* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: #2c2f36;
    background: #f4f5f7;
    line-height: 1.6;
}
a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-weight: 600; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 18px; }

/* 顶部导航 */
.topbar {
    background: #1f2430;
    color: #fff;
}
.topbar .container { display: flex; align-items: center; height: 56px; }
.topbar .logo { font-size: 17px; font-weight: 700; color: #fff; letter-spacing: .5px; }
.topbar .nav { margin-left: auto; display: flex; gap: 18px; align-items: center; }
.topbar .nav a { color: #cfd3dc; font-size: 14px; }
.topbar .nav a:hover { color: #fff; text-decoration: none; }
.topbar .nav a.btn { background: #2f6fed; color: #fff; padding: 6px 14px; border-radius: 5px; }

/* 内容卡片 */
.card {
    background: #fff;
    border: 1px solid #e6e8ec;
    border-radius: 8px;
    padding: 22px;
    margin: 18px 0;
}
.card h2 { margin: 0 0 14px; font-size: 18px; }
.muted { color: #8a909c; }
.row { display: flex; flex-wrap: wrap; gap: 16px; }
.col { flex: 1; min-width: 260px; }

/* 表单 */
label { display: block; margin: 12px 0 6px; font-weight: 500; }
input[type=text], input[type=password], input[type=email], input[type=number], select, textarea {
    width: 100%; padding: 9px 11px; border: 1px solid #d4d7dd; border-radius: 6px;
    font-size: 14px; background: #fff; font-family: inherit;
}
textarea { min-height: 90px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: #2f6fed; }

.btn {
    display: inline-block; cursor: pointer; border: none; border-radius: 6px;
    padding: 9px 18px; font-size: 14px; background: #2f6fed; color: #fff; text-align: center;
}
.btn:hover { background: #245ad1; text-decoration: none; color:#fff; }
.btn.gray { background: #6b7280; }
.btn.gray:hover { background: #565d68; }
.btn.red { background: #d9483b; }
.btn.red:hover { background: #b83a2f; }
.btn.green { background: #1f9d55; }
.btn.green:hover { background: #178046; }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.actions { margin-top: 18px; display: flex; gap: 10px; }

/* 表格 */
table { width: 100%; border-collapse: collapse; background: #fff; font-size: 13.5px; }
th, td { padding: 10px 12px; border-bottom: 1px solid #eceef1; text-align: left; }
th { background: #f7f8fa; font-weight: 600; color: #555; }
tr:hover td { background: #fafbfc; }
.table-wrap { overflow-x: auto; }

/* 状态标签 */
.tag { display: inline-block; padding: 2px 9px; border-radius: 11px; font-size: 12px; }
.tag.pending { background: #fff4e0; color: #b9770b; }
.tag.authorized { background: #e7f7ec; color: #1f9d55; }
.tag.revoked { background: #fdeaea; color: #d9483b; }
.tag.expired { background: #eef0f2; color: #8a909c; }
.tag.on { background: #e7f7ec; color: #1f9d55; }
.tag.off { background: #fdeaea; color: #d9483b; }

/* 后台布局 */
.admin { display: flex; min-height: calc(100vh - 56px); }
.side { width: 210px; background: #232838; color: #cfd3dc; flex-shrink: 0; }
.side .hd { padding: 16px; font-weight: 700; color: #fff; border-bottom: 1px solid #313747; }
.side a { display: block; padding: 11px 16px; color: #b9bfcc; border-left: 3px solid transparent; }
.side a:hover { background: #2c3346; color: #fff; text-decoration: none; }
.side a.active { background: #2c3346; color: #fff; border-left-color: #2f6fed; }
.main { flex: 1; padding: 22px; overflow: auto; }
.main .top { display: flex; align-items: center; margin-bottom: 6px; }
.main .top h1 { font-size: 20px; margin: 0; }
.main .top .right { margin-left: auto; }

/* 统计块 */
.stats { display: flex; flex-wrap: wrap; gap: 14px; }
.stat { background: #fff; border: 1px solid #e6e8ec; border-radius: 8px; padding: 16px 20px; flex: 1; min-width: 150px; }
.stat .n { font-size: 26px; font-weight: 700; color: #1f2430; }
.stat .l { color: #8a909c; font-size: 13px; margin-top: 4px; }

/* 提示 */
.msg { padding: 10px 14px; border-radius: 6px; margin: 12px 0; font-size: 14px; }
.msg.ok { background: #e7f7ec; color: #1f7a45; border: 1px solid #bfe9cd; }
.msg.err { background: #fdeaea; color: #b23b2f; border: 1px solid #f3c9c4; }
.msg.info { background: #eaf1fe; color: #2554b0; border: 1px solid #c8dcfb; }

/* 登录页 */
.login-wrap { max-width: 400px; margin: 70px auto; }
.login-wrap .card { margin: 0; }
.center { text-align: center; }
.code-box {
    background: #0f1115; color: #d6e2ff; padding: 14px; border-radius: 6px;
    font-family: "SFMono-Regular", Consolas, Menlo, monospace; font-size: 12.5px;
    word-break: break-all; white-space: pre-wrap; max-height: 240px; overflow: auto;
}
.kv { display: flex; gap: 10px; margin: 8px 0; align-items: baseline; }
.kv .k { width: 110px; color: #8a909c; flex-shrink: 0; }
.pager { margin-top: 14px; display: flex; gap: 8px; }
.pager a, .pager span { padding: 5px 11px; border: 1px solid #d4d7dd; border-radius: 5px; color: #555; }
.pager a:hover { text-decoration: none; border-color: #2f6fed; color: #2f6fed; }
.pager .cur { background: #2f6fed; color: #fff; border-color: #2f6fed; }
.foot { text-align: center; color: #9aa0ab; padding: 24px; font-size: 13px; }
.docs pre { background:#0f1115; color:#d6e2ff; padding:14px; border-radius:6px; overflow:auto; font-size:12.5px; }
.docs code { background:#eef0f3; padding:1px 5px; border-radius:4px; font-size:12.5px; }
.docs h3 { margin-top: 26px; border-left: 3px solid #2f6fed; padding-left: 10px; }