:root{--ink:#18231f;--muted:#66716c;--line:#dbe2de;--paper:#f5f7f5;--white:#fff;--green:#23624d;--green-soft:#e6f1ec;--red:#a23e35;--amber:#9a681c;--blue:#315e80;--shadow:0 8px 24px rgba(24,35,31,.08)}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",sans-serif;font-size:14px}
button,input,select,textarea{font:inherit}
button{border:1px solid var(--green);background:var(--green);color:#fff;padding:9px 14px;border-radius:6px;font-weight:700;cursor:pointer}
button:hover{filter:brightness(.96)}
button.secondary,.secondary{border-color:var(--line);background:#fff;color:var(--ink)}
.admin-topbar{position:sticky;top:0;z-index:20;height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:#fff;border-bottom:1px solid var(--line)}
.admin-topbar>div{display:flex;align-items:baseline;gap:10px}.admin-topbar strong{font-size:17px}.admin-topbar span{color:var(--muted)}
.admin-topbar nav{display:flex;align-items:center;gap:10px}.admin-topbar a{color:var(--green);font-weight:700;text-decoration:none}
.admin-topbar nav button{padding:7px 11px;background:#fff;color:var(--ink);border-color:var(--line)}
.admin-shell{width:min(1280px,calc(100% - 32px));margin:28px auto 64px}
.login-panel{width:min(460px,100%);margin:100px auto;padding:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.login-panel h1{margin:0 0 8px;font-size:24px}.login-panel p{color:var(--muted)}.login-panel form{display:flex;gap:8px}
.login-panel input{flex:1;min-width:0}.login-panel small{display:block;min-height:20px;margin-top:10px;color:var(--red)}
input,select,textarea{width:100%;padding:9px 10px;border:1px solid #cbd5d0;border-radius:6px;background:#fff;color:var(--ink);outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(35,98,77,.12)}
.page-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}.page-heading p{margin:0;color:var(--green);font-size:11px;font-weight:800}.page-heading h1{margin:3px 0 0;font-size:28px}.page-heading span{color:var(--muted);font-size:12px}
.summary-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin-bottom:18px}
.summary-item{padding:15px 16px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--green)}
.summary-item small{display:block;color:var(--muted)}.summary-item strong{display:block;margin-top:5px;font-size:25px}
.admin-section{margin-top:14px;padding:18px;background:#fff;border:1px solid var(--line)}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.section-title h2{margin:0;font-size:18px}.section-title p{margin:4px 0 0;color:var(--muted);font-size:12px}
.inline-form{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0 0 16px;padding:14px;background:#f8faf8;border:1px solid var(--line)}
label{display:flex;flex-direction:column;gap:6px;color:#38453f;font-size:12px;font-weight:700}label small{color:var(--muted);font-weight:400}
.form-actions{display:flex;align-items:end;gap:8px}
.table-wrap{overflow:auto;border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;white-space:nowrap}th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{background:#f2f5f3;color:#53615b;font-size:11px;text-transform:uppercase}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:#fafcfb}
td small{display:block;color:var(--muted)}.table-action{padding:5px 8px;background:#fff;color:var(--green);border-color:#b9c9c2;font-size:12px}.table-action.danger{color:var(--red);border-color:#dabbb8}
.badge{display:inline-flex;align-items:center;padding:3px 7px;border-radius:4px;background:#edf1ef;color:#53615b;font-size:11px;font-weight:800}.badge.active{background:var(--green-soft);color:var(--green)}.badge.trial{background:#e8f0f6;color:var(--blue)}.badge.soon{background:#fff0d8;color:var(--amber)}.badge.expired,.badge.disabled{background:#f7e7e5;color:var(--red)}
.code-cell{display:flex;align-items:center;gap:6px}.code-cell code{font-size:13px;font-weight:800}.copy-button{padding:4px 6px;background:#fff;color:var(--green);border-color:var(--line)}
.filters{display:grid;grid-template-columns:minmax(240px,1fr) 200px 180px;gap:8px;margin-bottom:12px}
.permission-pills{display:flex;gap:4px}.permission-pills span{padding:2px 5px;border-radius:3px;background:#edf1ef;color:#87918d;font-size:10px;font-weight:800}.permission-pills span.on{background:var(--green-soft);color:var(--green)}
dialog{width:min(680px,calc(100% - 28px));padding:0;border:0;border-radius:7px;box-shadow:0 24px 70px rgba(20,32,27,.3)}dialog::backdrop{background:rgba(16,25,21,.54)}
dialog form{padding:22px}dialog header,dialog footer{display:flex;align-items:center;justify-content:space-between}dialog header{margin-bottom:18px}dialog header small{color:var(--muted)}dialog h2{margin:2px 0 0}.icon-button{width:34px;height:34px;padding:0;border-color:var(--line);background:#fff;color:var(--ink);font-size:22px}.dialog-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.permission-row{display:flex;flex-wrap:wrap;gap:16px;margin:18px 0}.permission-row label{flex-direction:row;align-items:center}.permission-row input{width:auto}dialog footer{justify-content:flex-end;gap:8px;margin-top:18px}
.qr-dialog{width:min(780px,calc(100% - 28px))}
.qr-dialog>section{padding:22px}.qr-dialog header,.qr-dialog footer{display:flex;align-items:center;justify-content:space-between}.qr-dialog header{margin-bottom:8px}.qr-dialog h2{margin:2px 0 0}.qr-intro{margin:0 0 18px;color:var(--muted);line-height:1.6}
.qr-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.qr-grid article{padding:18px;border:1px solid var(--line);text-align:center}.qr-grid article>span{display:inline-block;padding:3px 7px;border-radius:4px;background:var(--green-soft);color:var(--green);font-size:11px;font-weight:800}.qr-grid h3{margin:8px 0 4px;font-size:18px}.qr-grid img{display:block;width:min(100%,280px);aspect-ratio:1;margin:10px auto;background:#fff}.qr-grid article>small{display:block;margin:4px 0 12px;color:var(--muted)}.qr-grid article>div{display:flex;justify-content:center;gap:7px}.qr-grid article button{padding:7px 10px}.qr-dialog footer{justify-content:flex-end;gap:8px;margin-top:18px}
.toast{position:fixed;right:20px;bottom:20px;z-index:50;max-width:360px;padding:11px 15px;border-radius:6px;background:#20322b;color:#fff;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}
.empty{padding:24px;text-align:center;color:var(--muted)}
@media(max-width:900px){.summary-grid{grid-template-columns:repeat(3,1fr)}.inline-form{grid-template-columns:1fr 1fr}.filters{grid-template-columns:1fr 1fr}.filters input{grid-column:1/-1}}
@media(max-width:600px){.admin-topbar{padding:0 14px}.admin-topbar span{display:none}.admin-shell{width:min(100% - 18px,1280px);margin-top:16px}.summary-grid{grid-template-columns:1fr 1fr}.inline-form,.dialog-grid,.qr-grid{grid-template-columns:1fr}.filters{grid-template-columns:1fr}.filters input{grid-column:auto}.section-title{align-items:flex-start}.admin-section{padding:12px}.login-panel{margin-top:50px}.login-panel form{flex-direction:column}.qr-dialog>section{padding:15px}.qr-grid img{width:min(100%,230px)}}