/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #1e40af;
}

.logo-img {
    height: 40px;
    margin-right: 10px;
}

.logo-placeholder {
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #3b82f6, #10b981);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
    margin-right: 10px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #3b82f6;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #10b981);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: #3b82f6;
    font-weight: 600;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 首页banner */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #10b981 100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    padding: 0 20px;
}

.hero-title {
    margin-bottom: 3rem;
}

.title-main {
    display: block;
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #fff, #e0f2fe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-sub {
    display: block;
    font-size: 1.2rem;
    opacity: 0.9;
    letter-spacing: 2px;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #fff;
}

.feature-item p {
    opacity: 0.9;
}

/* Hero介绍区域 */
.hero-intro {
    margin: 2rem 0 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero-description {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 2rem;
    line-height: 1.8;
    text-align: center;
}

.hero-highlights {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.highlight-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: all 0.3s ease;
    text-align: left;
}

.highlight-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.highlight-label {
    color: #93c5fd;
    font-weight: 600;
    font-size: 1rem;
    white-space: nowrap;
    min-width: 80px;
}

.highlight-text {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    font-size: 0.95rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(45deg, #3b82f6, #10b981);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: #3b82f6;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 15px solid white;
    opacity: 0.7;
}

/* 通用section样式 */
section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #3b82f6, #10b981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* 公司概况 */
.company-intro {
    background: white;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-10px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    background: linear-gradient(45deg, #3b82f6, #10b981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #666;
    font-size: 1rem;
}

/* 技术优势 - 新的卡片式设计 */
.technology {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

/* 主要技术卡片网格 */
.tech-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.tech-main-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #10b981;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tech-main-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.tech-card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.tech-icon-circle {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.tech-icon-wifi::before {
    content: "📡";
    font-size: 2rem;
}

.tech-icon-ai::before {
    content: "🤖";
    font-size: 2rem;
}

.tech-icon-design::before {
    content: "🎨";
    font-size: 2rem;
}

.tech-card-header h3 {
    color: #1e293b;
    font-size: 1.4rem;
    font-weight: 600;
    margin: 0;
}

.tech-card-content p {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.tech-features-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.feature-tag {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    color: #1d4ed8;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid #bfdbfe;
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    transform: translateY(-2px);
}

/* 应用领域卡片 */
.tech-applications {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.app-card {
    border-radius: 15px;
    padding: 2rem;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
    pointer-events: none;
}

.app-card-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    position: relative;
    z-index: 2;
}

.app-card-content p {
    font-size: 0.9rem;
    opacity: 0.9;
    line-height: 1.5;
    position: relative;
    z-index: 2;
    margin: 0;
}

.precise-care {
    background: linear-gradient(135deg, #475569, #64748b);
}

.smart-app {
    background: linear-gradient(135deg, #0891b2, #0e7490);
}

.multi-tech {
    background: linear-gradient(135deg, #7c3aed, #5b21b6);
}

/* 旧的tech-grid样式保留作为备用 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tech-card {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.1);
}

.tech-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    background: linear-gradient(45deg, #3b82f6, #10b981);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-wifi::before {
    content: "📡";
    font-size: 2rem;
}

.icon-ai::before {
    content: "🤖";
    font-size: 2rem;
}

.icon-design::before {
    content: "🎨";
    font-size: 2rem;
}

.tech-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1e40af;
}

.tech-card p {
    color: #666;
    margin-bottom: 1.5rem;
}

.tech-features {
    list-style: none;
}

.tech-features li {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    padding: 0.5rem 1rem;
    margin: 0.5rem 0;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* 产品中心 */
.products {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 80px 0;
}

/* 产品新样式 - 分类切换 */
.product-content {
    margin-top: 3rem;
}

.product-category-panel {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.product-category-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 产品分类标签 */
.product-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.tab-button {
    background: white;
    color: #64748b;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid #e2e8f0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.tab-button:hover {
    background: #f1f5f9;
    color: #3b82f6;
    border-color: #3b82f6;
    transform: translateY(-2px);
}

.tab-button.active {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    color: white;
    border-color: #3b82f6;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.product-category {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.product-category:hover {
    transform: translateY(-5px);
}

.category-header {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.category-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #3b82f6, #10b981);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin-right: 1rem;
}

.category-header h3 {
    color: #1e40af;
    font-size: 1.4rem;
}

.product-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    border-left: 4px solid #3b82f6;
}

.product-item h4 {
    color: #1e40af;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.product-item p {
    color: #666;
    font-size: 0.9rem;
}

/* 产品展示面板 */
.product-category-panel {
    display: none;
    animation: fadeIn 0.5s ease;
}

.product-category-panel.active {
    display: block;
}

/* 产品展示卡片 */
.products-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.product-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #10b981;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.1), transparent);
    transition: left 0.6s ease;
}

.product-card:hover::before {
    left: 100%;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    border-top-color: #059669;
}

.product-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.product-card h4 {
    color: #1e40af;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.product-card p {
    color: #64748b;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}



/* 全部产品视图 */
.all-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.category-section {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border-left: 5px solid #10b981;
}

.category-title {
    color: #1e40af;
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mini-products {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.mini-product {
    background: #f8fafc;
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    color: #475569;
    font-size: 0.95rem;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.mini-product:hover {
    background: #e0f2fe;
    border-color: #0891b2;
    color: #0891b2;
    transform: translateX(5px);
}

/* 解决方案 - 重新设计 */
.solutions {
    background: white;
    padding: 80px 0;
}

.subsection-title {
    font-size: 1.8rem;
    color: #1e40af;
    margin: 3rem 0 2rem;
    text-align: center;
    font-weight: 600;
}

/* 系统架构图 */
.architecture-section {
    margin-bottom: 4rem;
}

.architecture-diagram {
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    border-radius: 20px;
    padding: 2rem;
    margin: 2rem 0;
}

.arch-header {
    text-align: center;
    margin-bottom: 2rem;
}

.platform-banner {
    background: linear-gradient(135deg, #475569, #64748b);
    color: white;
    padding: 1rem 3rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    display: inline-block;
}

.arch-layers {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.arch-layer {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 2rem;
    align-items: center;
}

.layer-label {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    color: white;
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.layer-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.app-module, .engine, .network-item {
    background: #f8fafc;
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    font-size: 0.9rem;
    text-align: center;
}

.layer-content > div:first-child {
    gap: 1rem;
    flex-wrap: wrap;
}

/* 应用层特殊布局 */
.app-modules-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    width: 100%;
}

.app-modules-row .app-module {
    background: #f8fafc;
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    font-size: 0.9rem;
    text-align: center;
    flex: 1;
}

.platform-header {
    background: linear-gradient(135deg, #0891b2, #0e7490);
    color: white;
    padding: 0.8rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    margin-bottom: 1rem;
}

.platform-engines {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.8rem;
}

.network-header {
    background: linear-gradient(135deg, #1e40af, #3730a3);
    color: white;
    padding: 0.8rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    margin-bottom: 1rem;
}

.network-technologies {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 0.8rem;
}

.network-item {
    text-align: center;
    padding: 0.8rem 0.5rem;
}

.network-icon {
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 0.3rem;
}

.network-desc {
    font-size: 0.75rem;
    color: #64748b;
}

.sensors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.8rem;
}

.sensor-item {
    background: #f8fafc;
    padding: 0.6rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    font-size: 0.8rem;
    text-align: center;
}

/* 平台特点 */
.platform-features {
    margin-bottom: 4rem;
}

.platform-banner-desc {
    background: linear-gradient(135deg, #475569, #0891b2);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-align: center;
    margin: 2rem auto;
    max-width: 600px;
    font-size: 1.1rem;
    font-weight: 600;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin: 2rem 0;
}

.feature-item-large {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 20px;
    padding: 2rem;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 2rem;
    align-items: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.feature-item-large:hover {
    transform: translateY(-5px);
}

.feature-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #0891b2, #0e7490);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.feature-content h4 {
    color: #1e293b;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.feature-content p {
    color: #64748b;
    margin: 0;
    line-height: 1.6;
}

.feature-image {
    font-size: 3rem;
    opacity: 0.7;
}

/* 功能体系 - 重新设计为卡片式 */
.function-system {
    margin-bottom: 2rem;
}

.function-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.function-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #10b981;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.function-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.function-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.function-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.function-header h4 {
    color: #1e293b;
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.function-content {
    text-align: center;
}

.function-description {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.function-tag {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    padding: 0.6rem 1.5rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-block;
    transition: all 0.3s ease;
}

.function-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(16, 185, 129, 0.3);
}

/* 无感健康监测 - 超简化版样式 */
.health-monitoring-ultra-simple {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin: 3rem 0;
    align-items: start;
}

.health-devices-simple {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.devices-grid-simple {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.device-simple {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.device-simple::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.1), transparent);
    transition: left 0.6s ease;
}

.device-simple:hover::before {
    left: 100%;
}

.device-simple:hover {
    background: linear-gradient(135deg, #e0f2fe, #bfdbfe);
    border-color: #3b82f6;
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.2);
}

.device-icon-large {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    position: relative;
    z-index: 2;
}

.device-simple h4 {
    font-size: 1.2rem;
    color: #1e293b;
    font-weight: 600;
    margin-bottom: 0.8rem;
    position: relative;
    z-index: 2;
}

.device-simple p {
    font-size: 0.9rem;
    color: #64748b;
    font-weight: 500;
    position: relative;
    z-index: 2;
}

.health-app {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phone-display {
    background: #1f2937;
    border-radius: 25px;
    padding: 1rem;
    width: 280px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.phone-screen {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    min-height: 300px;
}

.app-header {
    text-align: center;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.health-chart {
    text-align: center;
}

.chart-placeholder {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.chart-data {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.data-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8fafc;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.data-label {
    color: #64748b;
    font-size: 0.9rem;
}

.data-value {
    color: #1e293b;
    font-weight: 600;
    font-size: 1rem;
}

.health-system-simple {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.system-visual {
    text-align: center;
}

.system-title-simple {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
}

.room-visual {
    margin: 2rem 0;
}

.room-bg {
    position: relative;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    border-radius: 20px;
    height: 320px;
    border: 2px solid #e2e8f0;
    overflow: hidden;
}

.room-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.device-point {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    animation: pulse 2s infinite;
}

.point-dot {
    background: white;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    border: 3px solid #3b82f6;
    transition: all 0.3s ease;
}

.device-point:hover .point-dot {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.device-point span {
    font-size: 0.85rem;
    color: #1e293b;
    font-weight: 600;
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
    white-space: nowrap;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.health-highlights-simple {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 4rem 0 2rem;
}

.highlight-simple {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.highlight-simple::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
    pointer-events: none;
}

.highlight-simple:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.3);
}

.highlight-icon-simple {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.highlight-text-simple {
    position: relative;
    z-index: 2;
}

.highlight-text-simple h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: white;
    font-weight: 600;
}

.highlight-text-simple p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.7;
    margin: 0;
}

.health-three-columns {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.column-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.5rem;
    text-align: center;
}

.column-subtitle {
    font-size: 0.9rem;
    color: #64748b;
    text-align: center;
    margin-bottom: 2rem;
}

/* 设备展示列 */
.devices-column {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.device-showcase {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.device-card {
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border-radius: 15px;
    padding: 1.5rem;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.device-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: #3b82f6;
}

.device-image {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.device-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.8rem;
    text-align: center;
}

.device-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.device-features li {
    font-size: 0.85rem;
    color: #64748b;
    margin-bottom: 0.4rem;
    padding-left: 0;
}

/* 手机应用列 */
.mobile-column {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    border-radius: 20px;
    padding: 2rem;
    color: white;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.2);
}

.mobile-column .column-title,
.mobile-column .column-subtitle {
    color: white;
}

.mobile-column .column-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.phone-mockup {
    background: #1f2937;
    border-radius: 25px;
    padding: 1rem;
    margin: 0 auto;
    width: 280px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.phone-header {
    background: #374151;
    border-radius: 15px 15px 0 0;
    padding: 1rem;
    text-align: center;
}

.status-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    margin-bottom: 0.5rem;
}

.app-title {
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
}

.phone-content {
    background: white;
    border-radius: 0 0 15px 15px;
    padding: 1.5rem;
    color: #1f2937;
}

.health-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: #1e293b;
}

.stat-unit {
    font-size: 0.7rem;
    color: #64748b;
    margin-left: 0.2rem;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: #64748b;
    margin-top: 0.3rem;
}

.app-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: #64748b;
    padding: 0.5rem;
    background: #f8fafc;
    border-radius: 8px;
}

.feature-icon {
    font-size: 1rem;
}

/* 分析流程列 */
.analysis-column {
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 20px;
    padding: 2rem;
    color: white;
}

.analysis-column .column-title,
.analysis-column .column-subtitle {
    color: white;
}

.analysis-column .column-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.analysis-flow {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.analysis-flow .flow-step {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: all 0.3s ease;
}

.analysis-flow .flow-step:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
}

.step-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    color: white;
}

.step-content p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 0.5rem 0;
}

.step-detail {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

.flow-arrow {
    text-align: center;
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.6);
    margin: 0.5rem 0;
}

.ai-highlights {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.highlight-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.highlight-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.highlight-text strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.highlight-text span {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.8);
}

/* 医护对讲系统 - 简化版样式 */
.communication-simple {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 3rem;
    margin: 3rem 0;
}

.comm-devices {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.main-device {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.main-device .device-image {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.main-device h4 {
    color: #1e293b;
    font-size: 1.2rem;
    font-weight: 600;
}

.sub-devices {
    display: flex;
    gap: 1rem;
}

.sub-device {
    flex: 1;
    background: #f8fafc;
    border-radius: 10px;
    padding: 1rem;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.sub-device:hover {
    background: #e0f2fe;
    border-color: #0891b2;
    transform: translateY(-3px);
}

.sub-device .device-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.sub-device span {
    font-size: 0.8rem;
    color: #475569;
    font-weight: 500;
}

.comm-functions {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    border-radius: 20px;
    padding: 2rem;
}

.function-title {
    font-size: 1.3rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 2rem;
}

.function-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.function-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
}

.function-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.function-item span {
    font-size: 0.9rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
}

.comm-details {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.detail-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e293b;
    text-align: center;
    margin-bottom: 2rem;
}

.detail-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.detail-item {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1.5rem;
    border-left: 4px solid #3b82f6;
}

.detail-item strong {
    color: #1e293b;
    font-size: 1rem;
    font-weight: 600;
    display: block;
    margin-bottom: 0.8rem;
}

.detail-item p {
    color: #64748b;
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

.comm-advantages {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.advantage-item {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-top: 4px solid #10b981;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.advantage-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.advantage-text strong {
    display: block;
    color: #1e293b;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.advantage-text span {
    color: #64748b;
    font-size: 0.9rem;
}

.communication-architecture,
.communication-features,
.communication-devices {
    margin-bottom: 3rem;
}

.section-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1e293b;
    text-align: center;
    margin-bottom: 2rem;
}

/* 角色图表 */
.roles-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    margin: 2rem 0;
    position: relative;
}

.role-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    min-width: 200px;
}

.role-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.role-card.elderly {
    border-top: 4px solid #f59e0b;
}

.role-card.nurse {
    border-top: 4px solid #3b82f6;
}

.role-card.manager {
    border-top: 4px solid #10b981;
}

.role-avatar {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.role-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.role-features {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.role-features .feature-item {
    background: #f8fafc;
    color: #64748b;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    font-size: 0.9rem;
    border: 1px solid #e2e8f0;
}

.connection-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #10b981);
    top: 50%;
    transform: translateY(-50%);
}

.line-1 {
    left: 25%;
    width: 20%;
}

.line-2 {
    right: 25%;
    width: 20%;
}

/* 功能特性表格 */
.features-table {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.table-header {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    background: linear-gradient(135deg, #1e40af, #3730a3);
    color: white;
}

.header-cell {
    padding: 1.5rem;
    font-weight: 600;
    font-size: 1rem;
}

.table-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    border-bottom: 1px solid #f1f5f9;
}

.table-row:last-child {
    border-bottom: none;
}

.table-row:nth-child(even) {
    background: #f8fafc;
}

.feature-cell {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
    color: #1e293b;
}

.feature-icon {
    font-size: 1.5rem;
}

.function-cell {
    padding: 1.5rem;
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.5;
    display: flex;
    align-items: center;
}

/* 设备展示 */
.devices-showcase {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

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

.device-card.main-device {
    grid-row: span 2;
}

.device-specs {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0 0;
}

.device-specs li {
    font-size: 0.85rem;
    color: #64748b;
    margin-bottom: 0.5rem;
    padding-left: 0;
}

.system-benefits {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 15px;
    padding: 2rem;
    margin-top: 2rem;
}

.system-benefits h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e293b;
    text-align: center;
    margin-bottom: 1.5rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

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

.benefit-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.benefit-text strong {
    display: block;
    font-size: 1rem;
    color: #1e293b;
    margin-bottom: 0.3rem;
}

.benefit-text span {
    font-size: 0.85rem;
    color: #64748b;
}

/* 应用场景 */
.scenarios {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 80px 0;
}

/* 应用场景展开显示 - 与解决方案统一样式 */
.scenarios-expanded {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-top: 3rem;
}

.scenario-section {
    margin-bottom: 2rem;
}

.scenario-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #3b82f6;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.scenario-header {
    background: linear-gradient(135deg, #4f46e5, #3b82f6);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.scenario-badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.4rem;
    flex-shrink: 0;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.scenario-title-section {
    flex: 1;
}

.scenario-title-section h4 {
    color: white;
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
}

.scenario-description {
    margin: 1rem 0 0 0;
}

.desc-line {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0.8rem 0;
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    border-left: 3px solid rgba(255, 255, 255, 0.3);
}

.desc-item {
    display: none;
}





@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scenario-header {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #1e40af, #3730a3);
    color: white;
    padding: 2rem;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

.scenario-header::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent);
    border-radius: 50%;
    transform: translate(30px, -30px);
}

.scenario-badge {
    background: rgba(255, 255, 255, 0.2);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    flex-shrink: 0;
}

.scenario-title-section h2 {
    font-size: 2rem;
    margin: 0 0 1rem 0;
    font-weight: 700;
}

.scenario-description {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.desc-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 一键紧急救援流程 */
.emergency-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 2rem;
    margin: 2rem 0;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 15px;
}

.flow-step {
    text-align: center;
    max-width: 180px;
    padding: 1.2rem;
    background: white;
    border-radius: 12px;
    border: 2px solid #e2e8f0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

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

.step-number {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 0.8rem;
    font-size: 1rem;
}

.step-image {
    font-size: 2rem;
    margin-bottom: 0.8rem;
}

.step-content h4 {
    color: #1e293b;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    margin: 0;
}

.flow-arrow {
    font-size: 1.5rem;
    color: #3b82f6;
    font-weight: 700;
    flex-shrink: 0;
}

/* 智能安全看护 */
.safety-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.sub-title {
    font-size: 1.5rem;
    color: #1e40af;
    font-weight: 600;
    text-align: center;
    margin-bottom: 2rem;
}

/* 智能音箱功能圈 */
.smart-hub-section {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.smart-hub {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto;
}

.hub-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.hub-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.hub-function {
    position: absolute;
    top: 50%;
    left: 50%;
    transform-origin: 0 0;
    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(-150px) rotate(calc(-1 * var(--angle)));
}

.function-circle {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.2;
    box-shadow: 0 5px 15px rgba(251, 191, 36, 0.3);
    transition: all 0.3s ease;
}

.function-circle:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(251, 191, 36, 0.4);
}

/* 传感器监测 */
.sensors-section {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.sensors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.sensor-card {
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.sensor-card:hover {
    transform: translateY(-5px);
    border-color: #3b82f6;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.sensor-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.sensor-card span {
    color: #1e293b;
    font-weight: 600;
    font-size: 0.95rem;
}

/* 应用界面展示 */
.app-interfaces {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.interfaces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.interface-card {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    padding: 1.5rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    border: 2px solid #fbbf24;
}

.interface-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(251, 191, 36, 0.2);
}

.interface-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.interface-content h4 {
    color: #92400e;
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.3rem 0;
}

.interface-content p {
    color: #b45309;
    font-size: 0.85rem;
    margin: 0;
}

.ai-highlight {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #ddd6fe, #c7d2fe);
    border-radius: 15px;
    border: 2px solid #8b5cf6;
}

.ai-highlight h4 {
    color: #5b21b6;
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0;
}

/* 无感健康监测 */
.health-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.data-collection {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.collection-title {
    font-size: 1.8rem;
    color: #1e40af;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
}

.collection-description {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    padding: 2rem;
    border-radius: 15px;
    border-left: 5px solid #3b82f6;
    margin-bottom: 2rem;
}

.collection-description p {
    color: #1e293b;
    line-height: 1.7;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.collection-description p:last-child {
    margin-bottom: 0;
}

.collection-description strong {
    color: #1e40af;
    font-weight: 700;
}

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

.device-group h4 {
    color: #1e40af;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-align: center;
}

.devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.device-item {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: #15803d;
    border: 2px solid #22c55e;
    transition: all 0.3s ease;
}

.device-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(34, 197, 94, 0.2);
}

/* 数据流转 */
.data-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    padding: 2rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.flow-stage {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #fef3c7, #fed7aa);
    border-radius: 15px;
    border: 2px solid #f59e0b;
    min-width: 150px;
    transition: all 0.3s ease;
}

.flow-stage:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.2);
}

.stage-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.flow-stage h4 {
    color: #92400e;
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
}

.flow-stage p {
    color: #b45309;
    font-size: 0.85rem;
    margin: 0;
}

/* 智能设备展示 */
.smart-devices-section {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.devices-title {
    font-size: 1.8rem;
    color: #1e40af;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
}

.room-layout {
    position: relative;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 20px;
    padding: 3rem;
    min-height: 400px;
    border: 3px solid #cbd5e1;
}

.room-title {
    font-size: 1.4rem;
    color: #1e40af;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
}

.layout-description {
    text-align: center;
    color: #64748b;
    font-size: 1rem;
    margin-bottom: 2rem;
}

.device-points {
    position: relative;
    width: 100%;
    height: 300px;
}

.point {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.point:hover {
    transform: scale(1.1);
}

.point-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
}

.point span {
    background: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #1e293b;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
}

/* 落地成果 - 重新设计 */
.achievements {
    background: white;
    padding: 80px 0;
}

.achievements-showcase {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 3rem;
}

/* 5行布局样式 */
.achievement-row {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 15px;
    transition: all 0.3s ease;
    border-left: 5px solid #3b82f6;
}

.achievement-row:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.row-icon {
    font-size: 3rem;
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
}

.row-content {
    flex: 1;
}

.row-content h3 {
    color: #1e293b;
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.row-content p {
    color: #64748b;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

/* 合作客户展示 */
.partners-showcase {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 20px;
    padding: 3rem;
    margin-top: 2rem;
    border-left: 5px solid #10b981;
}

.partners-showcase h3 {
    color: #1e293b;
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.partner-category {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.partner-category h4 {
    color: #3b82f6;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-align: center;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 1rem;
}

.partner-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.partner-name {
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    color: #1e293b;
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    text-align: center;
}

.partner-name:hover {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}





/* 关于我们 */
.about {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

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

.company-info {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.info-section {
    margin-bottom: 2rem;
}

.info-section h3 {
    color: #1e40af;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.info-section p {
    color: #666;
    line-height: 1.8;
}

.info-section ul {
    list-style: none;
    padding-left: 0;
}

.info-section li {
    color: #666;
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.info-section li::before {
    content: "✓";
    color: #10b981;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.contact-info {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-info h3 {
    color: #1e40af;
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.contact-item {
    margin: 1rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.contact-item strong {
    color: #1e40af;
}

.contact-item span {
    color: #666;
}

/* 页脚 */
.footer {
    background: #1e293b;
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-section h4 {
    color: #3b82f6;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-logo-img {
    height: 30px;
    margin-right: 10px;
}

.footer-logo-placeholder {
    width: 30px;
    height: 30px;
    background: linear-gradient(45deg, #3b82f6, #10b981);
    color: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 12px;
    margin-right: 10px;
}

.footer-logo-text {
    font-size: 1.2rem;
    font-weight: bold;
    color: #3b82f6;
}

.footer-desc {
    color: #94a3b8;
    line-height: 1.6;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin: 0.5rem 0;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #3b82f6;
}

.footer-contact p {
    color: #94a3b8;
    margin: 0.5rem 0;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 1rem;
    text-align: center;
    color: #94a3b8;
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.8s ease;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 1rem 0;
    }
    
    .nav-menu .nav-link.active {
        background: linear-gradient(45deg, #3b82f6, #10b981);
        color: white;
        padding: 0.8rem 1.5rem;
        border-radius: 25px;
    }
    
    .nav-menu .nav-link.active::after {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .title-main {
        font-size: 2.5rem;
    }

    .title-sub {
        font-size: 1rem;
    }

    .hero-features {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .hero-intro {
        margin: 1.5rem 0 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .highlight-item {
        padding: 1rem;
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .highlight-item:hover {
        transform: translateY(-5px);
    }
    
    .highlight-label {
        min-width: auto;
        white-space: normal;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .company-stats {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-cards-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin: 2rem 0;
    }
    
    .tech-main-card {
        padding: 2rem;
    }
    
    .tech-icon-circle {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }
    
    .tech-icon-wifi::before,
    .tech-icon-ai::before,
    .tech-icon-design::before {
        font-size: 1.5rem;
    }
    
    .tech-card-header h3 {
        font-size: 1.2rem;
    }
    
    .tech-features-tags {
        justify-content: center;
    }
    
    .feature-tag {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .tech-applications {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-top: 2rem;
    }
    
    .app-card {
        padding: 1.5rem;
        min-height: 100px;
    }
    
    .app-card-content h3 {
        font-size: 1.1rem;
    }
    
    .app-card-content p {
        font-size: 0.85rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }
    
    /* 产品分类标签响应式 */
    .product-tabs {
        flex-direction: column;
        gap: 0.8rem;
        margin: 2rem 0;
    }
    
    .tab-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
        width: 100%;
        text-align: center;
    }
    
    /* 产品展示卡片响应式 */
    .products-showcase {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin: 1.5rem 0;
    }
    
    .product-card {
        padding: 2rem;
    }
    
    .product-icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .product-card h4 {
        font-size: 1.2rem;
    }
    
    .product-card p {
        font-size: 0.9rem;
    }
    
    .feature-tag {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }
    
    /* 全部产品视图响应式 */
    .all-products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .category-section {
        padding: 1.5rem;
    }
    
    .category-title {
        font-size: 1.1rem;
    }
    
    .mini-product {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }

    .solutions-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .modules-grid {
        grid-template-columns: 1fr;
    }

    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    /* 核心应用场景响应式 */
    .scenarios-expanded {
        gap: 2rem;
    }
    
    .scenario-card {
        padding: 1.5rem;
    }
    
    .scenario-icon {
        font-size: 2rem;
    }
    
    .scenario-header {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
        padding: 1.5rem;
    }
    
    .scenario-badge {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .scenario-title-section h2 {
        font-size: 1.5rem;
    }
    
    /* 无感健康监测响应式 */
    .health-monitoring-ultra-simple,
    .communication-simple {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .health-highlights-simple {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .devices-grid-simple {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .comm-advantages {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    
    .room-bg {
        height: 280px;
    }
    
    .device-point span {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
    
    .column-title {
        font-size: 1.2rem;
    }
    
    .phone-mockup {
        width: 250px;
    }
    
    .health-stats {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .app-features {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    /* 医护对讲系统响应式 */
    .roles-diagram {
        flex-direction: column;
        gap: 2rem;
    }
    
    .connection-line {
        display: none;
    }
    
    .role-card {
        min-width: auto;
        width: 100%;
        max-width: 300px;
    }
    
    .table-header,
    .table-row {
        grid-template-columns: 1fr;
        text-align: left;
    }
    
    .header-cell {
        background: #1e40af;
        border-bottom: 1px solid rgba(255,255,255,0.2);
        padding: 1rem 1.5rem;
    }
    
    .feature-cell,
    .function-cell {
        padding: 1rem 1.5rem;
        border-bottom: 1px solid #e2e8f0;
    }
    
    .feature-cell {
        background: #f1f5f9;
        font-weight: 700;
    }
    
    .device-display {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .device-card.main-device {
        grid-row: span 1;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .emergency-flow {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .flow-step {
        max-width: 100%;
        padding: 1rem;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        font-size: 1.5rem;
    }
    
    .smart-hub {
        width: 300px;
        height: 300px;
    }
    
    .hub-center {
        width: 100px;
        height: 100px;
        font-size: 0.8rem;
    }
    
    .hub-icon {
        font-size: 1.5rem;
    }
    
    .hub-function {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateY(-120px) rotate(calc(-1 * var(--angle)));
    }
    
    .function-circle {
        width: 60px;
        height: 60px;
        font-size: 0.7rem;
    }
    
    .sensors-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }
    
    .sensor-card {
        padding: 1rem;
    }
    
    .sensor-icon {
        font-size: 2rem;
    }
    
    .interfaces-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .interface-card {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .data-flow {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .flow-stage {
        min-width: auto;
        width: 100%;
        padding: 1rem;
    }
    
    .devices-showcase {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .devices-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
    
    .room-layout {
        padding: 2rem;
        min-height: 300px;
    }
    
    .device-points {
        height: 250px;
    }
    
    .point {
        position: relative;
        display: inline-flex;
        margin: 0.5rem;
    }
    
    .point-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .point span {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }
    
    /* 解决方案响应式 */
    .arch-layer {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .app-modules-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }
    
    .layer-label {
        text-align: center;
    }
    
    .platform-engines,
    .network-technologies,
    .sensors-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 0.5rem;
    }
    
    .feature-item-large {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
    }
    
    .feature-image {
        font-size: 2rem;
    }
    
    .function-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .function-cards-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .function-card {
        padding: 1.5rem;
    }
    
    .function-icon {
        font-size: 2rem;
    }
    
    .function-header h4 {
        font-size: 1.1rem;
    }
    
    .function-header,
    .function-row {
        grid-template-columns: 1fr;
    }
    
    .func-col-1, .func-col-2, .func-col-3 {
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
        text-align: center;
    }
    
    .func-col-3 {
        border-bottom: none;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    section {
        padding: 60px 0;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .title-main {
        font-size: 2rem;
    }

    .feature-item {
        padding: 1.5rem;
    }

    .tech-card {
        padding: 2rem;
    }

    .product-category {
        padding: 1.5rem;
    }

    .scenario-card {
        padding: 2rem;
    }

    .achievement-item {
        padding: 1.5rem;
    }

    .company-info, .contact-info {
        padding: 2rem;
    }
    
    /* 落地成果响应式 */
    .achievement-row {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .row-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .partners-showcase {
        padding: 2rem;
    }
}