:root {
    --bg: #0f172a;
    --card: #1e293b;
    --card2: #273449;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --primary: #3b82f6;
    --primary-h: #2563eb;
    --danger: #ef4444;
    --border: #334155;
    --ok: #22c55e;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.hidden { display: none !important; }
.mono { font-family: Consolas, monospace; font-size: 12px; color: var(--muted); }
.spacer { flex: 1; }

/* 登录 */
.auth-wrap {
    min-height: 100vh;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 16px; padding: 20px;
    background: radial-gradient(1200px 600px at 50% -10%, #1e293b 0%, var(--bg) 55%);
}
.auth-card {
    width: 100%; max-width: 400px;
    padding: 28px 26px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, .35);
}
.auth-brand { text-align: center; margin-bottom: 22px; }
.auth-logo {
    width: 52px; height: 52px; margin: 0 auto 12px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 14px; font-weight: 700; font-size: 16px; letter-spacing: .5px;
    color: #fff; background: linear-gradient(135deg, var(--primary), #7c3aed);
    box-shadow: 0 8px 20px rgba(59, 130, 246, .35);
}
.auth-logo.admin { background: linear-gradient(135deg, #f59e0b, #ef4444); box-shadow: 0 8px 20px rgba(239, 68, 68, .3); }
.auth-card h1 { font-size: 20px; text-align: center; margin: 0 0 6px; }
.auth-sub { text-align: center; color: var(--muted); font-size: 13px; margin: 0; }
.login-form { display: flex; flex-direction: column; gap: 8px; }
.login-form label { font-size: 13px; color: var(--muted); margin-top: 4px; }
.login-form input { padding: 11px 12px; }
.btn.block { width: 100%; padding: 12px; font-size: 15px; margin-top: 14px; }
.btn.outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); white-space: nowrap; }
.btn.outline:hover { background: rgba(59, 130, 246, .1); }
.code-row { display: flex; gap: 8px; }
.code-row input { flex: 1; }
.form-links { display: flex; justify-content: space-between; margin-top: 14px; }
.form-links.center { justify-content: center; }
.form-links a { color: var(--muted); font-size: 13px; text-decoration: none; }
.form-links a:hover { color: var(--primary); }
.footnote { color: var(--muted); font-size: 12px; }

/* 布局 */
.topbar {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 20px; background: var(--card);
    border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; font-size: 16px; }
.who { color: var(--muted); font-size: 13px; }
.container { max-width: 1080px; margin: 0 auto; padding: 20px; }

.card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: 12px; padding: 18px; margin-bottom: 18px;
}
.card h2 { margin: 0 0 14px; font-size: 16px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat { text-align: center; }
.stat-label { color: var(--muted); font-size: 13px; }
.stat-value { font-size: 26px; font-weight: 700; margin-top: 6px; }

/* 表单 */
input, textarea, select {
    background: var(--card2); border: 1px solid var(--border);
    color: var(--text); padding: 9px 11px; border-radius: 8px;
    font-size: 14px; outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--primary); }
textarea { resize: vertical; width: 100%; }
.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.form-row label { font-size: 13px; color: var(--muted); }
.form-inline { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.form-inline input, .form-inline select { flex: 1; min-width: 120px; }

/* 按钮 */
.btn {
    padding: 9px 16px; border: none; border-radius: 8px;
    cursor: pointer; font-size: 14px; background: var(--card2); color: var(--text);
}
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-h); }
.btn.ghost { background: transparent; border: 1px solid var(--border); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.tiny { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* 表格 */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 500; }
.actions { display: flex; gap: 6px; }

.output {
    background: #0b1220; border: 1px solid var(--border); border-radius: 8px;
    padding: 14px; margin-top: 14px; min-height: 80px;
    white-space: pre-wrap; word-break: break-word; font-size: 14px;
}

.pager { display: flex; align-items: center; gap: 12px; margin-top: 12px; justify-content: center; }
.msg { text-align: center; font-size: 13px; color: var(--ok); min-height: 18px; }
.msg.error { color: var(--danger); }