ink);
  background:var(--paper-2);border:1px solid var(--line);border-radius:9px;padding:10px 13px;transition:border-color .2s,background .2s;
}
.field input:focus{outline:none;border-color:var(--gold);background:#fff;}
.form__msg{font-size:13px;color:var(--ok);margin:4px 0 14px;line-height:1.5;}
.form__msg.err{color:var(--danger);}

/* ===== 修改密码弹窗 ===== */
.modal-mask{position:fixed;inset:0;background:rgba(30,24,16,.45);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:300;padding:20px;}
.modal-mask[hidden]{display:none;}
.modal{width:420px;max-width:100%;background:var(--paper);border-radius:16px;box-shadow:0 24px 70px rgba(0,0,0,.28);overflow:hidden;animation:modalIn .2s ease;}
@keyframes modalIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}
.modal__head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line-soft);}
.modal__head h3{font-size:16px;font-weight:700;}
.modal__close{border:0;background:transparent;font-size:24px;line-height:1;color:var(--ink-faint);cursor:pointer;padding:0 4px;}
.modal__close:hover{color:var(--ink);}
.modal__body{padding:20px 22px 22px;}
.modal__foot{display:flex;justify-content:flex-end;gap:10px;margin-top:6px;}
.modal__foot .btn{padding:8px 18px;}