:root {
    --bg-main: #0c1017;
    --sidebar-bg: #111827;
    --card-bg: #1a2234;
    --border-color: #2a374a;
    --primary: #00f0ff;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --success: #10b981;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
body { background: var(--bg-main); color: var(--text-main); height: 100vh; overflow: hidden; }

.app-layout { display: flex; height: 100vh; width: 100vw; }

/* 侧边栏 */
.sidebar { width: 240px; background: var(--sidebar-bg); border-right: 1px solid var(--border-color); display: flex; flex-direction: column; }
.sidebar-brand { padding: 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--border-color); }
.logo-icon { width: 36px; height: 36px; background: var(--primary); color: #000; font-weight: bold; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.brand-text { display: flex; flex-direction: column; }
.brand-title { font-weight: bold; font-size: 15px; color: #fff; letter-spacing: 0.5px; }
.brand-sub { font-size: 9px; color: var(--text-muted); }

.menu-group-title { padding: 16px 20px 8px 20px; font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.menu-list { list-style: none; }
.menu-item { padding: 12px 20px; display: flex; align-items: center; gap: 12px; color: var(--text-muted); cursor: pointer; font-size: 13px; transition: 0.2s; border-left: 3px solid transparent; }
.menu-item:hover { color: #fff; background: rgba(255,255,255,0.03); }
.menu-item.active { color: var(--primary); background: rgba(0, 240, 255, 0.08); border-left-color: var(--primary); }
.icon { width: 18px; height: 18px; }

.sidebar-footer { margin-top: auto; padding: 16px; border-top: 1px solid var(--border-color); font-size: 12px; display: flex; flex-direction: column; gap: 4px; }
.badge-vip { background: rgba(245, 158, 11, 0.15); color: #f59e0b; padding: 2px 6px; border-radius: 4px; width: fit-content; font-size: 11px; font-weight: bold; }
.expiry-text { color: var(--text-muted); font-size: 11px; }

/* 主体区域 */
.main-body { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

/* 顶部标签页导航栏 */
.top-nav-bar { height: 48px; background: var(--sidebar-bg); border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; padding: 0 16px; }
.tabs-container { display: flex; gap: 4px; height: 100%; align-items: flex-end; }
.tab-item { background: var(--card-bg); padding: 8px 16px; font-size: 13px; border-top-left-radius: 6px; border-top-right-radius: 6px; border: 1px solid var(--border-color); border-bottom: none; cursor: pointer; display: flex; align-items: center; gap: 8px; color: var(--text-muted); transition: 0.2s; }
.tab-item.active { background: var(--bg-main); color: var(--primary); border-color: var(--border-color); font-weight: 500; }
.close-tab { font-size: 14px; border-radius: 50%; width: 16px; height: 16px; display: inline-flex; align-items: center; justify-content: center; }
.close-tab:hover { background: rgba(255,255,255,0.1); color: #fff; }

.top-right-actions { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.status-info { background: rgba(16, 185, 129, 0.1); padding: 4px 10px; border-radius: 12px; color: var(--success); font-size: 12px; border: 1px solid rgba(16, 185, 129, 0.2); }
.icon-btn { background: var(--card-bg); border: 1px solid var(--border-color); color: var(--text-main); padding: 6px 12px; border-radius: 4px; cursor: pointer; font-size: 12px; }
.icon-btn:hover { border-color: var(--primary); }

/* 视口内容 */
.content-viewport { flex: 1; overflow-y: auto; padding: 20px; background: var(--bg-main); position: relative; }
.page-view { display: none; }
.page-view.active { display: block; }

/* 首页大盘样式 */
.welcome-banner { background: var(--card-bg); border: 1px solid var(--border-color); padding: 20px; border-radius: 8px; display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.welcome-banner h2 { font-size: 18px; color: #fff; margin-bottom: 4px; }
.welcome-banner p { font-size: 12px; color: var(--text-muted); }
.time-filters { display: flex; gap: 6px; }
.filter-btn { background: rgba(255,255,255,0.05); border: 1px solid var(--border-color); color: var(--text-muted); padding: 6px 12px; border-radius: 4px; font-size: 12px; cursor: pointer; }
.filter-btn.active, .filter-btn:hover { background: var(--primary); color: #000; font-weight: bold; }

.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.metric-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 8px; padding: 16px; }
.metric-header { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-muted); margin-bottom: 12px; font-weight: bold; }
.sub-label { font-size: 11px; font-weight: normal; }
.metric-body { display: flex; flex-direction: column; gap: 8px; }
.metric-row { display: flex; justify-content: space-between; font-size: 13px; }
.metric-row strong { color: #fff; }

.dashboard-split { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; }
.card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 8px; padding: 20px; }
.card-title { font-size: 14px; font-weight: bold; margin-bottom: 16px; color: #fff; }
.chart-placeholder { height: 260px; background: rgba(0,0,0,0.2); border-radius: 6px; border: 1px dashed var(--border-color); }
.rank-list { display: flex; flex-direction: column; gap: 10px; max-height: 280px; overflow-y: auto; }
.rank-item { display: flex; justify-content: space-between; font-size: 12px; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.03); }

/* 控制中心列表样式 */
.control-toolbar { background: var(--card-bg); border: 1px solid var(--border-color); padding: 10px 16px; border-radius: 8px; display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-size: 13px; }
.toolbar-left-stats { display: flex; align-items: center; gap: 8px; }
.badge-online { background: var(--success); color: #000; font-weight: bold; padding: 2px 8px; border-radius: 12px; font-size: 11px; }
.toolbar-right-tools { display: flex; gap: 6px; }
.tool-btn { background: rgba(255,255,255,0.05); border: 1px solid var(--border-color); color: var(--text-main); padding: 5px 10px; border-radius: 4px; font-size: 12px; cursor: pointer; }
.tool-btn:hover { background: rgba(0,240,255,0.1); border-color: var(--primary); color: var(--primary); }
.tool-btn.primary { background: var(--primary); color: #000; font-weight: bold; }

.cards-stream { display: flex; flex-direction: column; gap: 12px; }
.control-item-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 6px; padding: 12px 16px; font-size: 13px; }
.item-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 8px; }
.item-card-meta { display: flex; gap: 12px; font-size: 12px; color: var(--text-muted); }
.item-card-body { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 6px; }
.data-badge-box { background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); padding: 4px 10px; border-radius: 4px; font-size: 12px; display: inline-flex; gap: 6px; }
/* 工作设置页面专用样式 */
.settings-sub-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    background: #131924;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #232d3f;
}

.sub-tab-btn {
    background: transparent;
    border: 1px solid transparent;
    color: #94a3b8;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.sub-tab-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.sub-tab-btn.active {
    background: #2563eb;
    color: #fff;
    font-weight: 600;
}

.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.settings-section {
    background: #131924;
    border: 1px solid #232d3f;
    border-radius: 8px;
    padding: 20px;
}

.section-title {
    font-size: 15px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid #232d3f;
}

.form-item {
    margin-bottom: 16px;
}

.form-item label {
    display: block;
    font-size: 13px;
    color: #cbd5e1;
    margin-bottom: 6px;
}

.form-item input[type="text"],
.form-item input[type="number"],
.form-item textarea {
    width: 100%;
    background: #0c1017;
    border: 1px solid #2a374a;
    color: #fff;
    padding: 10px;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 13px;
}

.form-item input:focus, .form-item textarea:focus {
    border-color: #2563eb;
    outline: none;
}

.input-with-count {
    position: relative;
}

.count-tip {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 11px;
    color: #64748b;
}

.form-desc {
    display: block;
    font-size: 11px;
    color: #64748b;
    margin-top: 4px;
}

.switch-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #1a2234;
    padding: 12px 14px;
    border-radius: 6px;
    border: 1px solid #2a374a;
}

.switch-info .label-title {
    display: block;
    font-size: 13px;
    color: #fff;
    font-weight: 500;
}

/* 开关样式开关 */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 22px;
    flex-shrink: 0;
}

.switch input { 
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #334155;
    transition: .3s;
    border-radius: 22px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #2563eb;
}

input:checked + .slider:before {
    transform: translateX(22px);
}

.settings-footer-actions {
    background: #131924;
    padding: 15px 20px;
    border-radius: 8px;
    border: 1px solid #232d3f;
    display: flex;
    gap: 10px;
    justify-content: flex-start;
}