:root{
  --bg:#f5f6f8; --card:#fff; --border:#e3e6ea; --text:#1f2329; --muted:#8a9099;
  --primary:#2f6fed; --primary-d:#2456c4; --danger:#d83b3b; --warn:#e8902a;
  --ok:#20a35c; --shadow:0 1px 3px rgba(20,30,50,.06);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
  font:14px/1.6 -apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
h1{font-size:20px;margin:0 0 16px}h2{font-size:15px;margin:0 0 12px}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}

/* 顶栏 */
.topbar{display:flex;align-items:center;gap:24px;background:var(--card);
  border-bottom:1px solid var(--border);padding:0 24px;height:54px;position:sticky;top:0;z-index:5}
.topbar .brand{font-weight:700}
.topbar nav{display:flex;gap:4px;flex:1}
.topbar nav a{padding:6px 12px;border-radius:6px;color:var(--text)}
.topbar nav a:hover{background:#f0f3f8;text-decoration:none}
.topbar nav a.active{background:#e8effd;color:var(--primary)}
.user-box{display:flex;gap:12px;align-items:center}

.container{max-width:1100px;margin:24px auto;padding:0 20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;
  box-shadow:var(--shadow);padding:18px 20px;margin-bottom:18px}
.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}

/* 表格 */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--border);vertical-align:middle}
th{font-size:12px;color:var(--muted);font-weight:600;background:#fafbfc}
tr:last-child td{border-bottom:none}
.empty{text-align:center;color:var(--muted);padding:28px}
.mono{font-family:Consolas,"SFMono-Regular",Menlo,monospace;font-size:13px}
.small{font-size:12px}.muted{color:var(--muted)}

/* 徽章 */
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.badge-active,.badge-ok{background:#e4f6ec;color:var(--ok)}
.badge-expired{background:#f0f1f3;color:#666}
.badge-revoked,.badge-err{background:#fdeaea;color:var(--danger)}
.badge-disabled{background:#fdf1e1;color:var(--warn)}
.tag{display:inline-block;background:#eef3fe;color:var(--primary);border-radius:5px;
  padding:2px 8px;font-size:12px;margin:2px 4px 2px 0}

/* 按钮 / 表单 */
.btn{display:inline-block;border:1px solid var(--border);background:#fff;color:var(--text);
  padding:7px 14px;border-radius:7px;cursor:pointer;font-size:13px;line-height:1.4}
.btn:hover{text-decoration:none;border-color:#c8cdd4;background:#f7f8fa}
.btn-sm{padding:3px 10px;font-size:12px}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d);border-color:var(--primary-d)}
.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn-danger:hover{background:#bd2f2f}
.btn-warn{background:var(--warn);border-color:var(--warn);color:#fff}
.btn-link{border:none;background:none;color:var(--primary);cursor:pointer;font-size:13px;padding:0}
.inline{display:inline}
.inline-form{display:inline-block;margin-right:16px}
.inline-form input{padding:6px 8px;border:1px solid var(--border);border-radius:6px}

input[type=text],input[type=password],input[type=number],input[type=datetime-local],
select,textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:7px;
  font-size:13px;font-family:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary)}
label{display:block;margin-bottom:14px;font-size:13px;font-weight:600}
label input,label select,label textarea{margin-top:5px;font-weight:400}

/* 布局组件 */
.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.filter-bar{display:flex;gap:10px;align-items:center}
.filter-bar input{max-width:280px}.filter-bar select{width:auto;min-width:130px}
.stat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:18px}
.stat{text-align:center;padding:20px 10px;margin:0}
.stat .num{font-size:30px;font-weight:700}
.stat .label{color:var(--muted);font-size:12px;margin-top:4px}
.stat-active{border-top:3px solid var(--ok)}
.stat-expired{border-top:3px solid #9aa0a8}
.stat-revoked{border-top:3px solid var(--danger)}
.stat-disabled{border-top:3px solid var(--warn)}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.kv th{width:100px;background:none;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px;max-width:760px}
.form-grid .full,.form-grid fieldset,.form-grid .form-actions{grid-column:1/-1}
.form-grid fieldset{border:1px solid var(--border);border-radius:8px;padding:10px 14px;margin:0 0 14px}
.checkbox-grid{display:flex;flex-wrap:wrap;gap:10px}
.check-item{display:flex!important;align-items:center;gap:6px;font-weight:400!important;margin:0!important}
.check-item input{width:auto!important;margin:0!important}
.form-actions{display:flex;gap:10px;margin-top:6px}
.action-card form{margin:6px 0}
.token-box{font-family:Consolas,Menlo,monospace;font-size:11px;word-break:break-all;background:#fafbfc}
.alert{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:13px}
.alert-error{background:#fdeaea;color:var(--danger);border:1px solid #f6cccc}
.alert-ok{background:#e4f6ec;color:var(--ok);border:1px solid #c4ead4}
.pagination{display:flex;gap:12px;align-items:center;margin:6px 0 20px}
.total-hint{color:var(--muted);font-size:12px}

/* 登录页 */
.login-wrap{display:flex;justify-content:center;padding-top:8vh}
.login-card{width:360px}
.login-card h1{font-size:17px;text-align:center;margin-bottom:18px}
.login-card .btn{width:100%;padding:9px}

@media(max-width:860px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .detail-grid,.form-grid{grid-template-columns:1fr}
  .filter-bar{flex-wrap:wrap}
}