:root{
  --bg:#0f1115; --panel:#1a1d24; --panel2:#21252e; --border:#2b303b;
  --txt:#e6e9ef; --muted:#9aa3b2; --pri:#4f7cff; --pri-d:#3b63d6;
  --ok:#2fbf71; --warn:#e0a83c; --err:#e5484d; --chip:#2a2f3a;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--txt);font-size:14px;line-height:1.6}
a{color:var(--pri);text-decoration:none}
a:hover{text-decoration:underline}
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:18px 0;flex-shrink:0}
.brand{font-weight:700;font-size:16px;padding:0 20px 16px;border-bottom:1px solid var(--border);margin-bottom:10px}
.brand small{display:block;color:var(--muted);font-weight:400;font-size:12px}
.nav a{display:block;padding:10px 20px;color:var(--muted);border-left:3px solid transparent}
.nav a:hover{background:var(--panel2);color:var(--txt);text-decoration:none}
.nav a.active{color:var(--txt);border-left-color:var(--pri);background:var(--panel2)}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:56px;border-bottom:1px solid var(--border);display:flex;align-items:center;
  justify-content:space-between;padding:0 24px;background:var(--panel)}
.topbar .user{color:var(--muted)}
.content{padding:24px;max-width:1100px;width:100%}
h1{font-size:20px;margin:0 0 18px}
h2{font-size:16px;margin:24px 0 12px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:18px;margin-bottom:16px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:820px){.grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}.sidebar{display:none}}
.stat{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px}
.stat .n{font-size:24px;font-weight:700}
.stat .l{color:var(--muted);font-size:12px;margin-top:4px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}
tr:hover td{background:var(--panel2)}
.muted{color:var(--muted)}
.mono{font-family:"SFMono-Regular",Consolas,Menlo,monospace}
.chip{display:inline-block;padding:2px 8px;border-radius:20px;background:var(--chip);font-size:12px}
.badge{display:inline-block;padding:2px 10px;border-radius:6px;font-size:12px;font-weight:600}
.badge.ok{background:rgba(47,191,113,.15);color:var(--ok)}
.badge.warn{background:rgba(224,168,60,.15);color:var(--warn)}
.badge.err{background:rgba(229,72,77,.15);color:var(--err)}
.badge.info{background:rgba(79,124,255,.15);color:var(--pri)}
.btn{display:inline-block;padding:8px 14px;border-radius:8px;border:1px solid var(--border);
  background:var(--panel2);color:var(--txt);cursor:pointer;font-size:13px}
.btn:hover{border-color:var(--pri);text-decoration:none}
.btn.primary{background:var(--pri);border-color:var(--pri);color:#fff}
.btn.primary:hover{background:var(--pri-d)}
.btn.danger{background:transparent;border-color:var(--err);color:var(--err)}
.btn.sm{padding:5px 10px;font-size:12px}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
input,select,textarea{width:100%;padding:9px 11px;background:var(--bg);border:1px solid var(--border);
  border-radius:8px;color:var(--txt);font-size:14px;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--pri)}
/* 让日期/时间选择器图标在深色底上可见 */
input[type=datetime-local]::-webkit-calendar-picker-indicator,
input[type=date]::-webkit-calendar-picker-indicator,
input[type=time]::-webkit-calendar-picker-indicator{filter:invert(0.85);cursor:pointer;opacity:.9}
input[type=datetime-local]::-webkit-calendar-picker-indicator:hover,
input[type=date]::-webkit-calendar-picker-indicator:hover{opacity:1}
textarea{min-height:120px;resize:vertical}
label{display:block;margin:0 0 6px;color:var(--muted);font-size:13px}
.field{margin-bottom:14px}
.inline{display:inline-block;width:auto}
.form-narrow{max-width:420px}
.alert{padding:11px 14px;border-radius:8px;margin-bottom:16px;font-size:13px}
.alert.ok{background:rgba(47,191,113,.12);border:1px solid var(--ok);color:#a7e8c6}
.alert.err{background:rgba(229,72,77,.12);border:1px solid var(--err);color:#f3b3b5}
.kv{display:grid;grid-template-columns:130px 1fr;gap:8px 14px}
.kv dt{color:var(--muted)}
.kv dd{margin:0;word-break:break-all}
.server-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px;display:flex;
  flex-direction:column;gap:8px}
.server-card .ip{font-size:18px;font-weight:700;font-family:monospace}
.captcha-row{display:flex;gap:10px;align-items:stretch}
.captcha-row img{height:42px;border-radius:8px;border:1px solid var(--border);cursor:pointer}
.auth-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.auth-box{width:100%;max-width:380px}
.auth-box .card{padding:26px}
.pagination{display:flex;gap:4px;list-style:none;padding:0;margin:16px 0 0;flex-wrap:wrap;align-items:center}
.pagination a,.pagination span{padding:6px 11px;border:1px solid var(--border);border-radius:7px;font-size:13px;line-height:1.2;color:var(--txt);background:var(--panel2)}
.pagination a{color:var(--pri)}
.pagination a:hover{border-color:var(--pri);text-decoration:none}
.pagination .current{background:var(--pri);border-color:var(--pri);color:#fff;font-weight:600}
.pagination .disabled{color:var(--muted);opacity:.5;cursor:not-allowed;background:transparent}
.pre-log{background:#0b0d11;border:1px solid var(--border);border-radius:8px;padding:14px;
  overflow:auto;max-height:560px;font-family:monospace;font-size:12px;white-space:pre-wrap;word-break:break-all}
.toolbar{display:flex;gap:10px;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--pri);
  border-radius:50%;animation:spin .7s linear infinite;vertical-align:-2px}
@keyframes spin{to{transform:rotate(360deg)}}
.op-status{margin-top:8px;font-size:13px;min-height:18px;word-break:break-all;color:var(--muted)}
.op-status .ok{color:var(--ok);font-weight:700;margin-right:4px}
.op-status .err{color:var(--err);font-weight:700;margin-right:4px}