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

body {
    font-family: 'Noto Sans SC', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 颜色变量 */
:root {
    --primary-blue: #1E88E5;
    --accent-orange: #FF7D00;
    --light-gray: #F0F0F0;
    --dark-gray: #666;
    --white: #ffffff;
    --text-dark: #333;
}

/* 顶部导航栏 */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.navbar {
    padding: 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo h2 {
    color: var(--primary-blue);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 2px;
}

.logo span {
    color: var(--dark-gray);
    font-size: 12px;
    font-weight: 300;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 10px 0;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
}

.nav-link.highlight {
    color: var(--accent-orange);
    font-weight: 600;
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    background: var(--white);
    min-width: 200px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 10px 0;
    z-index: 1001;
    white-space: nowrap;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    display: block;
    padding: 12px 20px;
    text-decoration: none;
    color: var(--text-dark);
    transition: background-color 0.3s ease;
    font-size: 14px;
}

.dropdown-content a:hover {
    background-color: var(--light-gray);
    color: var(--primary-blue);
}

/* 确保普通下拉菜单不受大型菜单样式影响 */
.dropdown:not(.mega-dropdown) .dropdown-content {
    min-width: 200px;
    padding: 10px 0;
}

.dropdown:not(.mega-dropdown) .dropdown-content a {
    padding: 12px 20px;
    margin-bottom: 0;
}

/* 大型下拉菜单 */
.mega-dropdown .dropdown-content {
    min-width: 900px;
    left: 0;
    transform: none;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    border: 1px solid #e0e0e0;
}

.mega-menu {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    align-items: start;
}

.mega-menu-section {
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

.mega-menu-section h4 {
    color: var(--primary-blue);
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 15px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-blue);
    text-align: left;
}

.mega-menu-section a {
    display: block;
    padding: 10px 15px;
    font-size: 14px;
    color: var(--dark-gray);
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 6px;
    margin-bottom: 2px;
    text-align: left;
}

.mega-menu-section a:hover {
    color: var(--primary-blue);
    background-color: var(--light-gray);
    transform: translateX(5px);
}

/* 无人零售控制两列布局 */
.mega-menu-section.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    grid-template-rows: auto 1fr;
}

.mega-menu-section.two-column h4 {
    grid-column: 1 / -1;
    margin-bottom: 15px;
}

.mega-menu-section.two-column .column {
    display: flex;
    flex-direction: column;
}

.mega-menu-section.two-column .column a {
    padding: 10px 15px;
    margin-bottom: 2px;
}

.nav-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.lang-switch {
    background: none;
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.lang-switch:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.partner-btn {
    background: var(--accent-orange);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.partner-btn:hover {
    background: #e66a00;
    transform: translateY(-2px);
}

/* 首屏轮播区 */
.hero-section {
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
    position: relative;
}

.slide {
    display: none;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
}

.slide.active {
    display: block;
}

.slide-content {
    display: flex;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    gap: 60px;
}

.slide-text {
    flex: 1;
    max-width: 500px;
}

.product-tag {
    display: inline-block;
    background: var(--accent-orange);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.slide-text h1 {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.2;
}

.slide-text p {
    font-size: 18px;
    color: var(--dark-gray);
    margin-bottom: 30px;
    line-height: 1.6;
}

.slide-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: #1565C0;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30, 136, 229, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    padding: 13px 28px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.slide-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 产品界面模拟 */
.app-mockup {
    position: relative;
}

.phone-frame {
    width: 300px;
    height: 600px;
    background: #333;
    border-radius: 30px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.app-interface {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.app-header {
    text-align: center;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 30px;
    font-size: 18px;
}

.app-content {
    flex: 1;
}

.device-status {
    background: var(--light-gray);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 30px;
    color: var(--dark-gray);
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.control-item {
    background: var(--primary-blue);
    color: var(--white);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 500;
}

/* PLC控制系统界面 */
.plc-control-system {
    width: 600px;
    height: 400px;
    background: var(--white);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border: 1px solid #e0e0e0;
    font-size: 12px;
}

.system-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--light-gray);
}

.system-title {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 16px;
}

.system-status {
    display: flex;
    align-items: center;
    gap: 5px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4CAF50;
}

.status-dot.online {
    background: #4CAF50;
    animation: pulse 2s infinite;
}

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

.status-text {
    font-size: 12px;
    color: #4CAF50;
    font-weight: 500;
}

.control-dashboard {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    gap: 15px;
    height: calc(100% - 50px);
}

/* 左侧控制面板 */
.control-panel {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 10px;
}

.panel-section {
    margin-bottom: 15px;
}

.panel-section h4 {
    font-size: 12px;
    color: var(--primary-blue);
    margin-bottom: 8px;
    font-weight: 600;
}

.control-buttons {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.control-btn {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-btn.start {
    background: #4CAF50;
    color: white;
}

.control-btn.stop {
    background: #f44336;
    color: white;
}

.control-btn.reset {
    background: #ff9800;
    color: white;
}

.control-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.parameter-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.param-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.param-item label {
    font-size: 10px;
    color: var(--dark-gray);
}

.slider-control {
    height: 4px;
    background: #ddd;
    border-radius: 2px;
    position: relative;
}

.slider-control::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 60%;
    background: var(--primary-blue);
    border-radius: 2px;
}

/* 中央监控区域 */
.monitoring-area {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.data-display {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 10px;
}

.data-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px;
    border-radius: 6px;
    text-align: center;
}

.data-value {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}

.data-label {
    font-size: 10px;
    opacity: 0.9;
}

.device-status-grid {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.device-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px;
    background: white;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
}

.device-item.warning {
    border-color: #ff9800;
    background: #fff3e0;
}

.device-icon {
    font-size: 14px;
}

.device-info {
    flex: 1;
}

.device-name {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-dark);
}

.device-status-text {
    font-size: 10px;
    color: var(--dark-gray);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-indicator.running {
    background: #4CAF50;
    animation: pulse 2s infinite;
}

.status-indicator.standby {
    background: #9E9E9E;
}

.status-indicator.warning {
    background: #ff9800;
    animation: pulse 1s infinite;
}

/* 右侧线路图 */
.circuit-diagram {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 10px;
}

.diagram-title {
    font-size: 12px;
    color: var(--primary-blue);
    margin-bottom: 8px;
    font-weight: 600;
    text-align: center;
}

.circuit-display {
    position: relative;
    height: calc(100% - 25px);
    background: white;
    border-radius: 6px;
    padding: 8px;
    border: 1px solid #e0e0e0;
}

.circuit-component {
    position: absolute;
    background: #e3f2fd;
    border: 2px solid var(--primary-blue);
    border-radius: 4px;
    padding: 4px 6px;
    font-size: 9px;
    text-align: center;
}

.main-controller {
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    background: #bbdefb;
}

.input-module {
    top: 10%;
    left: 10%;
}

.output-module {
    top: 10%;
    right: 10%;
}

.component-label {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 2px;
}

.connection-points {
    display: flex;
    gap: 4px;
    justify-content: center;
}

.point {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--primary-blue);
}

.module-indicators {
    display: flex;
    flex-direction: column;
    gap: 2px;
    align-items: center;
    margin-top: 2px;
}

.module-indicators .indicator {
    width: 3px;
    height: 3px;
    border-radius: 50%;
}

.module-indicators .indicator.on {
    background: #4CAF50;
}

.module-indicators .indicator.off {
    background: #ccc;
}

.circuit-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.line {
    position: absolute;
    background: var(--primary-blue);
}

.line.horizontal {
    height: 1px;
    width: 30%;
    top: 25%;
    left: 35%;
}

.line.vertical {
    width: 1px;
    height: 20%;
    top: 25%;
    left: 50%;
}

.line.active {
    background: #4CAF50;
    animation: flow 2s infinite;
}

@keyframes flow {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

.connected-devices {
    position: absolute;
    bottom: 10%;
    left: 10%;
    right: 10%;
    display: flex;
    justify-content: space-between;
}

.device-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.node-icon {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    font-weight: 600;
}

.node-label {
    font-size: 8px;
    color: var(--dark-gray);
}

/* 售货机管理系统演示 */
.vending-system-demo {
    width: 700px;
    height: 520px;
    background: var(--white);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border: 1px solid #e0e0e0;
    font-size: 12px;
}

.vending-dashboard {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: 15px;
    height: calc(100% - 50px);
}

/* 设备监控区域 */
.device-monitor {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 12px;
}

.monitor-title {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 11px;
    margin-bottom: 6px;
    height: 20px;
    display: flex;
    align-items: center;
}

.device-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.device-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: white;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
}

.device-item.warning {
    border-color: #ff9800;
    background: #fff3e0;
}

.device-item.offline {
    border-color: #f44336;
    background: #ffebee;
}

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

.device-info {
    flex: 1;
}

.device-name {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 11px;
}

.device-location {
    font-size: 10px;
    color: var(--dark-gray);
    margin-top: 1px;
}

.device-status-badge {
    padding: 3px 6px;
    border-radius: 10px;
    font-size: 9px;
    font-weight: 500;
}

.device-status-badge.online {
    background: #e8f5e8;
    color: #4CAF50;
}

.device-status-badge.warning {
    background: #fff3e0;
    color: #ff9800;
}

.device-status-badge.offline {
    background: #ffebee;
    color: #f44336;
}

/* 商品管理区域 */
.product-management {
    background: white;
    border-radius: 8px;
    padding: 12px;
    border: 1px solid #e0e0e0;
}

.section-title {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 13px;
    margin-bottom: 10px;
}

.product-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    background: #f8f9fa;
    border-radius: 6px;
}

.product-image {
    font-size: 20px;
    width: 30px;
    text-align: center;
}

.product-details {
    flex: 1;
}

.product-name {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 11px;
}

.product-price {
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 11px;
    margin: 2px 0;
}

.stock-info {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stock-bar {
    flex: 1;
    height: 4px;
    background: #e0e0e0;
    border-radius: 2px;
    overflow: hidden;
}

.stock-fill {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50, #8BC34A);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.stock-text {
    font-size: 9px;
    color: var(--dark-gray);
    white-space: nowrap;
}

/* 销售统计区域 */
.sales-analytics {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 12px;
}

.stats-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 15px;
}

.stat-card {
    background: white;
    padding: 10px;
    border-radius: 6px;
    text-align: center;
    border: 1px solid #e0e0e0;
}

.stat-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-blue);
}

.stat-label {
    font-size: 10px;
    color: var(--dark-gray);
    margin-top: 2px;
}

.payment-methods {
    background: white;
    border-radius: 6px;
    padding: 10px;
    border: 1px solid #e0e0e0;
}

.payment-title {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 11px;
    margin-bottom: 8px;
}

.payment-stats {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.payment-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.payment-name {
    font-size: 10px;
    color: var(--dark-gray);
    width: 50px;
}

.payment-bar {
    flex: 1;
    height: 4px;
    background: #e0e0e0;
    border-radius: 2px;
    overflow: hidden;
}

.payment-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.payment-fill.wechat {
    background: #07c160;
}

.payment-fill.alipay {
    background: #1677ff;
}

.payment-fill.cash {
    background: #ff9800;
}

.payment-percent {
    font-size: 9px;
    color: var(--dark-gray);
    width: 25px;
    text-align: right;
}

/* 教育系统演示 */
.education-system-demo {
    width: 700px;
    height: 520px;
    background: var(--white);
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border: 1px solid #e0e0e0;
    font-size: 11px;
}

.education-dashboard {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.system-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 2px solid #f0f0f0;
    height: 35px;
}

.system-title {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 14px;
}

.system-status .status-indicator {
    padding: 3px 6px;
    border-radius: 10px;
    font-size: 9px;
    font-weight: 500;
}

.system-status .status-indicator.online {
    background: #e8f5e8;
    color: #4CAF50;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: 10px;
    flex: 1;
    height: calc(100% - 45px);
}

/* 项目概览区域 */
.project-overview {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 8px;
    height: 100%;
    overflow: hidden;
}

.project-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    height: calc(100% - 25px);
    overflow-y: auto;
}

.project-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px;
    background: white;
    border-radius: 4px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
    min-height: 45px;
}

.project-item.active {
    border-color: var(--primary-blue);
    background: #f0f8ff;
}

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

.project-info {
    flex: 1;
}

.project-name {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 11px;
    margin-bottom: 4px;
}

.project-progress {
    display: flex;
    align-items: center;
    gap: 6px;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: #e0e0e0;
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), #42A5F5);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 9px;
    color: var(--dark-gray);
    min-width: 25px;
}

/* 任务管理区域 */
.task-management {
    background: white;
    border-radius: 8px;
    padding: 8px;
    border: 1px solid #e0e0e0;
    height: 100%;
    overflow: hidden;
}

.task-board {
    display: flex;
    gap: 6px;
    height: calc(100% - 25px);
}

.task-column {
    flex: 1;
    background: #f8f9fa;
    border-radius: 4px;
    padding: 6px;
}

.column-header {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 10px;
    margin-bottom: 6px;
    text-align: center;
}

.task-card {
    background: white;
    border-radius: 3px;
    padding: 6px;
    margin-bottom: 4px;
    border-left: 2px solid #e0e0e0;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.task-card.urgent {
    border-left-color: #f44336;
}

.task-card.normal {
    border-left-color: var(--primary-blue);
}

.task-card.review {
    border-left-color: #ff9800;
}

.task-title {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 10px;
    margin-bottom: 3px;
}

.task-assignee {
    font-size: 9px;
    color: var(--dark-gray);
    margin-bottom: 2px;
}

.task-deadline {
    font-size: 8px;
    color: #666;
}

/* 数据统计区域 */
.data-analytics {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 8px;
    height: 100%;
    overflow: hidden;
}

.stats-cards {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
}

.stat-card {
    background: white;
    border-radius: 4px;
    padding: 8px;
    text-align: center;
    border: 1px solid #e0e0e0;
}

.stat-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 2px;
}

.stat-label {
    font-size: 8px;
    color: var(--dark-gray);
}

.team-section {
    background: white;
    border-radius: 4px;
    padding: 8px;
    border: 1px solid #e0e0e0;
    height: calc(100% - 120px);
    overflow-y: auto;
}

.team-title {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 10px;
    margin-bottom: 6px;
}

.team-members {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.member-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.member-avatar {
    font-size: 12px;
}

.member-info {
    flex: 1;
}

.member-name {
    font-size: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.member-role {
    font-size: 7px;
    color: var(--dark-gray);
}

/* 其他产品模拟界面 */
.dashboard-mockup {
    width: 400px;
    height: 300px;
    background: var(--white);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border: 1px solid #e0e0e0;
}

.dashboard-header,
.education-header {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 20px;
    font-size: 16px;
    border-bottom: 2px solid var(--light-gray);
    padding-bottom: 10px;
}

.chart-area {
    background: var(--light-gray);
    height: 120px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark-gray);
    margin-bottom: 20px;
}

.status-indicators {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.indicator {
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    background: var(--light-gray);
    color: var(--dark-gray);
}

.indicator.active {
    background: #4CAF50;
    color: var(--white);
}

.indicator.warning {
    background: #FF9800;
    color: var(--white);
}

.device-grid,
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.device-card,
.stat-item {
    background: var(--primary-blue);
    color: var(--white);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
}

/* 轮播控制 */
.slider-controls {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
}

.slider-btn {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-btn.active {
    background: var(--accent-orange);
    transform: scale(1.2);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--dark-gray);
}

.scroll-arrow {
    font-size: 24px;
    animation: bounce 2s infinite;
    color: var(--accent-orange);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 产品矩阵区 */
.products-matrix {
    padding: 100px 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 25px;
    max-width: 1000px;
    margin: 0 auto;
}

.product-card {
    background: var(--white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.product-icon {
    font-size: 40px;
    text-align: center;
    margin-bottom: 16px;
}

.product-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
    text-align: center;
    line-height: 1.3;
}

.product-list {
    margin-bottom: 16px;
    flex-grow: 1;
}

.product-list p {
    color: var(--dark-gray);
    margin-bottom: 6px;
    font-size: 13px;
    line-height: 1.4;
}

.product-advantages {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.advantage-tag {
    background: var(--light-gray);
    color: var(--primary-blue);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
}

.customization-options {
    margin-bottom: 16px;
}

.customization-options h4 {
    color: var(--text-dark);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
}

.customization-options p {
    color: var(--dark-gray);
    font-size: 12px;
    line-height: 1.4;
}

.view-all-link {
    display: inline-block;
    color: var(--accent-orange);
    text-decoration: none;
    font-weight: 500;
    font-size: 13px;
    transition: color 0.3s ease;
    margin-top: auto;
    padding-top: 8px;
}

.view-all-link:hover {
    color: #e66a00;
}

/* 定制能力区 */
.customization-capabilities {
    padding: 100px 0;
    background: var(--light-gray);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.capability-card {
    background: var(--white);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.before-after {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    gap: 20px;
}

.before,
.after {
    flex: 1;
    text-align: center;
}

.before h4,
.after h4 {
    font-size: 14px;
    color: var(--dark-gray);
    margin-bottom: 10px;
}

.mockup-small {
    background: var(--light-gray);
    height: 80px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--dark-gray);
}

.arrow {
    font-size: 24px;
    color: var(--accent-orange);
    font-weight: bold;
}

.capability-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.capability-card p {
    color: var(--dark-gray);
    margin-bottom: 20px;
    line-height: 1.6;
}

.case-study {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-orange);
    font-size: 14px;
    color: var(--dark-gray);
}

/* 服务流程区 */
.service-process {
    padding: 100px 0;
    background: var(--white);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.step-content p {
    color: var(--dark-gray);
    margin-bottom: 15px;
    line-height: 1.6;
}

.step-highlight {
    background: var(--accent-orange);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    display: inline-block;
}

/* 合作保障区 */
.cooperation-guarantee {
    padding: 100px 0;
    background: var(--light-gray);
}

.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.guarantee-card {
    background: var(--white);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
}

.guarantee-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.guarantee-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.guarantee-card p {
    color: var(--dark-gray);
    margin-bottom: 25px;
    line-height: 1.6;
}

.comparison {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 20px;
}

.comparison-item {
    flex: 1;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    text-align: center;
}

.comparison-item.highlight {
    background: var(--primary-blue);
    color: var(--white);
}

.comparison-item .label {
    display: block;
    font-size: 12px;
    margin-bottom: 5px;
}

.comparison-item .value {
    font-size: 18px;
    font-weight: 700;
}

.vs {
    font-weight: 700;
    color: var(--accent-orange);
}

.stats {
    display: flex;
    justify-content: space-around;
    gap: 20px;
}

.stat {
    text-align: center;
}

.stat .number {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
}

.stat .label {
    font-size: 14px;
    color: var(--dark-gray);
}

/* 行动召唤区 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1565C0 100%);
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.btn-primary.large,
.btn-secondary.large {
    padding: 18px 35px;
    font-size: 16px;
}

.btn-secondary.large {
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--white);
}

.btn-secondary.large:hover {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.success-cases {
    text-align: left;
    max-width: 800px;
    margin: 0 auto;
}

.success-cases h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--white);
}

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

.cases span {
    background: rgba(255,255,255,0.2);
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 14px;
    backdrop-filter: blur(10px);
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: #bdc3c7;
    text-decoration: none;
    padding: 10px 15px;
    background: rgba(255,255,255,0.1);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 15px;
    }
    
    /* 移动端大型菜单调整 */
    .mega-dropdown .dropdown-content {
        min-width: 90vw;
        left: 5vw;
        transform: none;
        padding: 20px;
    }
    
    .mega-menu {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .mega-menu-section h4 {
        font-size: 14px;
    }
    
    .mega-menu-section a {
        font-size: 13px;
    }
    
    .slide-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    
    .slide-text h1 {
        font-size: 32px;
    }
    
    .slide-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .phone-frame {
        width: 250px;
        height: 500px;
    }
    
    .dashboard-mockup,
    .retail-mockup,
    .education-mockup {
        width: 300px;
        height: 250px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        gap: 20px;
        max-width: 100%;
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .process-timeline {
        grid-template-columns: 1fr;
    }
    
    .guarantee-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison {
        flex-direction: column;
        gap: 10px;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cases {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .slide-text h1 {
        font-size: 24px;
    }
    
    .slide-text p {
        font-size: 16px;
    }
    
    .phone-frame {
        width: 200px;
        height: 400px;
    }
    
    .dashboard-mockup,
    .retail-mockup,
    .education-mockup {
        width: 250px;
        height: 200px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .product-card,
    .capability-card,
    .guarantee-card {
        padding: 20px;
    }
    
    /* 手机端大型菜单单列布局 */
    .mega-menu {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .mega-dropdown .dropdown-content {
        min-width: 95vw;
        left: 2.5vw;
        padding: 15px;
    }
}

/* 新闻展示模块样式 */
.news-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 50px;
}

.news-featured {
    display: flex;
}

.news-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    height: fit-content;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.news-card.featured {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.news-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 14px;
    position: relative;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-category {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 15px;
    width: fit-content;
}

.news-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 15px 0;
    line-height: 1.4;
}

.news-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 10px 0;
    line-height: 1.4;
}

.news-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin: 0 0 20px 0;
    flex: 1;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--gray);
    margin-top: auto;
}

.news-date {
    font-weight: 500;
}

.news-views {
    color: var(--primary-blue);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-list .news-card {
    padding: 0;
}

.news-list .news-content {
    padding: 20px;
}

.news-more {
    text-align: center;
    margin-top: 50px;
}

/* 新闻模块响应式设计 */
@media (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .news-card.featured {
        flex-direction: column;
    }
    
    .news-image {
        height: 150px;
    }
    
    .news-content {
        padding: 20px;
    }
    
    .news-card h3 {
        font-size: 18px;
    }
    
    .news-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}

/* 产品详情页面样式 */
.product-detail-page {
    padding-top: 0;
}

/* 面包屑导航 */
.breadcrumb-section {
    background: var(--light-gray);
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.breadcrumb a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--secondary-blue);
}

.breadcrumb span {
    color: var(--gray);
}

/* 产品概览区 */
.product-overview {
    padding: 60px 0;
    background: var(--white);
}

.product-overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-images {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.main-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.image-placeholder {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.thumbnail-images {
    display: flex;
    gap: 15px;
}

.thumbnail {
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.thumbnail:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.thumbnail.active {
    box-shadow: 0 4px 15px rgba(0,123,255,0.3);
}

.product-info {
    padding: 20px 0;
}

.product-category {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 20px;
}

.product-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 15px 0;
    line-height: 1.2;
}

.product-subtitle {
    font-size: 18px;
    color: var(--dark-gray);
    margin: 0 0 40px 0;
    line-height: 1.5;
}

.product-highlights {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 40px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.highlight-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-blue);
    border-radius: 50%;
    flex-shrink: 0;
}

.highlight-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 5px 0;
}

.highlight-text p {
    font-size: 14px;
    color: var(--dark-gray);
    margin: 0;
    line-height: 1.5;
}

.product-actions {
    display: flex;
    gap: 15px;
}

/* 产品特性区 */
.product-features {
    padding: 80px 0;
    background: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 15px 0;
}

.feature-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin: 0;
}

/* 技术规格区 */
.tech-specs {
    padding: 80px 0;
    background: var(--white);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.specs-category h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-blue);
}

.specs-category ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.specs-category li {
    padding: 8px 0;
    color: var(--dark-gray);
    border-bottom: 1px solid var(--border-color);
}

.specs-category li:last-child {
    border-bottom: none;
}

/* 相关产品推荐 */
.related-products {
    padding: 80px 0;
    background: var(--light-gray);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.related-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.related-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.related-image {
    padding: 20px;
    background: var(--light-gray);
}

.related-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 20px 0 10px 0;
    padding: 0 20px;
}

.related-card p {
    color: var(--dark-gray);
    margin: 0 0 20px 0;
    padding: 0 20px;
}

.btn-outline {
    display: inline-block;
    padding: 10px 20px;
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
}

/* 产品详情页响应式设计 */
@media (max-width: 768px) {
    .product-overview-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-title {
        font-size: 28px;
    }
    
    .product-subtitle {
        font-size: 16px;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .features-grid,
    .specs-grid,
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .thumbnail-images {
        justify-content: center;
    }
}

/* 关于我们页面样式 */
.about-page {
    padding-top: 0;
}

/* 公司简介区 */
.company-intro {
    padding: 80px 0;
    background: var(--white);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 15px 0;
    line-height: 1.2;
}

.intro-subtitle {
    font-size: 20px;
    color: var(--primary-blue);
    margin: 0 0 30px 0;
    font-weight: 500;
}

.intro-text p {
    font-size: 16px;
    color: var(--dark-gray);
    line-height: 1.8;
    margin: 0 0 20px 0;
}

.intro-image {
    text-align: center;
}

/* 企业文化区 */
.company-culture {
    padding: 80px 0;
    background: var(--light-gray);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.culture-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.culture-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.culture-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.culture-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 15px 0;
}

.culture-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin: 0;
}

/* 发展历程区 */
.company-timeline {
    padding: 80px 0;
    background: var(--white);
}

.timeline {
    position: relative;
    margin-top: 50px;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-blue);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 60px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-blue);
    border: 3px solid var(--white);
    box-shadow: 0 0 0 3px var(--primary-blue);
}

.timeline-year {
    position: absolute;
    left: -50px;
    top: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-blue);
    background: var(--white);
    padding: 5px 0;
    min-width: 60px;
    text-align: center;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 10px 0;
}

.timeline-content p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin: 0;
}

/* 团队介绍区 */
.team-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.team-member {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.member-avatar {
    margin-bottom: 20px;
}

.team-member h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 5px 0;
}

.member-title {
    color: var(--primary-blue);
    font-weight: 500;
    margin: 0 0 15px 0;
}

.member-desc {
    color: var(--dark-gray);
    line-height: 1.6;
    margin: 0;
    font-size: 14px;
}

/* 企业优势区 */
.company-advantages {
    padding: 80px 0;
    background: var(--white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.advantage-item {
    text-align: center;
    padding: 30px 20px;
}

.advantage-number {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    font-size: 24px;
    font-weight: 700;
    line-height: 60px;
    margin-bottom: 20px;
}

.advantage-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 15px 0;
}

.advantage-item p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin: 0;
}

/* 联系我们区 */
.contact-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    text-align: center;
}

.contact-cta h2 {
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 15px 0;
}

.contact-cta p {
    font-size: 18px;
    margin: 0 0 40px 0;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary {
    background: var(--white);
    color: var(--primary-blue);
}

.cta-buttons .btn-primary:hover {
    background: var(--light-gray);
}

.cta-buttons .btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.cta-buttons .btn-secondary:hover {
    background: var(--white);
    color: var(--primary-blue);
}

/* 关于我们页面响应式设计 */
@media (max-width: 768px) {
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .page-title {
        font-size: 32px;
    }
    
    .intro-subtitle {
        font-size: 18px;
    }
    
    .culture-grid,
    .team-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 20px;
    }
    
    .timeline-item {
        padding-left: 40px;
    }
    
    .timeline-year {
        left: -35px;
        font-size: 14px;
        min-width: 45px;
    }
    
    .contact-cta h2 {
        font-size: 28px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* 联系我们页面样式 */
.contact-page {
    padding-top: 2rem;
}

.contact-info {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.contact-header {
    text-align: center;
    margin-bottom: 4rem;
}

.contact-header .page-title {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.contact-header .page-subtitle {
    font-size: 1.2rem;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-methods {
    display: grid;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    color: white;
    flex-shrink: 0;
}

.contact-details h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.contact-details p {
    color: #6c757d;
    margin-bottom: 0.25rem;
    line-height: 1.5;
}

.contact-form-section {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.contact-form-section h2 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.contact-form-section > p {
    color: #6c757d;
    margin-bottom: 2rem;
}

.contact-form {
    display: grid;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: #6c757d;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkbox-label a {
    color: #007bff;
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.submit-btn {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    justify-self: start;
}

.submit-btn:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* 地图区域 */
.map-section {
    padding: 4rem 0;
    background: white;
}

.map-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.map-placeholder {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.map-info {
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.map-info h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.transport-info {
    display: grid;
    gap: 1rem;
}

.transport-item strong {
    color: #007bff;
    display: block;
    margin-bottom: 0.25rem;
}

.transport-item p {
    color: #6c757d;
    margin: 0;
    line-height: 1.5;
}

/* 服务承诺区 */
.service-promise {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.promise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.promise-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.promise-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.promise-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.promise-item h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.promise-item p {
    color: #6c757d;
    line-height: 1.6;
}

/* FAQ区域 */
.faq-section {
    padding: 4rem 0;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 2rem auto 0;
}

.faq-item {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.faq-question {
    padding: 1.5rem;
    background: #f8f9fa;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: #e9ecef;
}

.faq-question h3 {
    margin: 0;
    color: #2c3e50;
    font-size: 1.1rem;
    font-weight: 500;
}

.faq-toggle {
    font-size: 1.5rem;
    color: #007bff;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    padding: 1.5rem;
    margin: 0;
    color: #6c757d;
    line-height: 1.6;
    background: white;
}

/* 联系我们页面响应式设计 */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .map-container {
        grid-template-columns: 1fr;
    }
    
    .promise-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-header .page-title {
        font-size: 2rem;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        align-self: center;
    }
}

/* 新闻动态页面样式 */
.news-page {
    padding-top: 2rem;
}

.news-header {
    padding: 4rem 0 2rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    text-align: center;
}

.news-header .page-title {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.news-header .page-subtitle {
    font-size: 1.2rem;
    color: #6c757d;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.news-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid #e9ecef;
    background: white;
    color: #6c757d;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn:hover {
    border-color: #007bff;
    color: #007bff;
}

.filter-btn.active {
    background: #007bff;
    border-color: #007bff;
    color: white;
}

/* 特色新闻区 */
.featured-news {
    padding: 4rem 0;
    background: white;
}

.featured-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.featured-main {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.featured-main:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.featured-main .news-content {
    padding: 2rem;
}

.featured-main h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.featured-main p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.featured-side {
    display: grid;
    gap: 1rem;
}

.featured-item {
    display: flex;
    gap: 1rem;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.featured-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.featured-item .news-image {
    flex-shrink: 0;
    width: 120px;
}

.featured-item .news-content {
    padding: 1rem;
    flex: 1;
}

.featured-item h4 {
    font-size: 1rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

/* 新闻列表区 */
.news-list-section {
    padding: 4rem 0;
    background: #f8f9fa;
}

.news-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.news-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.news-card .news-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.news-card .news-content {
    padding: 1.5rem;
}

.news-card h3 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-card p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.news-category.company {
    background: #007bff;
    color: white;
}

.news-category.technology {
    background: #28a745;
    color: white;
}

.news-category.product {
    background: #ffc107;
    color: #212529;
}

.news-category.industry {
    background: #dc3545;
    color: white;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #6c757d;
    font-size: 0.9rem;
}

.news-date {
    color: #6c757d;
}

.news-views {
    color: #6c757d;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.page-btn {
    padding: 0.75rem 1rem;
    border: 1px solid #e9ecef;
    background: white;
    color: #6c757d;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.page-btn:hover {
    background: #f8f9fa;
    border-color: #007bff;
    color: #007bff;
}

.page-btn.active {
    background: #007bff;
    border-color: #007bff;
    color: white;
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 侧边栏 */
.news-sidebar {
    display: grid;
    gap: 2rem;
    align-content: start;
}

.sidebar-widget {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.sidebar-widget h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    border-bottom: 2px solid #007bff;
    padding-bottom: 0.5rem;
}

/* 搜索框 */
.search-box {
    display: flex;
    gap: 0.5rem;
}

.search-box input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    font-size: 1rem;
}

.search-box input:focus {
    outline: none;
    border-color: #007bff;
}

.search-btn {
    padding: 0.75rem 1rem;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-btn:hover {
    background: #0056b3;
}

/* 热门文章 */
.popular-news {
    display: grid;
    gap: 1rem;
}

.popular-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-radius: 8px;
    transition: background-color 0.3s ease;
    cursor: pointer;
}

.popular-item:hover {
    background: #f8f9fa;
}

.popular-image {
    flex-shrink: 0;
    border-radius: 6px;
    overflow: hidden;
}

.popular-content h4 {
    font-size: 0.9rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.popular-date {
    font-size: 0.8rem;
    color: #6c757d;
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.5rem 1rem;
    background: #f8f9fa;
    color: #6c757d;
    border-radius: 15px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tag:hover {
    background: #007bff;
    color: white;
}

/* 订阅表单 */
.subscribe-form {
    display: grid;
    gap: 1rem;
}

.subscribe-form input {
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    font-size: 1rem;
}

.subscribe-form input:focus {
    outline: none;
    border-color: #007bff;
}

.subscribe-btn {
    padding: 0.75rem;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.subscribe-btn:hover {
    background: #0056b3;
}

/* 新闻动态页面响应式设计 */
@media (max-width: 768px) {
    .news-header .page-title {
        font-size: 2rem;
    }
    
    .news-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    .featured-item {
        flex-direction: column;
    }
    
    .featured-item .news-image {
        width: 100%;
        height: 150px;
    }
    
    .news-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .sidebar-widget {
        padding: 1.5rem;
    }
    
    .popular-item {
        flex-direction: column;
        text-align: center;
    }
    
    .search-box {
        flex-direction: column;
    }
}