:root {
    --bg: #0f172a;
    --card-bg: #1e293b;
    --border: #334155;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #38bdf8;
    --green: #22c55e;
    --blue: #60a5fa;
    --purple: #c084fc;
    --orange: #fb923c;
    --yellow: #facc15;
    --red: #ef4444;
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: #090d16;
    border-bottom: 1px solid var(--border);
}

.nav-title {
    font-size: 18px;
    font-weight: bold;
    color: var(--primary);
}

.container {
    max-width: 1440px;
    margin: 20px auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

.btn {
    border: none;
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    font-weight: 500;
    transition: 0.2s;
}
.btn:hover { opacity: 0.85; }
.btn-primary { background: #0284c7; color: #fff; text-decoration: none; display: inline-block; }
.btn-secondary { background: #475569; color: #fff; }
.btn-success { background: #16a34a; color: #fff; }
.btn-danger { background: #dc2626; color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
}
.kpi-item {
    background: #0f172a;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    text-align: center;
}
.kpi-num { font-size: 18px; font-weight: bold; }
.kpi-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.kpi-green { color: var(--green); }
.kpi-blue { color: var(--blue); }
.kpi-purple { color: var(--purple); }
.kpi-orange { color: var(--orange); }
.kpi-yellow { color: var(--yellow); }
.kpi-red { color: var(--red); }

/* Config Bar */
.config-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    background: #0f172a;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    margin-bottom: 12px;
}
.cfg-group { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.cfg-group input, .cfg-group select {
    background: #1e293b;
    border: 1px solid var(--border);
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
}
.ctrl-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
}

/* 拓扑卡片矩阵 */
.clients-matrix {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.client-card {
    background: #0f172a;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 16px;
}
.client-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #334155;
}
.client-name {
    font-size: 15px;
    font-weight: bold;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.client-stat-badge {
    font-size: 12px;
    color: #cbd5e1;
    background: #1e293b;
    border: 1px solid #475569;
    border-radius: 4px;
    padding: 1px 8px;
    font-weight: 500;
}
.client-stt-badge {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: bold;
}
.stt-green { background: rgba(34,197,94,0.2); color: var(--green); border: 1px solid var(--green); }
.stt-yellow { background: rgba(250,204,21,0.2); color: var(--yellow); border: 1px solid var(--yellow); }
.stt-red { background: rgba(239,68,68,0.2); color: var(--red); border: 1px solid var(--red); }

/* 电话宝方块网格 - 原汁原味不改动排版尺寸 */
.boxes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 10px;
}
.box-item {
    background: #1e293b;
    border-radius: 6px;
    padding: 8px 10px;
    font-size: 12px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    border: 2px solid var(--border);
    position: relative;
    transition: all 0.2s ease-in-out;
}
.box-green { border-color: var(--green); }
.box-yellow { border-color: var(--yellow); }
.box-red { border-color: var(--red); }

/* 纯绿色呼吸发光脉冲 */
@keyframes pureGreenPulse {
    0% {
        border-color: #22c55e;
        box-shadow: 0 0 0px transparent;
    }
    50% {
        border-color: #86efac;
        box-shadow: 0 0 16px rgba(34, 197, 94, 0.85);
    }
    100% {
        border-color: #22c55e;
        box-shadow: 0 0 0px transparent;
    }
}
.box-green-pulse {
    animation: pureGreenPulse 1.6s infinite ease-in-out !important;
}

.box-title { font-weight: bold; display: flex; justify-content: space-between; }
.box-phone { color: var(--primary); font-family: monospace; font-size: 13px; }
.box-reboot-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    background: #475569;
    color: #fff;
    border: none;
    border-radius: 3px;
    padding: 2px 6px;
    font-size: 10px;
    cursor: pointer;
}
.box-reboot-btn:hover { background: var(--red); }