:root{
  --blue:#165DFF; --blue-dark:#0E42B6; --blue-soft:#EAF1FF; --white:#fff;
  --text:#1f2937; --muted:#6b7280; --border:#dbe3f3; --success:#d1fae5;
  --success-text:#065f46; --danger:#fee2e2; --danger-text:#991b1b;
  --shadow:0 12px 28px rgba(22,93,255,.10);
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(180deg,#fff 0%,#f6f9ff 100%);color:var(--text)}
.container{width:min(1180px,calc(100% - 32px));margin:0 auto}
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:20px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--text)}
.brand-logo{width:58px;height:58px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:var(--shadow);padding:4px}
.brand strong{display:block;font-size:22px;color:var(--blue-dark)}
.brand-domain{display:block;font-size:12px;color:var(--muted)}
.main-nav{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.main-nav a{color:var(--text);text-decoration:none;padding:10px 14px;border-radius:12px}
.main-nav a:hover{background:var(--blue-soft);color:var(--blue-dark)}
.page{padding:28px 0 42px}
.site-footer{border-top:1px solid var(--border);padding:20px 0;background:#fff;margin-top:40px}
.footer-inner{display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:14px}
.hero,.card,.stat-card,.panel{background:#fff;border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow)}
.hero{padding:28px;display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:24px}
.hero h1{margin:0 0 8px;font-size:34px;color:var(--blue-dark)}
.hero p{margin:0;color:var(--muted);max-width:720px;line-height:1.5}
.hero-logo{width:110px;height:110px;object-fit:contain}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.stat-card{padding:22px}
.stat-card .label{color:var(--muted);font-size:14px;margin-bottom:8px}
.stat-card .value{font-size:34px;font-weight:700;color:var(--blue-dark)}
.card,.panel{padding:24px}
.card-title,.panel-title{margin:0 0 18px;font-size:22px;color:var(--blue-dark)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--blue);color:#fff;text-decoration:none;border:none;padding:12px 16px;border-radius:14px;cursor:pointer;font-weight:700}
.btn:hover{background:var(--blue-dark)}
.btn-sm{padding:9px 12px;border-radius:12px;font-size:14px}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:14px 12px;border-bottom:1px solid #edf1f8;text-align:left;vertical-align:top}
th{font-size:13px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);background:#f9fbff}
form .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
label{display:block;margin-bottom:6px;font-weight:700;color:#334155}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:14px;background:#fff;font:inherit}
textarea{min-height:110px;resize:vertical}
.form-actions{margin-top:20px;display:flex;gap:10px;flex-wrap:wrap}
.alert{padding:14px 16px;border-radius:16px;margin-bottom:18px}
.alert-success{background:var(--success);color:var(--success-text)}
.alert-danger{background:var(--danger);color:var(--danger-text)}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:30px}
.login-card{width:min(520px,100%);background:#fff;border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow);padding:28px}
.login-head{text-align:center;margin-bottom:20px}
.login-logo{width:96px;height:96px;object-fit:contain;margin-bottom:12px}
.badge{display:inline-flex;padding:6px 10px;background:var(--blue-soft);color:var(--blue-dark);border-radius:999px;font-size:12px;font-weight:700}
.qr-box{display:flex;flex-direction:column;align-items:center;gap:10px;padding:20px;border:1px dashed var(--border);border-radius:18px;background:#fbfdff}
.small{font-size:13px;color:var(--muted)}
@media (max-width:760px){.topbar,.hero,.footer-inner{flex-direction:column;align-items:flex-start}.hero h1{font-size:28px}}