/* ===== 从原页面提取的深色科技风样式，保持不变 ===== */
:root{
  --bg:#040814; --card:rgba(13,22,44,.62); --card-border:rgba(56,189,248,.16);
  --cyan:#22d3ee; --blue:#38bdf8; --violet:#818cf8; --text:#e2e8f0; --dim:#7d8db1;
  --green:#34d399; --amber:#fbbf24; --pink:#f472b6;
  --red:#f87171;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
  background:var(--bg); color:var(--text); overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
/* ---------- background ---------- */
.bg-grid{position:fixed;inset:-60px;z-index:-2;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(56,189,248,.055) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 30%,transparent 100%);
          mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 30%,transparent 100%);
  animation:gridMove 30s linear infinite;
}
@keyframes gridMove{to{transform:translate(44px,44px)}}
.orb{position:fixed;border-radius:50%;filter:blur(110px);z-index:-3;pointer-events:none;opacity:.5}
.orb1{width:560px;height:560px;top:-180px;left:-120px;background:radial-gradient(circle,#0ea5e9 0%,transparent 65%)}
.orb2{width:520px;height:520px;top:-140px;right:-140px;background:radial-gradient(circle,#7c3aed 0%,transparent 65%)}
.orb3{width:460px;height:460px;bottom:-200px;left:35%;background:radial-gradient(circle,#0891b2 0%,transparent 65%);opacity:.35}
/* ---------- layout ---------- */
.wrap{max-width:1440px;margin:0 auto;padding:26px 28px 48px}
header{display:flex;align-items:center;gap:18px;margin-bottom:22px;flex-wrap:wrap}
.logo{width:52px;height:52px;flex:none;filter:drop-shadow(0 0 12px rgba(34,211,238,.55))}
h1{font-size:26px;letter-spacing:2px;font-weight:700;
  background:linear-gradient(92deg,#e0f2fe 10%,var(--cyan) 45%,var(--violet) 90%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.subtitle{font-size:12px;color:var(--dim);letter-spacing:3px;margin-top:3px;text-transform:uppercase}
.hud-right{margin-left:auto;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.chip{font-size:12px;color:var(--dim);border:1px solid var(--card-border);background:var(--card);
  padding:7px 14px;border-radius:8px;display:flex;gap:8px;align-items:center;backdrop-filter:blur(8px)}
.chip b{color:var(--cyan);font-weight:600}
.dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.35}}
/* ---------- cards ---------- */
.card{position:relative;background:var(--card);border:1px solid var(--card-border);
  border-radius:14px;backdrop-filter:blur(10px);box-shadow:0 8px 32px rgba(2,8,26,.45)}
.hud::before,.hud::after{content:'';position:absolute;width:16px;height:16px;pointer-events:none}
.hud::before{top:-1px;left:-1px;border-top:2px solid var(--cyan);border-left:2px solid var(--cyan);border-top-left-radius:14px;opacity:.7}
.hud::after{bottom:-1px;right:-1px;border-bottom:2px solid var(--violet);border-right:2px solid var(--violet);border-bottom-right-radius:14px;opacity:.7}
/* ---------- filters ---------- */
.filters{display:grid;grid-template-columns:repeat(3,1fr) auto;gap:14px;padding:18px;margin-bottom:18px;align-items:end}
.field label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--dim);margin-bottom:7px;letter-spacing:1px}
.field label svg{width:13px;height:13px;stroke:var(--cyan)}
select,input[type=text],input[type=password],input[type=search]{width:100%;appearance:none;-webkit-appearance:none;background:rgba(4,10,26,.8);color:var(--text);
  border:1px solid rgba(56,189,248,.25);border-radius:9px;padding:10px 32px 10px 12px;font-size:13.5px;height:41px;line-height:21px;
  outline:none;transition:.2s;cursor:pointer;font-family:inherit;box-sizing:border-box}
input[type=text],input[type=password],input[type=search]{padding-right:12px;cursor:text}
select:hover,input[type=text]:hover,input[type=password]:hover,input[type=search]:hover{border-color:rgba(56,189,248,.5)}
select:focus,input[type=text]:focus,input[type=password]:focus,input[type=search]:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.15)}
.field{position:relative}
.field.sel::after{content:'';position:absolute;right:13px;bottom:17px;width:7px;height:7px;
  border-right:1.5px solid var(--dim);border-bottom:1.5px solid var(--dim);transform:rotate(45deg);pointer-events:none}
select option{background:#0a1226;color:var(--text)}
.btn{padding:10px 20px;border-radius:9px;border:1px solid rgba(148,163,184,.3);cursor:pointer;
  background:transparent;color:var(--dim);font-size:13px;transition:.2s;font-family:inherit;letter-spacing:1px}
.btn:hover{color:var(--cyan);border-color:var(--cyan);box-shadow:0 0 12px rgba(34,211,238,.25)}
.btn-primary{background:rgba(34,211,238,.12);border-color:var(--cyan);color:var(--cyan)}
.btn-primary:hover{background:rgba(34,211,238,.2);box-shadow:0 0 16px rgba(34,211,238,.35)}
.btn-danger{border-color:rgba(248,113,113,.4);color:var(--red)}
.btn-danger:hover{background:rgba(248,113,113,.12);border-color:var(--red);color:var(--red);box-shadow:0 0 12px rgba(248,113,113,.25)}
.btn-sm{padding:5px 12px;font-size:12px}
/* ---------- KPI ---------- */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
.kpi{padding:20px 22px;overflow:hidden}
.kpi .k-label{font-size:12px;color:var(--dim);letter-spacing:2px;display:flex;align-items:center;gap:8px}
.kpi .k-label svg{width:15px;height:15px}
.kpi .k-value{font-size:32px;font-weight:700;margin-top:10px;letter-spacing:.5px;line-height:1.1}
.kpi .k-sub{font-size:11.5px;color:var(--dim);margin-top:6px}
.k-amount .k-value{background:linear-gradient(90deg,var(--cyan),var(--blue));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  filter:drop-shadow(0 0 14px rgba(34,211,238,.35))}
.k-users .k-value{color:var(--violet)} .k-avg .k-value{color:var(--amber)} .k-count .k-value{color:var(--green)}
.k-ico{position:absolute;right:14px;top:14px;width:40px;height:40px;border-radius:10px;display:flex;
  align-items:center;justify-content:center;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.2)}
.k-ico svg{width:20px;height:20px}
/* ---------- charts ---------- */
.charts{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:16px;margin-bottom:18px}
.chart-card{padding:16px 16px 8px;min-height:300px;display:flex;flex-direction:column}
.chart-title{font-size:13.5px;letter-spacing:2px;color:#b6c4e0;display:flex;align-items:center;gap:8px;margin-bottom:6px}
.chart-title::before{content:'';width:3px;height:14px;border-radius:2px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));box-shadow:0 0 8px var(--cyan)}
.chart{flex:1;min-height:250px}
.chart-fallback{flex:1;display:flex;align-items:center;justify-content:center;color:var(--dim);font-size:13px;text-align:center;line-height:2}
/* ---------- table ---------- */
.table-card{padding:0;overflow:hidden}
.table-head{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid rgba(56,189,248,.12)}
.table-head .chart-title{margin:0}
.table-head .count{margin-left:auto;font-size:12px;color:var(--dim)}
.table-head .count b{color:var(--cyan);font-weight:600}
.tbl-scroll{max-height:520px;overflow:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
thead th{position:sticky;top:0;z-index:2;background:rgba(8,15,34,.96);backdrop-filter:blur(8px);
  color:#9fb2d8;font-weight:600;font-size:12px;letter-spacing:1.5px;padding:12px 14px;text-align:left;
  border-bottom:1px solid rgba(56,189,248,.2);white-space:nowrap}
th.num,td.num{text-align:right}
th.sortable{cursor:pointer;user-select:none;transition:.15s}
th.sortable:hover{color:var(--cyan)}
th .arrow{font-size:9px;margin-left:3px;opacity:.9}
tbody td{padding:11px 14px;border-bottom:1px solid rgba(148,163,184,.07);white-space:nowrap}
tbody tr{transition:.15s}
tbody tr:hover{background:rgba(34,211,238,.055)}
tbody tr:hover td:first-child{box-shadow:inset 2px 0 0 var(--cyan)}
.td-name{color:#dbe7ff;max-width:300px;overflow:hidden;text-overflow:ellipsis}
.td-user{color:#a5b4fc}
.td-price{color:var(--amber);font-weight:600}
.td-amount{color:var(--cyan);font-weight:700;text-shadow:0 0 12px rgba(34,211,238,.4)}
.td-amount.na,.td-price.na{color:#475569;font-weight:400}
.td-sup{color:var(--dim)}
.tag{display:inline-block;font-size:11px;padding:3px 9px;border-radius:20px;border:1px solid;letter-spacing:.5px}
.diff-up{color:var(--red);font-size:11px;font-weight:600}
.diff-down{color:var(--green);font-size:11px;font-weight:600}
.diff-flat{color:var(--dim);font-size:11px}
.tfoot td{padding:14px;font-weight:700;background:rgba(34,211,238,.06);border-top:1px solid rgba(56,189,248,.3)}
.tfoot .sum-label{color:#9fb2d8;letter-spacing:2px;font-size:13px}
.tfoot .sum-val{color:var(--cyan);font-size:17px;text-shadow:0 0 12px rgba(34,211,238,.5)}
.empty{padding:50px;text-align:center;color:var(--dim);font-size:13px;letter-spacing:2px}
/* ---------- editable cell ---------- */
td[contenteditable="true"]{cursor:text;outline:none}
td[contenteditable="true"]:focus{background:rgba(34,211,238,.1);box-shadow:inset 0 0 0 1.5px var(--cyan)}
td.dirty{background:rgba(251,191,36,.08)!important}
/* ---------- tabs ---------- */
.tabs{display:flex;gap:4px;margin-bottom:18px;flex-wrap:wrap}
.tab{padding:10px 22px;border-radius:9px 9px 0 0;border:1px solid rgba(56,189,248,.12);
  border-bottom:none;cursor:pointer;font-size:13px;color:var(--dim);transition:.2s;
  background:rgba(13,22,44,.4);letter-spacing:1px;font-family:inherit}
.tab:hover{color:var(--cyan)}
.tab.active{color:var(--cyan);border-color:var(--cyan);background:var(--card);
  box-shadow:0 -4px 16px rgba(34,211,238,.15)}
.tab-panel{display:none}
.tab-panel.active{display:block}
/* ---------- modal ---------- */
.modal-overlay{position:fixed;inset:0;background:rgba(2,8,26,.75);z-index:100;display:none;
  align-items:center;justify-content:center;backdrop-filter:blur(6px)}
.modal-overlay.show{display:flex}
.modal{background:var(--card);border:1px solid var(--card-border);border-radius:14px;
  padding:28px;width:460px;max-width:92vw;max-height:88vh;overflow:auto;position:relative}
.modal h3{font-size:16px;letter-spacing:2px;margin-bottom:18px;color:var(--cyan)}
.modal-close{position:absolute;right:16px;top:14px;font-size:22px;color:var(--dim);cursor:pointer;
  background:none;border:none;line-height:1}
.modal-close:hover{color:var(--text)}
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:12px;color:var(--dim);margin-bottom:5px;letter-spacing:1px}
.checkbox-group{display:flex;flex-wrap:wrap;gap:10px}
.checkbox-item{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text);
  padding:6px 12px;border:1px solid rgba(56,189,248,.15);border-radius:8px;cursor:pointer}
.checkbox-item input{accent-color:var(--cyan)}
.checkbox-item:has(input:checked){border-color:var(--cyan);background:rgba(34,211,238,.08)}
/* ---------- toast ---------- */
.toast{position:fixed;top:20px;right:20px;z-index:200;padding:12px 20px;border-radius:9px;
  font-size:13px;backdrop-filter:blur(8px);transform:translateX(420px);transition:transform .3s}
.toast.show{transform:translateX(0)}
.toast.success{background:rgba(52,211,153,.15);border:1px solid var(--green);color:var(--green)}
.toast.error{background:rgba(248,113,113,.15);border:1px solid var(--red);color:var(--red)}
.toast.info{background:rgba(34,211,238,.15);border:1px solid var(--cyan);color:var(--cyan)}
/* ---------- login ---------- */
.login-center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:400px;max-width:92vw;padding:40px 36px;text-align:center}
.login-card .logo{width:64px;height:64px;margin:0 auto 16px}
.login-card h1{font-size:22px;margin-bottom:4px}
.login-card .subtitle{margin-bottom:28px}
.login-card .form-row{text-align:left}
.login-card .btn{width:100%;padding:12px;margin-top:8px}
/* ---------- scrollbar ---------- */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:rgba(56,189,248,.25);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:rgba(56,189,248,.45)}
::-webkit-scrollbar-track{background:transparent}
/* ---------- topbar ---------- */
.topbar{display:flex;align-items:center;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.topbar .logo{width:40px;height:40px}
.topbar h1{font-size:20px}
.topbar .subtitle{font-size:10px}
.topbar nav{margin-left:24px;display:flex;gap:6px}
.topbar nav a{padding:7px 16px;border-radius:8px;font-size:13px;color:var(--dim);
  text-decoration:none;transition:.2s;border:1px solid transparent}
.topbar nav a:hover{color:var(--cyan)}
.topbar nav a.active{color:var(--cyan);border-color:rgba(34,211,238,.3);background:rgba(34,211,238,.08)}
/* ---------- responsive ---------- */
@media(max-width:1100px){.charts{grid-template-columns:1fr}.kpis{grid-template-columns:repeat(2,1fr)}.filters{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.kpis{grid-template-columns:1fr}.filters{grid-template-columns:1fr}.wrap{padding:16px}}