:root{
  --blue:#2857A4; --blue-l:#4F8BE6; --blue-glow:#3a72d6;
  --orange:#FF8C00; --orange-l:#FFB347;
  --bg0:#070b18; --bg1:#0b1226;
  --txt:#eaf0ff; --txt-dim:#9fb0d4; --txt-mut:#6b7ba3;
  --glass:rgba(255,255,255,.055);
  --glass-brd:rgba(255,255,255,.10);
  --glass-hi:rgba(255,255,255,.16);
  --r:22px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font); color:var(--txt);
  background:var(--bg0); min-height:100vh; overflow-x:hidden;
  -webkit-font-smoothing:antialiased; letter-spacing:.2px;
}

/* ---------- 动态网格渐变背景 ---------- */
.mesh{position:fixed; inset:0; z-index:-1; overflow:hidden;
  background:radial-gradient(1200px 800px at 80% -10%,rgba(40,87,164,.35),transparent 60%),
             radial-gradient(900px 700px at 0% 110%,rgba(255,140,0,.18),transparent 55%),
             linear-gradient(160deg,#070b18,#0b1226 60%,#070d1c);}
.blob{position:absolute; border-radius:50%; filter:blur(80px); opacity:.5; mix-blend-mode:screen;
  animation:float 22s ease-in-out infinite;}
.b1{width:520px;height:520px;background:var(--blue-glow);top:-120px;left:-80px;animation-delay:0s}
.b2{width:460px;height:460px;background:var(--orange);bottom:-140px;right:-60px;animation-delay:-6s;opacity:.35}
.b3{width:380px;height:380px;background:#6a3bd6;top:40%;left:55%;animation-delay:-12s;opacity:.3}
.b4{width:300px;height:300px;background:var(--blue-l);top:10%;right:18%;animation-delay:-9s;opacity:.32}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(60px,40px) scale(1.12)}66%{transform:translate(-40px,30px) scale(.92)}}
.grid-overlay{position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:54px 54px;mask:radial-gradient(circle at 50% 30%,#000,transparent 80%);}

/* ---------- 玻璃通用 ---------- */
.glass{background:var(--glass); border:1px solid var(--glass-brd); backdrop-filter:blur(26px) saturate(160%);
  -webkit-backdrop-filter:blur(26px) saturate(160%); border-radius:var(--r);
  box-shadow:0 18px 50px rgba(0,0,0,.45), inset 0 1px 0 var(--glass-hi);}

main{max-width:1180px; margin:0 auto; padding:0 22px 60px; display:flex; flex-direction:column; gap:22px}

/* ---------- 顶栏 ---------- */
.nav{position:sticky; top:14px; z-index:50; margin:14px auto 6px; max-width:1180px;
  display:flex; align-items:center; justify-content:space-between; padding:14px 22px;}
.brand{display:flex; align-items:center; gap:14px}
.logo{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,140,0,.18),rgba(40,87,164,.28));border:1px solid var(--glass-hi)}
.brand-txt h1{font-size:18px;font-weight:700;letter-spacing:.3px}
.brand-txt p{font-size:12px;color:var(--txt-dim);margin-top:2px}
.nav-right{display:flex;align-items:center;gap:14px}
.model-pill{font-size:12.5px;color:#cfe0ff;padding:7px 13px;border-radius:999px;
  background:rgba(40,87,164,.25);border:1px solid rgba(79,139,230,.35);white-space:nowrap}
.model-pill::first-letter{color:#3be07a}
.clock{font-variant-numeric:tabular-nums;font-size:13px;color:var(--txt-dim);min-width:74px}
.admin-link{font-size:13px;color:var(--txt);text-decoration:none;padding:8px 14px;border-radius:12px;
  background:linear-gradient(135deg,var(--orange),#ff7a00);font-weight:600;box-shadow:0 6px 18px rgba(255,140,0,.35);transition:.25s}
.admin-link:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,140,0,.5)}

/* ---------- HERO ---------- */
.hero{padding:30px 34px 26px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,140,0,.35),transparent 70%);filter:blur(20px)}
.hero-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.hero-label{font-size:13.5px;color:var(--txt-dim);letter-spacing:.5px}
.hero-range{font-size:12.5px;color:var(--txt-mut);font-variant-numeric:tabular-nums}
.hero-number{display:flex;align-items:baseline;gap:12px;margin:8px 0 22px}
.big{font-size:clamp(46px,8vw,84px);font-weight:800;line-height:1;letter-spacing:-1.5px;font-variant-numeric:tabular-nums;
  background:linear-gradient(100deg,#fff 10%,var(--orange-l) 45%,var(--blue-l) 95%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-shadow:0 0 60px rgba(255,140,0,.25)}
.unit{font-size:20px;color:var(--txt-mut);font-weight:600}
.hero-stats{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:18px}
.hstat{background:rgba(255,255,255,.04);border:1px solid var(--glass-brd);border-radius:14px;padding:13px 14px;transition:.25s}
.hstat:hover{background:rgba(255,255,255,.07);transform:translateY(-3px)}
.hstat label{display:block;font-size:11.5px;color:var(--txt-mut);margin-bottom:7px}
.hstat b{font-size:19px;font-weight:700;font-variant-numeric:tabular-nums}
.hstat b.up{color:#3be07a}.hstat b.down{color:#ff6b6b}
.kpi-mini{display:flex;gap:24px;font-size:13px;color:var(--txt-dim)}
.kpi-mini b{color:var(--txt);font-size:15px;margin-left:4px}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;vertical-align:middle}
.dot.blue{background:var(--blue-l);box-shadow:0 0 10px var(--blue-l)}
.dot.orange{background:var(--orange);box-shadow:0 0 10px var(--orange)}

/* ---------- 控制栏 ---------- */
.controls{display:flex;align-items:center;gap:26px;padding:16px 22px;flex-wrap:wrap}
.ctrl-group{display:flex;align-items:center;gap:10px}
.ctrl-group.right{margin-left:auto}
.ctrl-label{font-size:12.5px;color:var(--txt-mut)}
.seg{display:flex;background:rgba(0,0,0,.25);border-radius:12px;padding:4px;border:1px solid var(--glass-brd)}
.seg button{border:none;background:none;color:var(--txt-dim);padding:7px 16px;border-radius:9px;cursor:pointer;font-size:13px;font-weight:600;transition:.22s;font-family:var(--font)}
.seg button.active{background:linear-gradient(135deg,var(--blue),var(--blue-l));color:#fff;box-shadow:0 4px 14px rgba(40,87,164,.5)}
.select-wrap{position:relative}
.select-wrap::after{content:"▾";position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--txt-mut);pointer-events:none;font-size:11px}
select,input[type=date]{font-family:var(--font);background:rgba(0,0,0,.28);color:var(--txt);border:1px solid var(--glass-brd);
  border-radius:11px;padding:9px 32px 9px 13px;font-size:13px;cursor:pointer;outline:none;transition:.2s;color-scheme:dark}
input[type=date]{padding:9px 11px}
select:hover,input:hover,select:focus,input:focus{border-color:var(--blue-l)}
.dash{color:var(--txt-mut)}
.ghost-btn{background:rgba(255,255,255,.06);border:1px solid var(--glass-brd);color:var(--txt-dim);padding:9px 14px;border-radius:11px;cursor:pointer;font-size:12.5px;font-family:var(--font);transition:.2s}
.ghost-btn:hover{color:var(--txt);border-color:var(--orange)}

/* ---------- 卡片 ---------- */
.card{padding:22px 24px}
.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:8px}
.card-head h2{font-size:16px;font-weight:700}
.card-head h2 .sub,.sub{font-size:12px;color:var(--txt-mut);font-weight:500;margin-left:8px}
.legend{display:flex;gap:16px;font-size:12px;color:var(--txt-dim)}
.legend i,.sw{display:inline-block;width:11px;height:11px;border-radius:3px;margin-right:5px;vertical-align:middle}
.sw.blue{background:var(--blue-l)}.sw.orange{background:var(--orange)}
.sw.line{width:16px;height:3px;border-radius:2px;background:#fff}
.chart-box{position:relative;height:300px}
.chart-box.tall{height:330px}
.chart-box.donut{height:230px}
.grid-2{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}

/* ---------- 排行榜 ---------- */
.leaderboard{display:flex;flex-direction:column;gap:15px}
.lb-row{display:flex;align-items:center;gap:14px}
.lb-rank{width:22px;font-size:13px;color:var(--txt-mut);font-weight:700;text-align:center}
.lb-av{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:14px;font-weight:700;color:#fff;flex:0 0 auto;box-shadow:0 4px 12px rgba(0,0,0,.3)}
.lb-body{flex:1;min-width:0}
.lb-top{display:flex;justify-content:space-between;font-size:13.5px;margin-bottom:6px}
.lb-name{font-weight:600}
.lb-val{color:var(--txt-dim);font-variant-numeric:tabular-nums}
.lb-bar{height:8px;border-radius:99px;background:rgba(255,255,255,.07);overflow:hidden}
.lb-fill{height:100%;border-radius:99px;width:0;transition:width 1.1s cubic-bezier(.2,.8,.2,1)}
.lb-share{font-size:11.5px;color:var(--txt-mut);margin-left:6px}

/* ---------- 环图 ---------- */
.donut-wrap{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.donut-wrap .chart-box{flex:1;min-width:200px}
.donut-legend{display:flex;flex-direction:column;gap:9px;font-size:12.5px;min-width:130px}
.donut-legend .dl{display:flex;align-items:center;gap:8px;color:var(--txt-dim)}
.donut-legend .dl b{margin-left:auto;color:var(--txt);font-variant-numeric:tabular-nums}
.donut-legend i{width:10px;height:10px;border-radius:3px}

/* ---------- 页脚 ---------- */
.foot{display:flex;justify-content:space-between;font-size:12px;color:var(--txt-mut);padding:8px 6px;flex-wrap:wrap;gap:6px}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);animation:rise .7s cubic-bezier(.2,.8,.2,1) forwards}
.reveal:nth-child(2){animation-delay:.08s}.reveal:nth-child(3){animation-delay:.16s}
.reveal:nth-child(4){animation-delay:.24s}.reveal:nth-child(5){animation-delay:.32s}.reveal:nth-child(6){animation-delay:.4s}
@keyframes rise{to{opacity:1;transform:none}}

/* ---------- 响应式 ---------- */
@media(max-width:880px){
  .hero-stats{grid-template-columns:repeat(3,1fr)}
  .grid-2{grid-template-columns:1fr}
  .controls{gap:16px}.ctrl-group.right{margin-left:0;width:100%}
  .nav .brand-txt p{display:none}
}
@media(max-width:520px){.hero-stats{grid-template-columns:repeat(2,1fr)}.clock{display:none}}

/* ---------- 管理后台 ---------- */
.admin-wrap{max-width:920px;margin:0 auto;padding:0 22px 60px;display:flex;flex-direction:column;gap:22px}
.login-card{max-width:420px;margin:60px auto;padding:34px;text-align:center}
.login-card h2{font-size:20px;margin-bottom:8px}
.login-card p{color:var(--txt-dim);font-size:13px;margin-bottom:22px}
.field{display:flex;flex-direction:column;gap:8px;text-align:left;margin-bottom:16px}
.field label{font-size:12.5px;color:var(--txt-dim)}
.field input{padding:12px 14px;border-radius:12px;background:rgba(0,0,0,.3);border:1px solid var(--glass-brd);color:var(--txt);font-size:14px;font-family:var(--font);width:100%;outline:none}
.field input:focus{border-color:var(--blue-l)}
.btn-primary{width:100%;padding:13px;border:none;border-radius:13px;font-size:15px;font-weight:700;cursor:pointer;color:#fff;font-family:var(--font);
  background:linear-gradient(135deg,var(--blue),var(--blue-l));box-shadow:0 8px 22px rgba(40,87,164,.5);transition:.25s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(40,87,164,.6)}
.btn-orange{background:linear-gradient(135deg,var(--orange),#ff7a00);box-shadow:0 8px 22px rgba(255,140,0,.4)}
.btn-orange:hover{box-shadow:0 12px 30px rgba(255,140,0,.55)}
.create-row{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.create-row .field{flex:1;min-width:180px;margin-bottom:0}
.create-row .btn-primary{width:auto;padding:12px 26px}
.keys-table{width:100%;border-collapse:collapse;font-size:13.5px}
.keys-table th{text-align:left;color:var(--txt-mut);font-weight:600;font-size:12px;padding:10px 12px;border-bottom:1px solid var(--glass-brd)}
.keys-table td{padding:13px 12px;border-bottom:1px solid rgba(255,255,255,.05);vertical-align:middle}
.keys-table tr:hover td{background:rgba(255,255,255,.03)}
.kcode{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;color:var(--orange-l)}
.tag{font-size:11px;padding:3px 9px;border-radius:99px}
.tag.on{background:rgba(59,224,122,.15);color:#3be07a}.tag.off{background:rgba(255,107,107,.15);color:#ff6b6b}
.mini-btn{font-size:11.5px;padding:5px 11px;border-radius:9px;border:1px solid var(--glass-brd);background:rgba(255,255,255,.05);color:var(--txt-dim);cursor:pointer;font-family:var(--font);transition:.2s;margin-left:6px}
.mini-btn:hover{color:var(--txt);border-color:var(--orange)}
.mini-btn.danger:hover{border-color:#ff6b6b;color:#ff6b6b}
.new-key-banner{background:linear-gradient(135deg,rgba(255,140,0,.16),rgba(40,87,164,.16));border:1px solid var(--glass-hi);border-radius:14px;padding:16px 18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;animation:rise .5s}
.new-key-banner .kcode{font-size:14px;flex:1;word-break:break-all}
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);background:rgba(20,28,52,.95);border:1px solid var(--glass-hi);padding:12px 22px;border-radius:13px;font-size:13.5px;opacity:0;transition:.3s;backdrop-filter:blur(20px);z-index:99}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.back-link{font-size:13px;color:var(--txt-dim);text-decoration:none}.back-link:hover{color:var(--txt)}