/* ========== 全局样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a1628;
    --bg-secondary: #0f2137;
    --bg-card: #132742;
    --bg-card-hover: #1a3352;
    --border-color: #1e3a5f;
    --text-primary: #e8edf5;
    --text-secondary: #8fa3bf;
    --text-muted: #5a7090;
    --accent-blue: #00d4ff;
    --accent-green: #00ff88;
    --accent-yellow: #ffc107;
    --accent-red: #ff4757;
    --accent-purple: #a855f7;
    --alarm-bg: rgba(255, 71, 87, 0.15);
    --warning-bg: rgba(255, 193, 7, 0.15);
    --normal-bg: rgba(0, 255, 136, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== 顶部导航 ========== */
.top-header {
    height: 64px;
    background: linear-gradient(180deg, #0d1b2e 0%, #0a1628 100%);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    background: linear-gradient(90deg, #00d4ff, #00ff88);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.header-nav {
    display: flex;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(0, 212, 255, 0.1);
}

.nav-item.active {
    color: var(--accent-blue);
    background: rgba(0, 212, 255, 0.15);
}

.nav-icon {
    font-size: 16px;
}

.alarm-badge {
    background: var(--accent-red);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
    display: none;
}

.alarm-badge.visible {
    display: inline-block;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online {
    background: var(--accent-green);
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse-green 2s infinite;
}

.status-dot.normal {
    background: var(--accent-green);
}

.status-dot.warning {
    background: var(--accent-yellow);
}

.status-dot.alarm {
    background: var(--accent-red);
    animation: pulse-red 1s infinite;
}

@keyframes pulse-green {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes pulse-red {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}

.status-text {
    font-size: 13px;
    color: var(--text-secondary);
}

.current-time {
    font-size: 14px;
    color: var(--accent-blue);
    font-family: 'Courier New', monospace;
    font-weight: 500;
}

/* ========== 主内容区 ========== */
.main-container {
    padding: 24px;
    max-width: 1600px;
    margin: 0 auto;
}

.view {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== 统计卡片 ========== */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.stat-icon.blue {
    background: rgba(0, 212, 255, 0.15);
}

.stat-icon.green {
    background: rgba(0, 255, 136, 0.15);
}

.stat-icon.yellow {
    background: rgba(255, 193, 7, 0.15);
}

.stat-icon.red {
    background: rgba(255, 71, 87, 0.15);
}

.stat-info {
    flex: 1;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ========== 全厂概览图表 ========== */
.overview-section {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.overview-chart {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
}

.overview-chart canvas {
    width: 100% !important;
    height: 180px !important;
}

.chart-badge {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent-green);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    position: relative;
    padding-left: 18px;
}

.chart-badge::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse-green 2s infinite;
}

.status-chart canvas {
    height: 140px !important;
}

.status-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.status-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.status-legend-item .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-legend-item .dot.normal {
    background: var(--accent-green);
}

.status-legend-item .dot.warning {
    background: var(--accent-yellow);
}

.status-legend-item .dot.alarm {
    background: var(--accent-red);
}

/* ========== 区块标题 ========== */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    position: relative;
    padding-left: 14px;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: linear-gradient(180deg, #00d4ff, #00ff88);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========== 生产线网格 ========== */
.production-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.production-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.production-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-green);
}

.production-card.warning::before {
    background: var(--accent-yellow);
}

.production-card.alarm::before {
    background: var(--accent-red);
    animation: alarm-flash 1s infinite;
}

@keyframes alarm-flash {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.production-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.production-line-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.line-number {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.line-status {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 500;
}

.line-status.normal {
    background: var(--normal-bg);
    color: var(--accent-green);
}

.line-status.warning {
    background: var(--warning-bg);
    color: var(--accent-yellow);
}

.line-status.alarm {
    background: var(--alarm-bg);
    color: var(--accent-red);
}

.tank-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tank-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.tank-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.tank-indicator.blue {
    background: #3b82f6;
    box-shadow: 0 0 8px #3b82f6;
}

.tank-indicator.red {
    background: #ef4444;
    box-shadow: 0 0 8px #ef4444;
}

.tank-indicator.yellow {
    background: #eab308;
    box-shadow: 0 0 8px #eab308;
}

.tank-info {
    flex: 1;
    min-width: 0;
}

.tank-name {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 3px;
}

.tank-values {
    display: flex;
    gap: 12px;
    font-size: 13px;
    font-weight: 500;
}

.tank-ph {
    color: var(--accent-blue);
}

.tank-ec {
    color: var(--accent-green);
}

.tank-status-icon {
    font-size: 14px;
}

/* ========== 图例栏 ========== */
.legend-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.legend-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
}

.legend-dot.blue {
    background: #3b82f6;
}

.legend-dot.red {
    background: #ef4444;
}

.legend-dot.yellow {
    background: #eab308;
}

.legend-status {
    width: 14px;
    height: 14px;
    border-radius: 4px;
}

.legend-status.normal {
    background: var(--accent-green);
}

.legend-status.warning {
    background: var(--accent-yellow);
}

.legend-status.alarm {
    background: var(--accent-red);
}

/* ========== 详情页 ========== */
.detail-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.back-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.back-btn:hover {
    color: var(--text-primary);
    background: var(--bg-card-hover);
    border-color: var(--accent-blue);
}

.detail-title {
    flex: 1;
    font-size: 22px;
    font-weight: 600;
}

.detail-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* 药槽卡片 */
.tank-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.tank-detail-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.tank-detail-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.tank-detail-card.tank-a::before {
    background: linear-gradient(180deg, #3b82f6, #1d4ed8);
}

.tank-detail-card.tank-b::before {
    background: linear-gradient(180deg, #ef4444, #b91c1c);
}

.tank-detail-card.tank-c::before {
    background: linear-gradient(180deg, #eab308, #ca8a04);
}

.tank-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.tank-detail-title {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tank-detail-status {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 500;
}

.tank-detail-status.normal {
    background: var(--normal-bg);
    color: var(--accent-green);
}

.tank-detail-status.warning {
    background: var(--warning-bg);
    color: var(--accent-yellow);
}

.tank-detail-status.alarm {
    background: var(--alarm-bg);
    color: var(--accent-red);
}

.tank-metrics {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.metric-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.metric-value {
    font-size: 20px;
    font-weight: 700;
    font-family: 'Courier New', monospace;
}

.metric-value.ph {
    color: var(--accent-blue);
}

.metric-value.ec {
    color: var(--accent-green);
}

.metric-value.temp {
    color: var(--accent-purple);
}

.metric-unit {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 400;
}

.metric-range {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 3px;
}

/* ========== 图表区域 ========== */
.charts-section {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.chart-container:nth-child(3) {
    grid-column: span 2;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.chart-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.chart-controls {
    display: flex;
    gap: 4px;
}

.time-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s ease;
}

.time-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}

.time-btn.active {
    background: rgba(0, 212, 255, 0.2);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.chart-container canvas {
    width: 100% !important;
    height: 240px !important;
}

/* ========== 数据表格 ========== */
.data-table-section {
    margin-top: 24px;
}

.table-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background: rgba(0, 212, 255, 0.1);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 13px;
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.normal {
    background: var(--normal-bg);
    color: var(--accent-green);
}

.status-badge.warning {
    background: var(--warning-bg);
    color: var(--accent-yellow);
}

.status-badge.alarm {
    background: var(--alarm-bg);
    color: var(--accent-red);
}

/* ========== 报警中心 ========== */
.alarm-filters {
    display: flex;
    gap: 8px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
}

.filter-btn.active {
    background: rgba(0, 212, 255, 0.2);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.alarm-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.alarm-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.alarm-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.alarm-stat-card.red::before {
    background: var(--accent-red);
}

.alarm-stat-card.yellow::before {
    background: var(--accent-yellow);
}

.alarm-stat-card.green::before {
    background: var(--accent-green);
}

.alarm-stat-card.blue::before {
    background: var(--accent-blue);
}

.alarm-stat-value {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.alarm-stat-card.red .alarm-stat-value {
    color: var(--accent-red);
}

.alarm-stat-card.yellow .alarm-stat-value {
    color: var(--accent-yellow);
}

.alarm-stat-card.green .alarm-stat-value {
    color: var(--accent-green);
}

.alarm-stat-card.blue .alarm-stat-value {
    color: var(--accent-blue);
}

.alarm-stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.alarm-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.alarm-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
    border-left: 4px solid var(--border-color);
}

.alarm-item.alarm {
    border-left-color: var(--accent-red);
    background: rgba(255, 71, 87, 0.05);
}

.alarm-item.warning {
    border-left-color: var(--accent-yellow);
    background: rgba(255, 193, 7, 0.05);
}

.alarm-item.normal {
    border-left-color: var(--accent-green);
    background: rgba(0, 255, 136, 0.05);
}

.alarm-item:hover {
    background: var(--bg-card-hover);
}

.alarm-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.alarm-content {
    flex: 1;
}

.alarm-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.alarm-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

.alarm-time {
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.alarm-level-tag {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    flex-shrink: 0;
}

.alarm-level-tag.alarm {
    background: var(--alarm-bg);
    color: var(--accent-red);
}

.alarm-level-tag.warning {
    background: var(--warning-bg);
    color: var(--accent-yellow);
}

.alarm-level-tag.normal {
    background: var(--normal-bg);
    color: var(--accent-green);
}

/* ========== 产品介绍 ========== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.product-header {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: white;
}

.product-header.ec {
    background: linear-gradient(135deg, #0891b2, #06b6d4);
}

.product-header.ph {
    background: linear-gradient(135deg, #7c3aed, #a855f7);
}

.product-header.sensor-ec {
    background: linear-gradient(135deg, #059669, #10b981);
}

.product-header.sensor-ph {
    background: linear-gradient(135deg, #dc2626, #ef4444);
}

.product-model {
    font-size: 18px;
    font-weight: 700;
}

.product-type {
    font-size: 13px;
    opacity: 0.9;
}

.product-body {
    padding: 20px;
}

.product-body h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.spec-list {
    list-style: none;
    margin-bottom: 16px;
}

.spec-list li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 13px;
}

.spec-list li:last-child {
    border-bottom: none;
}

.spec-label {
    color: var(--text-secondary);
}

.spec-value {
    color: var(--text-primary);
    font-weight: 500;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tag {
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent-blue);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
}

/* ========== 系统说明 ========== */
.about-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}

.about-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.about-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 架构图 */
.arch-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 10px 0;
}

.arch-layer {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--accent-blue);
    border-radius: 10px;
    padding: 16px 24px;
    text-align: center;
    min-width: 400px;
}

.arch-layer-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-blue);
    margin-bottom: 10px;
}

.arch-items {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.arch-item {
    background: var(--bg-card);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.arch-arrow {
    font-size: 20px;
    color: var(--accent-blue);
}

/* 功能网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(0, 212, 255, 0.05);
    border-color: var(--accent-blue);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.feature-item h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-item p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 规格表 */
.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table th {
    background: rgba(0, 212, 255, 0.1);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 13px;
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.spec-table td {
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.spec-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* 部署步骤 */
.deploy-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 16px;
}

.deploy-step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.step-num {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, #00d4ff, #00ff88);
    color: #0a1628;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.deploy-step span:last-child {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========== 报警弹窗 ========== */
.alarm-popup {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: 1000;
    transform: translateX(120%);
    transition: transform 0.3s ease;
}

.alarm-popup.show {
    transform: translateX(0);
}

.alarm-popup-content {
    background: linear-gradient(135deg, #1a0a0f, #2d0f18);
    border: 1px solid var(--accent-red);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 350px;
    box-shadow: 0 8px 32px rgba(255, 71, 87, 0.3);
    position: relative;
}

.alarm-popup-icon {
    font-size: 32px;
    animation: shake 0.5s infinite;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    75% { transform: translateX(3px); }
}

.alarm-popup-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-red);
    margin-bottom: 4px;
}

.alarm-popup-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

.alarm-popup-close {
    position: absolute;
    top: 8px;
    right: 8px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}

.alarm-popup-close:hover {
    color: var(--text-primary);
}

/* ========== 响应式 ========== */
@media (max-width: 1200px) {
    .production-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .alarm-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .charts-section {
        grid-template-columns: 1fr;
    }
    .chart-container:nth-child(3) {
        grid-column: span 1;
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .deploy-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .top-header {
        flex-direction: column;
        height: auto;
        padding: 12px;
        gap: 12px;
    }
    .header-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    .production-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .tank-cards {
        grid-template-columns: 1fr;
    }
    .stats-row {
        grid-template-columns: 1fr;
    }
    .alarm-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .deploy-steps {
        grid-template-columns: 1fr;
    }
    .arch-layer {
        min-width: auto;
        width: 100%;
    }
}