/* 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;
    --primary-green: #4CAF50;
    --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 {
    margin-top: 80px;
    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;
}

/* 旧的定制能力区样式已移至新位置，此处删除避免冲突 */

.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;
    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;
    }
}

/* 解决方案页面样式 */
.solutions-page {
    padding-top: 0;
}

/* 页面头部 */
.page-header {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1565C0 100%);
    color: var(--white);
    text-align: center;
    margin-top: 80px;
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-header p {
    font-size: 20px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 解决方案网格 */
.solutions-grid {
    padding: 80px 0;
    background: var(--white);
}

.solutions-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.solution-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.solution-image {
    overflow: hidden;
}

.solution-image img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.solution-card:hover .solution-image img {
    transform: scale(1.05);
}

.solution-content {
    padding: 30px;
}

.solution-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
    line-height: 1.3;
}

.solution-content p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 16px;
}

.solution-features {
    list-style: none;
    margin-bottom: 25px;
}

.solution-features li {
    color: var(--dark-gray);
    padding: 8px 0;
    position: relative;
    padding-left: 20px;
    font-size: 14px;
}

.solution-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* 服务优势 */
.service-advantages {
    padding: 80px 0;
    background: var(--light-gray);
}

.service-advantages h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.advantage-item {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.advantage-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

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

.advantage-item p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 14px;
}

/* 合作流程 */
.cooperation-process {
    padding: 80px 0;
    background: var(--white);
}

.cooperation-process h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.process-steps:before {
    content: "";
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--light-gray);
    z-index: 1;
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
    box-shadow: 0 5px 15px rgba(30, 136, 229, 0.3);
}

.step h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

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

/* 联系我们CTA */
.contact-cta {
    padding: 80px 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;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* 解决方案页面响应式设计 */
@media (max-width: 768px) {
    .page-header {
        padding: 100px 0 60px;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    .page-header p {
        font-size: 16px;
    }
    
    .solutions-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .solution-content {
        padding: 25px;
    }
    
    .solution-content h3 {
        font-size: 20px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .process-steps {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .process-steps:before {
        display: none;
    }
    
    @media (max-width: 768px) {
        .process-steps {
            flex-direction: column;
            gap: 30px;
        }
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .service-advantages h2,
    .cooperation-process h2 {
        font-size: 28px;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
}

/* 解决方案详情页面样式 */
.solution-detail-page {
    padding-top: 0;
}

/* 解决方案概述网格布局 */
.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.overview-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 30px;
    line-height: 1.3;
}

.overview-content p {
    color: var(--dark-gray);
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 16px;
}

.overview-features {
    list-style: none;
    margin-top: 30px;
}

.overview-features li {
    color: var(--dark-gray);
    padding: 10px 0;
    position: relative;
    padding-left: 25px;
    font-size: 16px;
}

.overview-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
    font-size: 18px;
}

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

.overview-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 服务内容网格 */
.services-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.services-section h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.service-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
    line-height: 1.3;
}

.service-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 15px;
}

.service-card ul {
    list-style: none;
    text-align: left;
}

.service-card ul li {
    color: var(--dark-gray);
    padding: 6px 0;
    position: relative;
    padding-left: 20px;
    font-size: 14px;
}

.service-card ul li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* 技术优势 */
.tech-advantages {
    padding: 80px 0;
    background: var(--white);
}

.tech-advantages h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.advantages-list {
    max-width: 800px;
    margin: 0 auto;
}

.advantage-point {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    padding: 25px;
    background: var(--light-gray);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.advantage-point:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.advantage-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-right: 20px;
    flex-shrink: 0;
}

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

.advantage-content p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 15px;
}

/* 成功案例 */
.success-cases {
    padding: 80px 0;
    background: var(--light-gray);
}

.success-cases h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.case-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.case-image {
    height: 200px;
    background: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--primary-blue);
}

.case-content {
    padding: 25px;
}

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

.case-content p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 14px;
}

/* 解决方案详情页响应式设计 */
@media (max-width: 768px) {
    .solution-hero {
        padding: 100px 0 60px;
    }
    
    .solution-hero h1 {
        font-size: 32px;
    }
    
    .solution-hero p {
        font-size: 16px;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .overview-content h2 {
        font-size: 28px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .service-card {
        padding: 30px 25px;
    }
    
    .advantage-point {
        flex-direction: column;
        text-align: center;
    }
    
    .advantage-number {
        margin: 0 auto 15px;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-advantages h2,
    .services-section h2,
    .success-cases h2 {
        font-size: 28px;
    }
}

/* 解决方案详情页面样式 */
.solution-detail-page {
    padding-top: 0;
}



/* 解决方案概览 */
.solution-overview {
    padding: 80px 0;
    background: var(--white);
}

.solution-overview .container {
    max-width: 1200px;
    margin: 0 auto;
}

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

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

.solution-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

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

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

.solution-highlights {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.highlight-tag {
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.solution-description {
    color: var(--dark-gray);
    line-height: 1.8;
    margin-bottom: 30px;
    font-size: 16px;
}

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

/* 概览关键指标 */
.solution-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.metric {
    background: var(--light-gray);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

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

.metric-label {
    font-size: 12px;
    color: var(--dark-gray);
}

/* 核心服务 */
.core-services {
    padding: 80px 0;
    background: var(--light-gray);
}

.core-services h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

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

.service-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 14px;
}

.service-card ul {
    list-style: none;
    text-align: left;
}

.service-card ul li {
    color: var(--dark-gray);
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
    font-size: 14px;
}

.service-card ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* 技术优势 */
.tech-advantages {
    padding: 80px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--dark-gray);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.advantage-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.advantage-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon-wrapper {
    background: #1565C0;
    transform: scale(1.05);
}

.advantage-icon {
    font-size: 24px;
    color: var(--white);
}

.advantage-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.advantage-content p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 14px;
    margin-bottom: 15px;
}

.advantage-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.feature-tag {
    background: var(--light-gray);
    color: var(--primary-blue);
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 11px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: var(--primary-blue);
    color: var(--white);
}

/* 成功案例 */
.success-cases {
    padding: 80px 0;
    background: var(--light-gray);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.case-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.case-image {
    height: 180px;
    background: var(--primary-blue);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-overlay {
    text-align: center;
    color: var(--white);
}

.case-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.case-category {
    font-size: 12px;
    font-weight: 500;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-stats { display: none; }

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 10px;
    color: var(--dark-gray);
    margin-top: 2px;
    font-weight: 500;
}

.case-content {
    padding: 25px;
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.case-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
    flex: 1;
}

.case-badge {
    background: var(--accent-orange);
    color: var(--white);
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    margin-left: 10px;
    white-space: nowrap;
}

.case-content p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 14px;
    margin-bottom: 15px;
}

.case-features {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.case-footer {
    border-top: 1px solid #f0f0f0;
    padding-top: 15px;
}

.case-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.3s ease;
    padding: 10px 15px;
    background: var(--light-gray);
    border-radius: 8px;
}

.case-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateX(3px);
}

.case-link svg {
    transition: transform 0.3s ease;
}

.case-link:hover svg {
    transform: translateX(2px);
}

/* 合作品牌 */
.trusted-brands {
    padding: 64px 0;
    background: #fff;
}

.brand-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
}

.brand-item {
    background: var(--light-gray);
    border-radius: 10px;
    padding: 18px 12px;
    text-align: center;
    color: var(--dark-gray);
    font-weight: 600;
}

/* 为什么选择我们 */
.why-choose {
    padding: 64px 0;
    background: #fff;
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1040px;
    margin: 0 auto;
}

.reason-card {
    background: var(--white);
    border: 1px solid #eef0f3;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.reason-icon {
    font-size: 28px;
    margin-bottom: 10px;
}

/* 客户评价 */
.testimonials {
    padding: 64px 0;
    background: var(--light-gray);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1040px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--white);
    border-radius: 12px;
    padding: 22px;
    box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.testimonial-quote {
    color: var(--text-dark);
    font-weight: 600;
}

.testimonial-author {
    margin-top: 10px;
    color: var(--dark-gray);
    font-size: 13px;
}

/* 解决方案详情页面响应式设计 */
@media (max-width: 768px) {
    .solution-metrics { grid-template-columns: 1fr; }
    .solution-hero {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .solution-info h1 {
        font-size: 32px;
    }
    
    .solution-subtitle {
        font-size: 18px;
    }
    
    .solution-actions {
        flex-direction: column;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .overview-content h2 {
        font-size: 28px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .advantage-point {
        padding: 25px 20px;
    }
    
    .advantage-number {
        font-size: 32px;
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .brand-grid { grid-template-columns: repeat(3, 1fr); }
    .reasons-grid { grid-template-columns: 1fr; }
    .testimonial-grid { grid-template-columns: 1fr; }
    
    @media (max-width: 768px) {
        .cases-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
    }
    
    .case-card {
        margin: 0 10px;
    }
    
    .case-image {
        height: 150px;
    }
    
    .case-icon {
        font-size: 28px;
    }
    
    .case-content {
        padding: 20px 15px;
    }
    
    .case-header h3 {
        font-size: 16px;
    }
    
    .case-badge {
        font-size: 9px;
        padding: 2px 6px;
    }
    
    .case-content p {
        font-size: 13px;
    }
    
    .case-stats { display: none; }
    
    .stat-number {
        font-size: 14px;
    }
    
    .stat-label {
        font-size: 9px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 14px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantage-card {
        padding: 25px 20px;
    }
    
    .advantage-icon-wrapper {
        width: 50px;
        height: 50px;
        margin-bottom: 15px;
    }
    
    .advantage-icon {
        font-size: 20px;
    }
    
    .advantage-content h3 {
        font-size: 16px;
    }
    
    .advantage-content p {
        font-size: 13px;
    }
    
    .tech-advantages h2,
    .success-cases h2 {
        font-size: 28px;
    }
}

/* 解决方案详情页面样式 */
.solution-detail-page {
    padding-top: 0;
}



/* 解决方案概览 */
.solution-overview {
    padding: 80px 0;
    background: var(--white);
}

.solution-overview .container {
    max-width: 1200px;
    margin: 0 auto;
}

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

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

.solution-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

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

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

.solution-highlights {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.highlight-tag {
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.solution-description {
    color: var(--dark-gray);
    line-height: 1.8;
    margin-bottom: 30px;
    font-size: 16px;
}

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

/* 概览关键指标 */
.solution-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.metric {
    background: var(--light-gray);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

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

.metric-label {
    font-size: 12px;
    color: var(--dark-gray);
}

/* 核心服务 */
.core-services {
    padding: 80px 0;
    background: var(--light-gray);
}

.core-services h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

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

.service-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 14px;
}

.service-card ul {
    list-style: none;
    text-align: left;
}

.service-card ul li {
    color: var(--dark-gray);
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
    font-size: 14px;
}

.service-card ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* 技术优势 */
.tech-advantages {
    padding: 80px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--dark-gray);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.advantage-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.advantage-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon-wrapper {
    background: #1565C0;
    transform: scale(1.05);
}

.advantage-icon {
    font-size: 24px;
    color: var(--white);
}

.advantage-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.advantage-content p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 14px;
    margin-bottom: 15px;
}

.advantage-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.feature-tag {
    background: var(--light-gray);
    color: var(--primary-blue);
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 11px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: var(--primary-blue);
    color: var(--white);
}

/* 成功案例 */
.success-cases {
    padding: 80px 0;
    background: var(--light-gray);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.case-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.case-image {
    height: 180px;
    background: var(--primary-blue);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-overlay {
    text-align: center;
    color: var(--white);
}

.case-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.case-category {
    font-size: 12px;
    font-weight: 500;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-stats { display: none; }

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 10px;
    color: var(--dark-gray);
    margin-top: 2px;
    font-weight: 500;
}

.case-content {
    padding: 25px;
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.case-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
    flex: 1;
}

.case-badge {
    background: var(--accent-orange);
    color: var(--white);
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    margin-left: 10px;
    white-space: nowrap;
}

.case-content p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 14px;
    margin-bottom: 15px;
}

.case-features {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.case-footer {
    border-top: 1px solid #f0f0f0;
    padding-top: 15px;
}

.case-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.3s ease;
    padding: 10px 15px;
    background: var(--light-gray);
    border-radius: 8px;
}

.case-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateX(3px);
}

.case-link svg {
    transition: transform 0.3s ease;
}

.case-link:hover svg {
    transform: translateX(2px);
}

/* 合作品牌 */
.trusted-brands {
    padding: 64px 0;
    background: #fff;
}

.brand-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
}

.brand-item {
    background: var(--light-gray);
    border-radius: 10px;
    padding: 18px 12px;
    text-align: center;
    color: var(--dark-gray);
    font-weight: 600;
}

/* 为什么选择我们 */
.why-choose {
    padding: 64px 0;
    background: #fff;
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1040px;
    margin: 0 auto;
}

.reason-card {
    background: var(--white);
    border: 1px solid #eef0f3;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.reason-icon {
    font-size: 28px;
    margin-bottom: 10px;
}

/* 客户评价 */
.testimonials {
    padding: 64px 0;
    background: var(--light-gray);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1040px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--white);
    border-radius: 12px;
    padding: 22px;
    box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.testimonial-quote {
    color: var(--text-dark);
    font-weight: 600;
}

.testimonial-author {
    margin-top: 10px;
    color: var(--dark-gray);
    font-size: 13px;
}

/* 解决方案详情页面响应式设计 */
@media (max-width: 768px) {
    .solution-metrics { grid-template-columns: 1fr; }
    .solution-hero {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .solution-info h1 {
        font-size: 32px;
    }
    
    .solution-subtitle {
        font-size: 18px;
    }
    
    .solution-actions {
        flex-direction: column;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .overview-content h2 {
        font-size: 28px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .advantage-point {
        padding: 25px 20px;
    }
    
    .advantage-number {
        font-size: 32px;
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .brand-grid { grid-template-columns: repeat(3, 1fr); }
    .reasons-grid { grid-template-columns: 1fr; }
    .testimonial-grid { grid-template-columns: 1fr; }
    
    @media (max-width: 768px) {
        .cases-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
    }
    
    .case-card {
        margin: 0 10px;
    }
    
    .case-image {
        height: 150px;
    }
    
    .case-icon {
        font-size: 28px;
    }
    
    .case-content {
        padding: 20px 15px;
    }
    
    .case-header h3 {
        font-size: 16px;
    }
    
    .case-badge {
        font-size: 9px;
        padding: 2px 6px;
    }
    
    .case-content p {
        font-size: 13px;
    }
    
    .case-stats { display: none; }
    
    .stat-number {
        font-size: 14px;
    }
    
    .stat-label {
        font-size: 9px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 14px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantage-card {
        padding: 25px 20px;
    }
    
    .advantage-icon-wrapper {
        width: 50px;
        height: 50px;
        margin-bottom: 15px;
    }
    
    .advantage-icon {
        font-size: 20px;
    }
    
    .advantage-content h3 {
        font-size: 16px;
    }
    
    .advantage-content p {
        font-size: 13px;
    }
    
    .tech-advantages h2,
    .success-cases h2 {
        font-size: 28px;
    }
}

/* 智慧工业页面特有样式 */

/* 合作品牌 */
.partner-brands {
    padding: 80px 0;
    background: var(--white);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.brand-item {
    background: var(--light-gray);
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.brand-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: var(--primary-blue);
}

.brand-logo {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

.brand-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
}

/* 为什么选择我们 */
.why-choose-us {
    padding: 80px 0;
    background: var(--light-gray);
}

.choose-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.choose-card {
    background: var(--white);
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.choose-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.choose-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

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

.choose-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 14px;
}

/* 客户评价 */
.customer-testimonials {
    padding: 80px 0;
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--light-gray);
    border-radius: 12px;
    padding: 30px 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.testimonial-quote {
    color: var(--text-dark);
    line-height: 1.6;
    font-size: 15px;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    border-top: 2px solid var(--primary-blue);
    padding-top: 15px;
}

.author-info {
    text-align: center;
}

.author-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.author-title {
    font-size: 13px;
    color: var(--dark-gray);
}

/* 技术架构图 */
.tech-architecture {
    padding: 80px 0;
    background: var(--white);
}

.tech-architecture h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.architecture-diagram {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.arch-layer {
    background: var(--light-gray);
    border-radius: 12px;
    padding: 24px;
    border-left: 4px solid var(--primary-blue);
}

.arch-layer h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.arch-components {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.arch-components span {
    background: var(--white);
    color: var(--primary-blue);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--primary-blue);
}

/* 应用场景 */
.application-scenarios {
    padding: 80px 0;
    background: var(--light-gray);
}

.application-scenarios h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.scenario-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.scenario-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

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

.scenario-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 14px;
}

/* 智慧工业页面响应式设计 */
@media (max-width: 1024px) {
    .brands-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 25px;
    }
    
    .choose-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .brands-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .brand-item {
        padding: 25px 15px;
    }
    
    .brand-logo {
        font-size: 36px;
        margin-bottom: 10px;
    }
    
    .brand-name {
        font-size: 12px;
    }
    
    .choose-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .choose-card {
        padding: 30px 20px;
    }
    
    .choose-icon {
        font-size: 36px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .testimonial-card {
        padding: 25px 20px;
    }
    
    .architecture-diagram {
        gap: 15px;
    }
    
    .arch-layer {
        padding: 20px;
    }
    
    .arch-components {
        gap: 8px;
    }
    
    .arch-components span {
        font-size: 12px;
        padding: 6px 12px;
    }
    
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .scenario-card {
        padding: 30px 20px;
    }
    
    .scenario-icon {
        font-size: 36px;
    }
    
    .scenario-card h3 {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .brand-item {
        padding: 20px 10px;
    }
    
    .brand-logo {
        font-size: 32px;
        margin-bottom: 8px;
    }
    
    .brand-name {
        font-size: 11px;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .arch-components {
        flex-direction: column;
    }
    
    .arch-components span {
        text-align: center;
    }
}

/* 无人售货页面特有样式 */

/* 产品矩阵 */
.product-matrix {
    padding: 80px 0;
    background: var(--white);
}

.product-matrix h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.matrix-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.matrix-category {
    background: var(--light-gray);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.matrix-category h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 25px;
    text-align: center;
    border-bottom: 2px solid var(--accent-orange);
    padding-bottom: 15px;
}

.matrix-items {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.matrix-item {
    display: block;
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    text-decoration: none;
    color: var(--text-dark);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.matrix-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    border-color: var(--accent-orange);
    color: var(--text-dark);
}

.matrix-item img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 15px;
}

.matrix-item span {
    display: block;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
}

/* 无人售货页面响应式设计 */
@media (max-width: 768px) {
    .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .matrix-category {
        padding: 20px;
    }
    
    .matrix-category h3 {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .matrix-item {
        padding: 15px;
    }
    
    .matrix-item img {
        height: 60px;
    }
    
    .matrix-item span {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .matrix-grid {
        grid-template-columns: 1fr;
    }
    
    .matrix-category h3 {
        font-size: 18px;
    }
    
    .matrix-item img {
        height: 50px;
    }
    
    .matrix-item span {
        font-size: 13px;
    }
}

/* 高校信息化管理页面特有样式 */

/* 产品体系 */
.product-system {
    padding: 80px 0;
    background: var(--light-gray);
}

.product-system h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 60px;
}

.system-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.system-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.system-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    border-color: var(--primary-green);
}

.system-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.system-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.system-card p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 25px;
    font-size: 14px;
}

.system-link {
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-block;
    padding: 10px 20px;
    border: 2px solid var(--primary-green);
    border-radius: 25px;
    background: transparent;
}

.system-link:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateX(3px);
}

/* 技术架构（高校版本） */
.tech-architecture .architecture-layers {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.architecture-layers .arch-layer {
    background: var(--light-gray);
    border-radius: 12px;
    padding: 24px;
    border-left: 4px solid var(--primary-green);
}

.architecture-layers .arch-layer h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.arch-items {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.arch-items span {
    background: var(--white);
    color: var(--primary-green);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--primary-green);
}

/* 高校页面响应式设计 */
@media (max-width: 768px) {
    .system-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .system-card {
        padding: 30px 20px;
    }
    
    .system-icon {
        font-size: 36px;
    }
    
    .system-card h3 {
        font-size: 20px;
    }
    
    .system-link {
        font-size: 14px;
        padding: 8px 16px;
    }
    
    .architecture-layers .arch-layer {
        padding: 20px;
    }
    
    .arch-items {
        gap: 8px;
    }
    
    .arch-items span {
        font-size: 12px;
        padding: 6px 12px;
    }
}

@media (max-width: 480px) {
    .arch-items {
        flex-direction: column;
    }
    
    .arch-items span {
        text-align: center;
    }
}

/* ========================================
   技术支持中心 - 适配规范页面样式
======================================== */

/* 支持页面头部 */
.support-hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-bottom: 1px solid #e2e8f0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #64748b;
}

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

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

.support-hero h1 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 18px;
    color: #64748b;
    line-height: 1.6;
    max-width: 800px;
}

/* 搜索区域 */
.support-search {
    padding: 40px 0;
    background: var(--white);
    border-bottom: 1px solid #e2e8f0;
}

.search-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.search-bar {
    margin-bottom: 24px;
}

.search-input-group {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-input {
    width: 100%;
    padding: 16px 20px 16px 24px;
    font-size: 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    background: var(--white);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    padding: 12px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-btn:hover {
    background: var(--secondary-blue);
}

.search-filters {
    display: flex;
    gap: 16px;
    align-items: end;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
}

.filter-select {
    padding: 10px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: var(--white);
    font-size: 14px;
    color: var(--text-dark);
    cursor: pointer;
    min-width: 140px;
    transition: border-color 0.3s ease;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.filter-reset {
    padding: 10px 20px;
    background: #f8fafc;
    color: #64748b;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.filter-reset:hover {
    background: #e2e8f0;
    color: var(--text-dark);
}

/* 文档分类导航 */
.doc-categories {
    padding: 20px 0;
    background: var(--white);
    border-bottom: 1px solid #e2e8f0;
}

.category-tabs {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.category-tab {
    padding: 12px 24px;
    background: #f8fafc;
    color: #64748b;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.category-tab:hover {
    background: #e2e8f0;
    color: var(--text-dark);
}

.category-tab.active {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

/* 文档内容布局 */
.doc-content {
    padding: 40px 0 80px;
    background: var(--white);
}

.content-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

/* 左侧文档列表 */
.doc-sidebar {
    background: #f8fafc;
    border-radius: 12px;
    padding: 24px;
    height: fit-content;
    position: sticky;
    top: 120px;
}

.sidebar-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e2e8f0;
}

.sidebar-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.doc-count {
    font-size: 14px;
    color: #64748b;
}

.doc-tree {
    max-height: calc(100vh - 300px);
    overflow-y: auto;
}

.doc-category-section {
    margin-bottom: 24px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--white);
    border-radius: 8px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.category-header:hover {
    background: #f1f5f9;
}

.category-icon {
    font-size: 20px;
}

.category-header h4 {
    flex: 1;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.doc-badge {
    background: var(--primary-blue);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.doc-list {
    padding-left: 16px;
}

.doc-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 6px;
}

.doc-item:hover {
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.doc-item.active {
    background: var(--primary-blue);
    color: var(--white);
}

.doc-icon {
    font-size: 16px;
    opacity: 0.7;
}

.doc-info {
    flex: 1;
}

.doc-title {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    line-height: 1.4;
}

.doc-meta {
    display: flex;
    gap: 8px;
    font-size: 12px;
    opacity: 0.8;
    flex-wrap: wrap;
}

.doc-type, .doc-version, .doc-date {
    padding: 2px 6px;
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
}

.doc-item.active .doc-type,
.doc-item.active .doc-version,
.doc-item.active .doc-date {
    background: rgba(255,255,255,0.2);
}

/* 右侧文档查看器 */
.doc-viewer {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    overflow: hidden;
}

.doc-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 32px;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
}

.doc-title-section h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.doc-meta-info {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.doc-version-badge {
    background: var(--primary-blue);
    color: var(--white);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
}

.doc-date, .doc-author {
    font-size: 14px;
    color: #64748b;
}

.doc-actions {
    display: flex;
    gap: 12px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--white);
    color: var(--text-dark);
    border: 1px solid #d1d5db;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.action-btn:hover {
    background: #f8fafc;
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

/* 文档目录 */
.doc-toc {
    padding: 24px 32px;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
}

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

.toc-header h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.toc-toggle {
    background: none;
    border: none;
    color: var(--primary-blue);
    cursor: pointer;
    font-size: 14px;
    padding: 4px 8px;
}

.toc-list {
    list-style: none;
    padding: 0;
}

.toc-list li {
    margin-bottom: 8px;
}

.toc-link {
    display: block;
    padding: 8px 12px;
    color: #64748b;
    text-decoration: none;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.toc-link:hover {
    background: var(--white);
    color: var(--text-dark);
}

.toc-link.active {
    background: var(--primary-blue);
    color: var(--white);
}

/* 文档正文内容 */
.doc-content-body {
    padding: 32px;
}

.doc-content-body section {
    margin-bottom: 48px;
}

.doc-content-body h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid #e2e8f0;
}

.doc-content-body h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 24px 0 16px;
}

.doc-content-body h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 20px 0 12px;
}

.content-block {
    margin-bottom: 32px;
}

.content-block p {
    margin-bottom: 16px;
    line-height: 1.7;
    color: #374151;
}

.content-block ul, .content-block ol {
    margin: 16px 0;
    padding-left: 24px;
}

.content-block li {
    margin-bottom: 8px;
    line-height: 1.6;
    color: #374151;
}

/* 信息框 */
.info-box {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    margin: 24px 0;
}

.info-icon {
    font-size: 20px;
    color: var(--primary-blue);
}

.info-content {
    flex: 1;
    color: #1e40af;
}

.warning-box {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: #fefce8;
    border: 1px solid #fde047;
    border-radius: 8px;
    margin: 24px 0;
}

.warning-icon {
    font-size: 20px;
    color: #ca8a04;
}

.warning-content {
    flex: 1;
    color: #92400e;
}

/* 规格表格 */
.spec-table, .data-format-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.spec-table th, .data-format-table th {
    background: #f8fafc;
    color: var(--text-dark);
    font-weight: 600;
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.spec-table td, .data-format-table td {
    padding: 16px;
    border-bottom: 1px solid #f1f5f9;
    color: #374151;
}

.spec-table tr:last-child td, .data-format-table tr:last-child td {
    border-bottom: none;
}

/* 代码块 */
.code-block {
    margin: 24px 0;
    background: #1e293b;
    border-radius: 8px;
    overflow: hidden;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: #334155;
    border-bottom: 1px solid #475569;
}

.code-title {
    color: #e2e8f0;
    font-size: 14px;
    font-weight: 500;
}

.copy-btn {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.copy-btn:hover {
    background: var(--secondary-blue);
}

.code-block pre {
    padding: 24px;
    margin: 0;
    overflow-x: auto;
    background: #1e293b;
}

.code-block code {
    color: #e2e8f0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
}

/* 命令网格 */
.command-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.command-card {
    background: var(--white);
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
}

.command-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    border-color: var(--primary-blue);
}

.command-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.command-code {
    background: var(--primary-blue);
    color: var(--white);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    font-family: monospace;
}

.command-header h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

.command-details p {
    margin-bottom: 8px;
    font-size: 14px;
    line-height: 1.5;
}

/* FAQ部分 */
.faq-list {
    margin: 24px 0;
}

.faq-item {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: #f8fafc;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: #f1f5f9;
}

.faq-question h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
    flex: 1;
}

.faq-toggle {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--primary-blue);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.faq-toggle:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.faq-answer {
    padding: 20px;
    background: var(--white);
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

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

/* 文档底部 */
.doc-footer {
    padding: 32px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
}

.doc-feedback {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e2e8f0;
}

.doc-feedback h4 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.feedback-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.feedback-btn {
    padding: 10px 20px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: var(--white);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.feedback-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.feedback-btn.positive:hover {
    background: #dcfce7;
    border-color: #16a34a;
    color: #16a34a;
}

.feedback-btn.negative:hover {
    background: #fef2f2;
    border-color: #dc2626;
    color: #dc2626;
}

.doc-navigation {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.nav-btn {
    flex: 1;
    max-width: 200px;
    padding: 16px 20px;
    background: var(--white);
    border: 1px solid #d1d5db;
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.1);
}

.nav-btn span {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.nav-btn small {
    color: #64748b;
    font-size: 12px;
}

/* 快速帮助 */
.quick-help {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 1000;
}

.help-trigger {
    width: 56px;
    height: 56px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.help-trigger:hover {
    background: var(--secondary-blue);
    transform: scale(1.1);
}

.help-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 320px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    display: none;
}

.help-panel.active {
    display: block;
}

.help-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e2e8f0;
}

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

.help-close {
    background: none;
    border: none;
    font-size: 20px;
    color: #64748b;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.help-close:hover {
    background: #f1f5f9;
    color: var(--text-dark);
}

.help-options {
    padding: 12px;
}

.help-option {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-dark);
    transition: background-color 0.3s ease;
    margin-bottom: 8px;
}

.help-option:hover {
    background: #f8fafc;
}

.help-icon {
    font-size: 20px;
    width: 32px;
    text-align: center;
}

.help-option strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}

.help-option small {
    font-size: 12px;
    color: #64748b;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .content-layout {
        grid-template-columns: 280px 1fr;
        gap: 30px;
    }
    
    .doc-sidebar {
        padding: 20px;
    }
}

@media (max-width: 968px) {
    .content-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .doc-sidebar {
        position: static;
        order: 2;
        margin-top: 20px;
    }
    
    .doc-viewer {
        order: 1;
    }
    
    .search-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .doc-header {
        flex-direction: column;
        gap: 20px;
        align-items: stretch;
    }
    
    .doc-actions {
        justify-content: flex-start;
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .support-hero {
        padding: 100px 0 40px;
    }
    
    .support-hero h1 {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .search-input-group {
        max-width: 100%;
    }
    
    .category-tabs {
        gap: 6px;
    }
    
    .category-tab {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .doc-content-body {
        padding: 24px 20px;
    }
    
    .doc-content-body h3 {
        font-size: 20px;
    }
    
    .doc-header {
        padding: 24px 20px;
    }
    
    .doc-title-section h2 {
        font-size: 24px;
    }
    
    .command-grid {
        grid-template-columns: 1fr;
    }
    
    .doc-navigation {
        flex-direction: column;
    }
    
    .nav-btn {
        max-width: 100%;
    }
    
    .quick-help {
        bottom: 20px;
        right: 20px;
    }
    
    .help-panel {
        width: 280px;
    }
}

@media (max-width: 480px) {
    .support-hero h1 {
        font-size: 28px;
    }
    
    .doc-content-body {
        padding: 20px 16px;
    }
    
    .doc-header {
        padding: 20px 16px;
    }
    
    .doc-toc {
        padding: 20px 16px;
    }
    
    .spec-table, .data-format-table {
        font-size: 14px;
    }
    
    .spec-table th, .spec-table td,
    .data-format-table th, .data-format-table td {
        padding: 12px 8px;
    }
    
    .code-block pre {
        padding: 16px;
        font-size: 13px;
    }
    
    .help-panel {
        width: calc(100vw - 40px);
        right: -120px;
    }
}

/* ========================================
   技术支持中心主页面样式
======================================== */

/* 支持中心首页头部 */
.support-center-hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    text-align: center;
}

.support-center-hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.support-center-hero .hero-subtitle {
    font-size: 20px;
    margin-bottom: 50px;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.support-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--white);
}

.stat-label {
    font-size: 16px;
    opacity: 0.8;
}

/* 支持导航网格 */
.support-navigation {
    padding: 80px 0;
    background: var(--white);
}

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

.nav-card {
    display: block;
    padding: 40px 30px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    text-decoration: none;
    color: var(--text-dark);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.nav-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    border-color: var(--primary-blue);
}

.nav-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.nav-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.nav-card p {
    font-size: 16px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 20px;
}

.nav-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: #9ca3af;
}

.doc-count {
    font-weight: 500;
    color: var(--primary-blue);
}

/* 热门文档 */
.popular-docs {
    padding: 80px 0;
    background: #f8fafc;
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.doc-card {
    background: var(--white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.doc-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

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

.doc-type-badge {
    background: #e0f2fe;
    color: #0277bd;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
}

.doc-popularity {
    font-size: 12px;
    font-weight: 500;
}

.doc-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.doc-card p {
    font-size: 14px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 16px;
}

.doc-info {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 12px;
    color: #9ca3af;
}

.doc-info .version {
    background: var(--primary-blue);
    color: var(--white);
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
}

.doc-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.3s ease;
}

.doc-link:hover {
    color: var(--secondary-blue);
}

/* 快速搜索 */
.quick-search {
    padding: 80px 0;
    background: var(--white);
}

.search-section {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.search-section h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.search-section p {
    font-size: 18px;
    color: #64748b;
    margin-bottom: 40px;
}

.search-box {
    display: flex;
    max-width: 600px;
    margin: 0 auto 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border-radius: 50px;
    overflow: hidden;
}

.main-search-input {
    flex: 1;
    padding: 18px 24px;
    border: none;
    font-size: 16px;
    background: var(--white);
    color: var(--text-dark);
}

.main-search-input:focus {
    outline: none;
}

.main-search-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 18px 30px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.main-search-btn:hover {
    background: var(--secondary-blue);
}

.popular-searches {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.search-label {
    font-size: 14px;
    color: #64748b;
    margin-right: 8px;
}

.search-tag {
    padding: 6px 16px;
    background: #f1f5f9;
    color: #64748b;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.search-tag:hover {
    background: var(--primary-blue);
    color: var(--white);
}

/* 技术支持服务 */
.support-services {
    padding: 80px 0;
    background: #f8fafc;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
}

.service-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.service-card p {
    font-size: 16px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 24px;
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: 24px;
    text-align: left;
}

.service-card li {
    padding: 8px 0;
    font-size: 14px;
    color: #64748b;
    border-bottom: 1px solid #f1f5f9;
}

.service-card li:last-child {
    border-bottom: none;
}

.service-contact {
    margin-top: 24px;
}

.service-contact strong {
    color: var(--primary-blue);
    font-size: 18px;
    font-weight: 600;
}

/* 开发者资源 */
.developer-resources {
    padding: 80px 0;
    background: var(--white);
}

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

.resource-category h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-dark);
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 8px;
}

.resource-list {
    space-y: 16px;
}

.resource-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

.resource-item:hover {
    background: var(--white);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.resource-info h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.resource-info p {
    font-size: 14px;
    color: #64748b;
    line-height: 1.5;
}

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

.resource-actions .version {
    font-size: 12px;
    color: #64748b;
    background: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid #e2e8f0;
}

.download-btn, .view-btn {
    padding: 8px 16px;
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .support-center-hero {
        padding: 100px 0 60px;
    }
    
    .support-center-hero h1 {
        font-size: 36px;
    }
    
    .support-center-hero .hero-subtitle {
        font-size: 18px;
    }
    
    .support-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .nav-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .nav-card {
        padding: 30px 24px;
    }
    
    .docs-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .search-box {
        flex-direction: column;
        border-radius: 12px;
    }
    
    .main-search-input {
        border-bottom: 1px solid #e2e8f0;
    }
    
    .main-search-btn {
        justify-content: center;
        border-radius: 0 0 12px 12px;
    }
    
    .popular-searches {
        flex-direction: column;
        gap: 8px;
    }
    
    .search-label {
        margin-right: 0;
        margin-bottom: 8px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .support-center-hero h1 {
        font-size: 28px;
    }
    
    .support-center-hero .hero-subtitle {
        font-size: 16px;
    }
    
    .support-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .nav-card {
        padding: 24px 20px;
    }
    
    .nav-icon {
        font-size: 36px;
    }
    
    .service-icon {
        font-size: 36px;
    }
    
    .resource-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .resource-actions {
        width: 100%;
        justify-content: space-between;
    }
}

/* ========================================
   故障排查页面样式
======================================== */

/* 故障排查页面头部 */
.troubleshooting-hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: var(--white);
    text-align: center;
}

.troubleshooting-hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.troubleshooting-hero .hero-subtitle {
    font-size: 20px;
    margin-bottom: 50px;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255,255,255,0.1);
    padding: 24px;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.stat-icon {
    font-size: 36px;
    opacity: 0.9;
}

.stat-info {
    text-align: left;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--white);
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

/* 搜索功能区域 */
.search-section {
    padding: 80px 0;
    background: var(--white);
}

.search-wrapper {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.search-wrapper h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.search-wrapper p {
    font-size: 18px;
    color: #64748b;
    margin-bottom: 40px;
}

.search-box {
    margin-bottom: 32px;
}

.search-input-group {
    position: relative;
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border-radius: 50px;
    overflow: hidden;
}

.search-input {
    flex: 1;
    padding: 18px 24px;
    border: none;
    font-size: 16px;
    background: var(--white);
    color: var(--text-dark);
}

.search-input:focus {
    outline: none;
}

.search-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 18px 30px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.search-btn:hover {
    background: var(--secondary-blue);
}

.search-suggestions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.suggestions-label {
    font-size: 14px;
    color: #64748b;
    margin-right: 8px;
}

.suggestion-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.suggestion-tag {
    padding: 8px 16px;
    background: #f1f5f9;
    color: #64748b;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.suggestion-tag:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

/* 搜索结果展示 */
.search-results {
    padding: 40px 0;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.results-header h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
}

.results-count {
    font-size: 14px;
    color: #64748b;
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.result-item {
    background: var(--white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border: 1px solid #e2e8f0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.result-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: var(--primary-blue);
}

.result-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.result-icon {
    font-size: 24px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8fafc;
    border-radius: 12px;
}

.result-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.result-description {
    font-size: 14px;
    color: #64748b;
    line-height: 1.5;
    margin-bottom: 12px;
}

.result-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: #9ca3af;
}

/* 常见问题网格布局 */

.diagnosis-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.diagnosis-header {
    text-align: center;
    margin-bottom: 50px;
}

.diagnosis-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.diagnosis-header p {
    font-size: 18px;
    color: #64748b;
}

.diagnosis-flow {
    background: #f8fafc;
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    min-height: 400px;
}

.diagnosis-step {
    display: none;
}

.diagnosis-step.active {
    display: block;
}

.diagnosis-step h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 30px;
    text-align: center;
}

/* 产品选择网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.product-option {
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-option:hover {
    border-color: #3b82f6;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
    transform: translateY(-2px);
}

.product-option.selected {
    border-color: #3b82f6;
    background: #eff6ff;
}

.product-option .product-icon {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
}

.product-option h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.product-option p {
    font-size: 14px;
    color: #64748b;
    margin: 0;
}

/* 问题类型网格 */
.issue-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.issue-option {
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.issue-option:hover {
    border-color: #3b82f6;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
}

.issue-option.selected {
    border-color: #3b82f6;
    background: #eff6ff;
}

.issue-option h5 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.issue-option p {
    font-size: 14px;
    color: #64748b;
    margin: 0;
}

/* 症状检查列表 */
.symptom-checklist {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 12px;
}

.symptom-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.symptom-item:hover {
    border-color: #3b82f6;
    background: #f8fafc;
}

.symptom-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #3b82f6;
}

.symptom-item label {
    flex: 1;
    font-size: 14px;
    color: var(--text-dark);
    cursor: pointer;
}

/* 诊断结果 */
.diagnosis-result {
    background: var(--white);
    border-radius: 16px;
    padding: 30px;
    border: 1px solid #e2e8f0;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e2e8f0;
}

.result-icon {
    font-size: 48px;
}

.result-info h4 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.confidence-score {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #64748b;
}

.confidence-bar {
    width: 100px;
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    background: linear-gradient(90deg, #22c55e 0%, #3b82f6 100%);
    border-radius: 3px;
}

.result-solutions {
    margin-top: 24px;
}

.result-solutions h5 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.solution-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.solution-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 4px solid #3b82f6;
}

.solution-item .solution-icon {
    font-size: 20px;
    color: #3b82f6;
}

.solution-item .solution-text {
    flex: 1;
    font-size: 14px;
    color: var(--text-dark);
}

/* 诊断导航 */
.diagnosis-navigation {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.nav-btn {
    padding: 12px 32px;
    border: 2px solid #3b82f6;
    border-radius: 8px;
    background: transparent;
    color: #3b82f6;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-btn:hover:not(:disabled) {
    background: #3b82f6;
    color: var(--white);
}

.nav-btn:disabled {
    border-color: #d1d5db;
    color: #9ca3af;
    cursor: not-allowed;
}

.nav-btn.next-btn, .nav-btn.restart-btn {
    background: #3b82f6;
    color: var(--white);
}

.nav-btn.next-btn:hover, .nav-btn.restart-btn:hover {
    background: #2563eb;
}

/* 常见问题网格布局 */
.common-issues {
    padding: 80px 0;
    background: #f8fafc;
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: #64748b;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.issues-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.issue-card {
    background: var(--white);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    border: 1px solid #e2e8f0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.issue-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    border-color: var(--primary-blue);
}

.issue-icon {
    font-size: 36px;
    margin-bottom: 16px;
    display: block;
}

.issue-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    line-height: 1.4;
}

.issue-card p {
    font-size: 14px;
    color: #64748b;
    line-height: 1.5;
    margin-bottom: 16px;
}

.issue-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.frequency {
    padding: 4px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.frequency {
    padding: 4px 8px;
    border-radius: 12px;
    font-weight: 500;
    font-size: 12px;
}

/* 高频问题样式 */
.issue-card .frequency:nth-of-type(1) {
    background: #fef2f2;
    color: #dc2626;
}

/* 使用属性选择器来匹配不同频率 */
.frequency[data-level="high"], 
.issue-card:nth-child(-n+6) .frequency {
    background: #fef2f2;
    color: #dc2626;
}

.frequency[data-level="medium"],
.issue-card:nth-child(n+7):nth-child(-n+12) .frequency {
    background: #fefce8;
    color: #ca8a04;
}

.frequency[data-level="low"],
.issue-card:nth-child(n+13) .frequency {
    background: #f0fdf4;
    color: #16a34a;
}

.views {
    color: #9ca3af;
}

/* 文章详情模态框 */
.article-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: none;
}

.article-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--white);
    border-radius: 16px;
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid #e2e8f0;
    background: #f8fafc;
}

.modal-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}

.modal-close {
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    font-size: 24px;
    color: #64748b;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: #f1f5f9;
    color: var(--text-dark);
}

.modal-body {
    padding: 32px;
    overflow-y: auto;
    max-height: calc(80vh - 200px);
}

.modal-footer {
    padding: 20px 32px;
    border-top: 1px solid #e2e8f0;
    background: #f8fafc;
}

.article-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.article-actions .action-btn {
    padding: 10px 20px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: var(--white);
    color: var(--text-dark);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.article-actions .action-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.article-actions .action-btn.helpful {
    border-color: #16a34a;
    color: #16a34a;
}

.article-actions .action-btn.helpful:hover {
    background: #16a34a;
    color: var(--white);
}

/* 文章内容样式 */
.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 24px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e2e8f0;
}

.article-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 20px 0 12px;
}

.article-content p {
    font-size: 14px;
    line-height: 1.7;
    color: #374151;
    margin-bottom: 16px;
}

.article-content ul {
    margin: 16px 0;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 8px;
    line-height: 1.6;
    color: #374151;
}

.problem-causes {
    background: #fefce8;
    border: 1px solid #fde047;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.problem-causes h4 {
    color: #92400e;
    margin-top: 0;
}

.solution-steps {
    margin: 20px 0;
}

.step {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 4px solid var(--primary-blue);
}

.step-number {
    width: 32px;
    height: 32px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.step-content p {
    font-size: 13px;
    color: #64748b;
    margin: 0;
    line-height: 1.5;
}

.important-note {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    padding: 16px;
    margin: 20px 0;
}

.important-note .note-icon {
    display: inline-block;
    margin-right: 8px;
    font-size: 16px;
}

.important-note p {
    margin: 0;
    color: #1e40af;
    font-size: 14px;
}

.issues-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.issue-tab {
    padding: 12px 24px;
    background: var(--white);
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    color: #64748b;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.issue-tab:hover {
    border-color: #3b82f6;
    color: var(--text-dark);
}

.issue-tab.active {
    background: #3b82f6;
    border-color: #3b82f6;
    color: var(--white);
}

.issues-content {
    position: relative;
}

.issue-category {
    display: none;
}

.issue-category.active {
    display: block;
}

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

.issue-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border: 1px solid #e2e8f0;
}

.issue-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.issue-header:hover {
    background: #f8fafc;
}

.issue-info {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
}

.issue-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

.issue-severity {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.issue-severity.high {
    background: #fef2f2;
    color: #dc2626;
}

.issue-severity.medium {
    background: #fefce8;
    color: #ca8a04;
}

.issue-severity.low {
    background: #f0fdf4;
    color: #16a34a;
}

.issue-toggle {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
    border-radius: 50%;
    font-size: 18px;
    font-weight: 600;
    color: #3b82f6;
    transition: all 0.3s ease;
}

.issue-item.expanded .issue-toggle {
    transform: rotate(45deg);
    background: #3b82f6;
    color: var(--white);
}

.issue-content {
    display: none;
    padding: 0 24px 24px;
    border-top: 1px solid #f1f5f9;
}

.issue-item.expanded .issue-content {
    display: block;
}

.issue-details h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 20px 0 12px;
}

.issue-details p {
    font-size: 14px;
    line-height: 1.6;
    color: #64748b;
    margin-bottom: 16px;
}

.issue-details ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

.issue-details li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 14px;
    color: #64748b;
    line-height: 1.5;
}

.issue-details li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: #3b82f6;
    font-weight: bold;
}

/* 解决步骤 */
.solution-steps {
    margin: 20px 0;
}

.step {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 4px solid #3b82f6;
}

.step-number {
    width: 32px;
    height: 32px;
    background: #3b82f6;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.step-content p {
    font-size: 13px;
    color: #64748b;
    margin: 0;
    line-height: 1.5;
}

/* 问题操作 */
.issue-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.action-btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid;
}

.action-btn.primary {
    background: #3b82f6;
    border-color: #3b82f6;
    color: var(--white);
}

.action-btn.primary:hover {
    background: #2563eb;
    border-color: #2563eb;
}

.action-btn.secondary {
    background: transparent;
    border-color: #3b82f6;
    color: #3b82f6;
}

.action-btn.secondary:hover {
    background: #3b82f6;
    color: var(--white);
}

.action-btn.tertiary {
    background: transparent;
    border-color: #d1d5db;
    color: #64748b;
}

.action-btn.tertiary:hover {
    border-color: #9ca3af;
    color: var(--text-dark);
}

/* 占位符内容 */
.placeholder-content {
    text-align: center;
    padding: 60px 20px;
    background: var(--white);
    border-radius: 12px;
    border: 2px dashed #e2e8f0;
}

.placeholder-icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.6;
}

.placeholder-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.placeholder-content p {
    font-size: 16px;
    color: #64748b;
    margin-bottom: 24px;
}

.load-content-btn {
    padding: 12px 24px;
    background: #3b82f6;
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.load-content-btn:hover {
    background: #2563eb;
}

/* 故障报告提交 */
.fault-reporting {
    padding: 80px 0;
    background: var(--white);
}

.reporting-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.reporting-header {
    text-align: center;
    margin-bottom: 50px;
}

.reporting-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.reporting-header p {
    font-size: 18px;
    color: #64748b;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.reporting-form {
    background: #f8fafc;
    border-radius: 16px;
    padding: 40px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-dark);
    background: var(--white);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* 文件上传区域 */
.file-upload-area {
    border: 2px dashed #d1d5db;
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--white);
}

.file-upload-area:hover {
    border-color: #3b82f6;
    background: #f8fafc;
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.6;
}

.upload-text p {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.upload-text small {
    font-size: 12px;
    color: #64748b;
}

.file-list {
    margin-top: 16px;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--white);
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-dark);
}

.file-remove {
    color: #dc2626;
    cursor: pointer;
    font-weight: 600;
}

/* 表单操作 */
.form-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 32px;
}

.submit-btn, .reset-btn {
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn {
    background: #3b82f6;
    color: var(--white);
}

.submit-btn:hover {
    background: #2563eb;
}

.submit-btn:disabled {
    background: #9ca3af;
    cursor: not-allowed;
}

.reset-btn {
    background: transparent;
    color: #64748b;
    border: 1px solid #d1d5db;
}

.reset-btn:hover {
    border-color: #9ca3af;
    color: var(--text-dark);
}

/* 技术支持联系方式 */
.support-contact {
    padding: 80px 0;
    background: #f8fafc;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.contact-card {
    background: var(--white);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.contact-card.urgent {
    border-color: #ef4444;
    background: linear-gradient(135deg, #fef2f2 0%, var(--white) 100%);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.contact-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.contact-card p {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 20px;
    line-height: 1.5;
}

.contact-info {
    margin-bottom: 24px;
}

.contact-info strong {
    display: block;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-info span {
    font-size: 12px;
    color: #64748b;
}

.contact-btn {
    padding: 12px 24px;
    border: 1px solid #3b82f6;
    border-radius: 8px;
    background: transparent;
    color: #3b82f6;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    background: #3b82f6;
    color: var(--white);
}

.contact-btn.emergency {
    background: #ef4444;
    border-color: #ef4444;
    color: var(--white);
}

.contact-btn.emergency:hover {
    background: #dc2626;
    border-color: #dc2626;
}

/* 故障预防建议 */
.prevention-tips {
    padding: 80px 0;
    background: var(--white);
}

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

.tip-card {
    background: #f8fafc;
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.tip-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    border-color: #3b82f6;
}

.tip-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
    opacity: 0.8;
}

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

.tip-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.tip-card li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    font-size: 14px;
    color: #64748b;
    line-height: 1.5;
}

.tip-card li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: bold;
    font-size: 12px;
}

/* 搜索结果样式补充 */
.no-results {
    text-align: center;
    padding: 40px 20px;
    color: #64748b;
    font-size: 16px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .troubleshooting-hero {
        padding: 100px 0 60px;
    }
    
    .search-input-group {
        flex-direction: column;
        border-radius: 12px;
    }
    
    .search-input {
        border-radius: 12px 12px 0 0;
        border-bottom: 1px solid #e2e8f0;
    }
    
    .search-btn {
        border-radius: 0 0 12px 12px;
        justify-content: center;
    }
    
    .suggestion-tags {
        justify-content: flex-start;
    }
    
    .issues-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-header {
        padding: 20px 24px;
    }
    
    .modal-body {
        padding: 24px;
        max-height: calc(70vh - 180px);
    }
    
    .article-actions {
        flex-direction: column;
        gap: 8px;
    }
    
    .troubleshooting-hero h1 {
        font-size: 36px;
    }
    
    .troubleshooting-hero .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .stat-card {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .stat-info {
        text-align: center;
    }
    
    .diagnosis-flow {
        padding: 24px;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .product-option {
        padding: 20px 16px;
    }
    
    .product-option .product-icon {
        font-size: 36px;
    }
    
    .issue-grid {
        grid-template-columns: 1fr;
    }
    
    .symptom-checklist {
        grid-template-columns: 1fr;
    }
    
    .diagnosis-navigation {
        flex-direction: column;
    }
    
    .issues-tabs {
        gap: 6px;
    }
    
    .issue-tab {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .issue-header {
        padding: 16px 20px;
    }
    
    .issue-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .step {
        flex-direction: column;
        gap: 12px;
    }
    
    .step-number {
        align-self: flex-start;
    }
    
    .issue-actions {
        flex-direction: column;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .reporting-form {
        padding: 24px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-card {
        padding: 24px 20px;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .tip-card {
        padding: 24px 20px;
    }
}

@media (max-width: 480px) {
    .troubleshooting-hero h1 {
        font-size: 28px;
    }
    
    .troubleshooting-hero .hero-subtitle {
        font-size: 16px;
    }
    
    .diagnosis-header h2 {
        font-size: 28px;
    }
    
    .diagnosis-step h3 {
        font-size: 20px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .product-option .product-icon {
        font-size: 32px;
    }
    
    .placeholder-icon {
        font-size: 48px;
    }
    
    .reporting-header h2 {
        font-size: 28px;
    }
    
    .file-upload-area {
        padding: 24px 16px;
    }
    
    .upload-icon {
        font-size: 32px;
    }
    
    .contact-icon, .tip-icon {
        font-size: 36px;
    }
}

/* ===============================================
   蓝牙音箱控制APP页面新增样式
   =============================================== */

/* Hero区 - 产品展示布局 */
.product-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 0;
}

.product-image {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

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

.product-info h1 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
    line-height: 1.2;
}

.product-subtitle {
    font-size: 18px;
    color: var(--dark-gray);
    margin: 0;
    line-height: 1.6;
}

.product-description {
    color: var(--dark-gray);
    line-height: 1.8;
    margin: 0;
    font-size: 16px;
}

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

/* Hero区 - App界面展示 */
.app-interface-showcase {
    width: 100%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 0;
}

.interface-demo {
    display: flex;
    align-items: center;
    gap: 30px;
}

.phone-mockup {
    width: 230px;
    height: 450px;
    background: #000;
    border-radius: 25px;
    padding: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.app-screen {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 15px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    justify-content: space-between;
}

.status-bar {
    font-size: 12px;
    color: #666;
    text-align: center;
    margin-bottom: 10px;
}

/* 手机模拟器内的app-header */
.phone-mockup .app-header {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 12px;
    padding: 8px 12px;
    border-radius: 8px;
    background: #f8f9fa;
}

.phone-mockup .app-header h4 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
}

.device-card {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 15px;
    flex: 1;
    min-height: 0;
}

.device-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.device-name {
    font-weight: 600;
    color: #333;
    font-size: 13px;
    line-height: 1.2;
}

.connection-status {
    font-size: 11px;
    color: #28a745;
    font-weight: 500;
}

.battery-level {
    font-size: 11px;
    color: #666;
    font-weight: 500;
    text-align: right;
}

.equalizer-section h4 {
    font-size: 14px;
    margin-bottom: 10px;
    color: #333;
}

.eq-preset {
    display: flex;
    gap: 5px;
}

.preset-btn {
    padding: 8px 12px;
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 15px;
    font-size: 12px;
    cursor: pointer;
}

.preset-btn.active {
    background: var(--primary-blue);
    color: #fff;
    border-color: var(--primary-blue);
}

.arrow-indicator {
    font-size: 24px;
    color: var(--primary-blue);
    font-weight: bold;
}

/* 产品标签 */
.product-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-blue), #2196F3);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 15px;
}

/* 功能布局 - 全新设计 */
.features-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.core-functions,
.hardware-compatibility {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.06);
    border: 1px solid #f0f4f8;
}

.core-functions h3,
.hardware-compatibility h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin: 0 0 30px 0;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f4f8;
}

.core-functions h3::before {
    content: "🎯";
    font-size: 24px;
}

.hardware-compatibility h3::before {
    content: "⚡";
    font-size: 24px;
}

.function-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.function-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.function-item:hover {
    background: #f1f5f9;
    border-color: var(--primary-blue);
    transform: translateX(6px);
    box-shadow: 0 4px 16px rgba(74, 144, 226, 0.15);
}

.function-icon {
    font-size: 20px;
    min-width: 20px;
    margin-top: 2px;
    opacity: 0.8;
}

.function-details h4 {
    font-size: 16px;
    color: var(--text-dark);
    margin: 0 0 6px 0;
    font-weight: 600;
    line-height: 1.3;
}

.function-details p {
    margin: 0;
    color: #64748b;
    line-height: 1.5;
    font-size: 14px;
}

/* 兼容性内容 - 重新设计 */
.compatibility-content {
    margin-top: 0;
}

.compatibility-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 0;
}

.compat-card {
    background: #f8fafc;
    padding: 24px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.compat-card:hover {
    background: #f1f5f9;
    border-color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(74, 144, 226, 0.1);
}

.compat-card h4 {
    margin: 0 0 15px 0;
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.compat-card h4::before {
    font-size: 18px;
}

.compat-card:nth-child(1) h4::before {
    content: "💾";
}

.compat-card:nth-child(2) h4::before {
    content: "📊";
}



/* 车辆品牌矩阵 */
.vehicle-matrix {
    font-size: 14px;
    font-weight: 500;
}



/* 定制能力区 */
.customization-capabilities {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.customization-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
    margin-top: 50px;
    max-width: 100%;
    overflow: hidden;
}

/* 大屏幕优化 */
@media (min-width: 1400px) {
    .customization-grid {
        gap: 40px;
    }
    
    .customization-card {
        padding: 40px;
    }
}

/* 中等屏幕响应式 */
@media (max-width: 1200px) and (min-width: 769px) {
    .customization-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

/* 平板响应式 */
@media (max-width: 1024px) and (min-width: 769px) {
    .customization-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .customization-card {
        grid-template-rows: 180px 65px 140px 85px 150px;
    }
    
    .stability-stats {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .stability-stats .stat-item {
        padding: 14px;
    }
}

.customization-card {
    background: white;
    padding: 35px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    border: 1px solid #f0f0f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: grid;
    grid-template-rows: 200px 70px 90px 90px 160px;
    min-width: 0;
    overflow: hidden;
}

.customization-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.before-after {
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 0;
    margin: 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    height: 100%;
}

.before,
.after {
    flex: 1;
    text-align: center;
    min-width: 0;
    overflow: hidden;
}

.before h4,
.after h4 {
    font-size: 14px;
    color: var(--dark-gray);
    margin-bottom: 12px;
    font-weight: 600;
}

.mockup-small {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 20px;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.mockup-small:hover {
    border-color: var(--primary-blue);
    transform: scale(1.02);
}

/* 图标显示样式 */
.icon-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 15px;
    height: 100%;
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 8px;
    line-height: 1;
}

.feature-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    text-align: center;
    line-height: 1.2;
}

/* 增强样式 */
.mockup-small.enhanced .icon-display {
    background: linear-gradient(135deg, var(--primary-blue), #3f51b5);
    border-radius: 8px;
    margin: -10px;
    padding: 25px 15px;
}

.mockup-small.enhanced .feature-text {
    color: white;
}

.mockup-small.branded .icon-display {
    background: linear-gradient(135deg, var(--primary-blue), #2196F3);
    border-radius: 8px;
    margin: -10px;
    padding: 25px 15px;
}

.mockup-small.branded .feature-text {
    color: white;
}

.mockup-small.multilang .icon-display {
    background: linear-gradient(135deg, #28a745, #4caf50);
    border-radius: 8px;
    margin: -10px;
    padding: 25px 15px;
}

.mockup-small.multilang .feature-text {
    color: white;
}

.arrow {
    font-size: 22px;
    color: var(--primary-blue);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    transition: transform 0.3s ease;
}

.before-after:hover .arrow {
    transform: translateX(5px);
}

.customization-card h3 {
    font-size: 22px;
    color: var(--text-dark);
    margin: 0;
    font-weight: 700;
    line-height: 1.3;
    display: flex;
    align-items: center;
    height: 100%;
}

.customization-card > p {
    color: var(--dark-gray);
    line-height: 1.6;
    margin: 0;
    font-size: 15px;
    display: flex;
    align-items: flex-start;
    height: 100%;
    overflow: hidden;
}

.customization-timing {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.timing-badge {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    color: var(--primary-blue);
    padding: 12px 20px;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 600;
    display: block;
    border: 1px solid #e3f2fd;
    text-align: center;
    line-height: 1.4;
    width: 100%;
    word-wrap: break-word;
}

.case-study {
    background: linear-gradient(135deg, #f0f8f0, #e8f5e8);
    padding: 18px;
    border-radius: 12px;
    border-left: 4px solid #28a745;
    font-size: 14px;
    line-height: 1.5;
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.1);
    margin: 0;
    height: 100%;
    display: flex;
    align-items: center;
    overflow: hidden;
}

/* 行车记录仪特定样式 */
.recording-controls, .fleet-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
}

.record-btn.active {
    color: #ff4444;
    font-weight: bold;
}

.connection-status.online {
    color: #28a745;
    font-weight: 600;
}

.fleet-stats, .alert-count {
    font-size: 13px;
    padding: 4px 8px;
    border-radius: 12px;
    background: #f8f9fa;
}

.alert-count {
    background: #fff3cd;
    color: #856404;
}

/* 功能区域基础样式 */
.feature-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 15px;
    padding: 0 10px;
}

.feature-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 10px;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    color: #495057;
    text-align: center;
    min-height: 28px;
    line-height: 1.2;
}

/* 商用版特殊样式 */
.feature-section.commercial .feature-item {
    background: linear-gradient(135deg, #4a90e2, #357abd);
    color: white;
    border: 1px solid #357abd;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(74, 144, 226, 0.2);
}

.phone-mockup.commercial .app-header {
    background: linear-gradient(135deg, #4a90e2, #357abd);
    color: white;
}

.phone-mockup.commercial .app-header h4 {
    color: white;
    margin: 0;
}

/* 车队相关组件 */
.fleet-showcase {
    text-align: center;
    padding: 20px;
}

.vehicle-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 15px;
}

.vehicle-dot {
    font-size: 24px;
    padding: 10px;
    border-radius: 50%;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.vehicle-dot.active {
    background: #d4edda;
    border: 2px solid #28a745;
}

.vehicle-dot.warning {
    background: #fff3cd;
    border: 2px solid #ffc107;
}

.fleet-stats {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: #666;
}

.global-showcase {
    text-align: center;
    padding: 20px;
}

.region-flags {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.flag {
    padding: 10px 16px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 25px;
    font-size: 15px;
    font-weight: 700;
    color: #495057;
    border: 2px solid #dee2e6;
    transition: all 0.3s ease;
    min-width: 70px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.flag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-color: #6c757d;
}

.compliance-badges {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.badge {
    padding: 8px 16px;
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    border: 2px solid #b8dacc;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(40, 167, 69, 0.2);
}

.badge:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(40, 167, 69, 0.3);
    border-color: #28a745;
}

.flag.apps-indicator {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #1565c0;
    border-color: #90caf9;
}

.flag.apps-indicator:hover {
    border-color: #1976d2;
}

/* 车辆品牌矩阵 */
.vehicle-matrix {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, #f8f9ff, #e8f4f8);
    border-radius: 16px;
}

.matrix-row {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
}

.vehicle-brand {
    padding: 10px 16px;
    background: white;
    border-radius: 8px;
    font-weight: 600;
    color: #333;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.adaptation-badge {
    background: linear-gradient(135deg, #4a90e2, #357abd);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    display: inline-block;
    margin-top: 10px;
}

/* 兼容性标签样式 */
.chip-list, .brand-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.chip-list span, .brand-list span {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #1e40af;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid #93c5fd;
    transition: all 0.2s ease;
}

.chip-list span:hover, .brand-list span:hover {
    background: linear-gradient(135deg, #bfdbfe, #93c5fd);
    transform: translateY(-1px);
}

.stability-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 15px;
}

.stability-stats .stat-item {
    text-align: center;
    background: white;
    padding: 16px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: all 0.2s ease;
}

.stability-stats .stat-item:hover {
    border-color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(74, 144, 226, 0.1);
}

.stability-stats .stat-number {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: #059669;
    margin-bottom: 4px;
}

.stability-stats .stat-label {
    font-size: 12px;
    color: #64748b;
    font-weight: 500;
}

/* 合作案例区 */
.cooperation-cases {
    padding: 80px 0;
    background: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.case-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.case-card.featured {
    background: linear-gradient(135deg, #f8f9fa, #e3f2fd);
    border: 2px solid var(--primary-blue);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.case-type {
    background: var(--primary-blue);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.case-duration {
    background: var(--accent-orange);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

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

.case-requirements,
.case-results {
    margin-bottom: 20px;
}

.case-requirements h4,
.case-results h4 {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-weight: 600;
}

.case-requirements ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.case-requirements li {
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
    color: var(--dark-gray);
}

.case-requirements li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

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

.case-visual {
    margin-top: 20px;
    text-align: center;
}

.product-showcase,
.market-showcase {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    background: white;
    padding: 20px;
    border-radius: 8px;
}

.product-image {
    font-size: 40px;
}

.interface-preview {
    background: var(--primary-blue);
    color: white;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.speaker-layout {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 10px;
}

.speaker-dot {
    width: 10px;
    height: 10px;
    background: #ddd;
    border-radius: 50%;
}

.speaker-dot.active {
    background: var(--accent-orange);
}

.market-flags {
    font-size: 24px;
}

.app-interface.multilang {
    background: #28a745;
    color: white;
    padding: 15px;
    border-radius: 8px;
}

.audio-modes {
    font-size: 12px;
    margin-top: 5px;
}

/* 合作流程区 */
.cooperation-process {
    padding: 80px 0;
    background: #f8f9fa;
}

.process-content {
    margin-top: 50px;
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.process-step {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    position: relative;
}

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

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

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

.service-guarantees h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 30px;
    font-weight: 600;
    text-align: center;
}

.guarantee-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.guarantee-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.guarantee-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.guarantee-card h4 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

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

/* CTA区 */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-blue), #2196F3);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-visual {
    text-align: center;
}

.speaker-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.speaker-item {
    background: rgba(255,255,255,0.2);
    padding: 15px;
    border-radius: 8px;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.adaptation-badge {
    background: var(--accent-orange);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
}

.cta-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
    text-align: center;
}

.cta-text p {
    font-size: 18px;
    margin-bottom: 0;
    line-height: 1.6;
    opacity: 0.9;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

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

.btn-primary.large,
.btn-secondary.large {
    padding: 15px 30px;
    font-size: 16px;
    font-weight: 600;
}

.btn-secondary.large {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid white;
    backdrop-filter: blur(10px);
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .product-hero {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .product-info h1 {
        font-size: 32px;
    }
    
    .product-actions {
        justify-content: center;
    }
    
    .features-layout {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-top: 40px;
    }
    
    .core-functions,
    .hardware-compatibility {
        padding: 30px;
    }
    
    .stability-stats {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .stability-stats .stat-item {
        padding: 12px;
    }
    
    .interface-demo {
        flex-direction: column;
        gap: 20px;
    }
    
    .phone-mockup {
        width: 180px;
        height: 350px;
    }
    
    .phone-mockup .app-header {
        font-size: 12px;
        margin-bottom: 10px;
        padding: 6px 10px;
    }
    
    .feature-item {
        font-size: 10px;
        padding: 5px 8px;
        min-height: 24px;
    }
    
    .customization-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .customization-card {
        height: 580px;
        grid-template-rows: 160px 60px 130px 80px 140px;
        padding: 25px;
    }
    
    .customization-card h3 {
        font-size: 20px;
    }
    
    .customization-card > p {
        font-size: 14px;
    }
    
    .timing-badge {
        font-size: 12px;
        padding: 10px 16px;
    }
    
    .case-study {
        font-size: 13px;
        padding: 15px;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .before-after {
        flex-direction: column;
        gap: 15px;
    }
    
    .cta-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .cta-text h2 {
        font-size: 28px;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .process-timeline {
        grid-template-columns: 1fr;
    }
}