:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --bg: #f6f8fb;
    --card: #fff;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
}
body.center { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }

.layout { display: flex; min-height: 100vh; }
.side {
    width: 190px; flex: 0 0 190px; background: #fff; border-right: 1px solid var(--border);
    padding: 18px 12px; display: flex; flex-direction: column;
}
.brand { font-weight: 700; font-size: 15px; margin-bottom: 16px; color: var(--primary); }
.side .nav {
    display: block; padding: 9px 12px; margin-bottom: 4px; border-radius: 8px;
    color: var(--text); text-decoration: none; font-size: 14px;
}
.side .nav:hover { background: #f1f5f9; }
.side .nav.on { background: var(--primary); color: #fff; }
.side-foot { margin-top: auto; font-size: 13px; padding-top: 12px; border-top: 1px solid var(--border); }
.side-foot a { color: var(--muted); text-decoration: none; }

.main { flex: 1; padding: 24px 28px 60px; max-width: 1100px; }
h2 { font-size: 20px; margin: 0 0 16px; }
h3 { font-size: 16px; margin: 22px 0 10px; }
hr { border: 0; border-top: 1px solid var(--border); margin: 28px 0; }

fieldset {
    background: var(--card); border: 1px solid var(--border); border-radius: 12px;
    padding: 16px 18px; margin-bottom: 16px;
}
legend { font-weight: 700; font-size: 14px; color: var(--primary); padding: 0 6px; }

label { display: block; font-weight: 600; margin: 10px 0 5px; font-size: 13px; }
input[type=text], input[type=password], input[type=number], select, textarea {
    width: 100%; max-width: 460px; padding: 8px 10px; border: 1px solid var(--border);
    border-radius: 8px; font-size: 14px; font-family: inherit; background: #fff; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
input[type=file] { margin: 6px 0; font-size: 13px; }

.switch { display: flex; align-items: center; gap: 8px; font-weight: 600; margin: 6px 0; }
.switch input { width: 18px; height: 18px; }
.row { display: flex; flex-wrap: wrap; gap: 14px; }
.row > div { flex: 1; min-width: 180px; }

.btn {
    padding: 9px 18px; border: 1px solid var(--border); background: #fff; border-radius: 8px;
    cursor: pointer; font-size: 14px; font-weight: 600; color: var(--text); margin-top: 10px;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); color: #fff; }
.btn.danger { color: #dc2626; border-color: #fecaca; }
.btn.danger:hover { background: #fef2f2; border-color: #dc2626; }
.btn.small { padding: 4px 10px; font-size: 12px; border-radius: 6px; margin-top: 0; }
.badge {
    display: inline-block; padding: 1px 7px; border-radius: 10px; font-size: 12px;
    line-height: 18px; margin-left: 6px; background: #eef2ff; color: var(--primary);
}
.badge.bad { background: #fef2f2; color: #dc2626; }
.linkbtn {
    background: none; border: 0; color: var(--primary); cursor: pointer;
    font-size: 13px; padding: 0; text-decoration: underline; font-family: inherit;
}

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.alert.ok { background: #ecfdf5; border: 1px solid #a7f3d0; color: #12805c; }
.alert.err { background: #fef2f2; border: 1px solid #fecaca; color: #dc2626; }
.alert.warn { background: #fffbeb; border: 1px solid #fde68a; color: #b45309; }
.tip { color: var(--muted); font-size: 13px; margin: 6px 0; }
.muted { color: var(--muted); }

table.cfg, table.grid, table.env { border-collapse: collapse; width: 100%; background: #fff; font-size: 13px; }
table.cfg th, table.cfg td, table.grid th, table.grid td, table.env td {
    border: 1px solid var(--border); padding: 7px 9px; text-align: left;
}
table.cfg th { background: #eff6ff; color: #1e40af; }
table.grid th { background: #eff6ff; color: #1e40af; }
table.cfg select, table.cfg input[type=text] { width: auto; max-width: none; padding: 5px 7px; font-size: 13px; }
table.env td { padding: 8px 10px; }
.table-wrap { overflow-x: auto; }
.ok { color: #12805c; }
.bad { color: #dc2626; }
.warn { color: #b45309; }

pre.log {
    background: #0f172a; color: #d1e7ff; padding: 14px; border-radius: 10px;
    max-height: 480px; overflow: auto; font-size: 12px; line-height: 1.7;
}

.login-box {
    background: #fff; padding: 28px; border-radius: 14px; box-shadow: 0 4px 24px rgba(16,24,40,.08);
    width: 100%; max-width: 380px;
}
.login-box h2 { margin: 0 0 14px; }
.login-box .btn { width: 100%; margin-top: 16px; }
code { background: #f1f5f9; padding: 1px 5px; border-radius: 4px; font-size: 12px; }

@media (max-width: 720px) {
    .layout { flex-direction: column; }
    .side { width: 100%; flex: none; flex-direction: row; flex-wrap: wrap; gap: 6px; border-right: 0; border-bottom: 1px solid var(--border); }
    .brand { width: 100%; margin-bottom: 8px; }
    .side .nav { margin: 0; padding: 6px 10px; }
    .side-foot { width: 100%; margin-top: 8px; }
    .main { padding: 16px; }
}