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

:root {
    --primary-gradient: linear-gradient(135deg, #e53935 0%, #c62828 100%);
    --secondary-gradient: linear-gradient(135deg, #ef5350 0%, #c62828 100%);
    --success-gradient: linear-gradient(135deg, #ff7043 0%, #e64a19 100%);
    --accent-gradient: linear-gradient(135deg, #ffb74d 0%, #ff8f00 100%);
    --dark-gradient: linear-gradient(135deg, #b71c1c 0%, #7f0000 100%);
    --primary-color: #e53935;
    --secondary-color: #ef5350;
    --success-color: #ff7043;
    --accent-color: #ffb74d;
    --text-primary: #333;
    --text-secondary: #666;
    --text-light: #fff;
    --text-dark: #333;
    --bg-primary: #fff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #333;
    --border-color: #e0e0e0;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.3;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-image {
    width: 32px;
    height: 32px;
    margin-right: 0.5rem;
    border-radius: 4px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-light);
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--text-light);
}

.btn-success {
    background: var(--success-color);
    color: var(--text-light);
}

.btn-accent {
    background: var(--accent-color);
    color: var(--text-dark);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn:hover {
    opacity: 0.9;
}

.btn:active {
    opacity: 0.8;
}

/* 英雄区域 */
.hero {
    background: #e53935; /* 使用纯色作为备选 */
    background: linear-gradient(135deg, #e53935 0%, #ef5350 100%);
    color: var(--text-light);
    height: 500px; /* 固定高度 */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
    text-align: center;
}

/* 英雄区域装饰效果 */
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: hero-pulse 15s ease-in-out infinite;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: #ffffff;
    z-index: 2;
}

@keyframes hero-pulse {
    0%, 100% {
        transform: scale(1) rotate(0deg);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.2) rotate(5deg);
        opacity: 0.5;
    }
}

/* 英雄区域的按钮样式 */
.hero .btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.hero .btn-primary {
    background: white;
    color: var(--primary-color);
}

.hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

/* 产品展示区域 */
.products {
    padding: 3rem 0;
    background: var(--bg-secondary);
}

.product-detail {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
}

.section-title h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.section-title p {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.product-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    height: 200px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--text-light);
}

.product-icon {
    width: 80%;
    height: 80%;
    object-fit: contain;
    border-radius: var(--border-radius);
}

.product-content {
    padding: 1.25rem;
}

.product-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.product-content p {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

/* 功能特点区域 */
.features {
    padding: 3rem 0;
    background: var(--bg-primary);
}

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

.feature-item {
    text-align: center;
    padding: 1.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.feature-item:hover {
    background: var(--bg-secondary);
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-light);
    margin: 0 auto 0.5rem;
    transition: var(--transition);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1);
}

.feature-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.feature-item p {
    color: var(--text-secondary);
}

/* 子栏目区域 */
.sub-section {
    padding: 3rem 0;
    background: var(--bg-secondary);
    margin-bottom: 1.5rem;
}

.sub-section:nth-child(even) {
    background: var(--bg-primary);
}

/* 子栏目区域的按钮样式 */
.sub-section .btn-primary {
    background: var(--primary-gradient);
    color: white;
}

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

.sub-section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.sub-section-header p {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.sub-section-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    align-items: center;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.sub-section-text {
    order: 1;
}

.sub-section-image {
    order: 2;
    background: transparent;
    height: 300px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--text-light);
}

/* 手机外观样式已简化，与普通图片容器保持一致 */
.phone-mockup {
    background: transparent;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

/* 截图通用样式 */
.app-screenshot,
.bot-screenshot,
.link-screenshot,
.gzh-screenshot {
    width: 80%;
    height: 80%;
    object-fit: contain;
    border-radius: var(--border-radius);
}

.sub-section:nth-child(even) .sub-section-text {
    order: 2;
}

.sub-section:nth-child(even) .sub-section-image {
    order: 1;
}

.sub-section-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    color: var(--text-primary);
}

.sub-section-text p {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

.sub-section-features {
    list-style: none;
    margin-bottom: 1rem;
}

.sub-section-features li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.sub-section-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 优势介绍区域 */
.advantages {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.advantages-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    align-items: center;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.advantages-text {
    order: 1;
}

.advantages-image {
    order: 2;
    background: transparent;
    height: 400px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    color: var(--text-light);
    border: none;
}

.advantages-text h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.advantages-text p {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

.advantages-list {
    list-style: none;
    margin-bottom: 1rem;
}

.advantages-list li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.advantages-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 花卷生活APP优势区域样式 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.advantage-card {
    background: var(--bg-primary);
    padding: 2rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: rgba(229, 57, 53, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin: 0 auto 0.8rem;
    transition: var(--transition);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1);
}

.advantage-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.advantage-card p {
    color: var(--text-secondary);
    line-height: 1.3;
}

/* 应用场景区域 */
.scenarios {
    padding: 5rem 0;
    background: var(--bg-primary);
}

.scenarios-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    align-items: center;
    margin-top: 3rem;
}

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

.mobile-device {
    width: 280px;
    height: 580px;
    background: #000;
    border-radius: 40px;
    padding: 15px;
    box-shadow: var(--shadow-hover);
    position: relative;
}

.mobile-device::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 30px;
    background: #000;
    border-radius: 0 0 20px 20px;
}

.device-screen {
    width: 100%;
    height: 100%;
    background: #f0f0f0;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}

.screen-content {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #ff5f6d 0%, #ff0844 100%);
    padding: 10px;
}

.app-header {
    background: rgba(255, 255, 255, 0.9);
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 10px;
}

.app-banner {
    background: rgba(255, 255, 255, 0.8);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 15px;
    font-weight: bold;
    color: #ff0844;
}

.app-icons {
    background: rgba(255, 255, 255, 0.9);
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
}

.icon-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.icon-row:last-child {
    margin-bottom: 0;
}

.app-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 87, 34, 0.8);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-weight: bold;
}

.app-promo {
    background: rgba(255, 215, 0, 0.9);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-weight: bold;
    color: #d80000;
    border: 2px solid #ffcc00;
}

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

.scenario-card {
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.scenario-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.scenario-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 0.4rem;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.scenario-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0;
    background: rgba(229, 57, 53, 0.1);
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 应用场景图片样式 */
.scenarios-image-style {
    margin-top: 3rem;
    padding: 2rem 0;
}

.scenario-circle {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.scenario-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    transform: translateY(-50%);
    z-index: 1;
}

.scenario-circle-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    max-width: 200px;
    z-index: 2;
}

.scenario-circle-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.scenario-icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
}

.scenario-icon-circle::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
    border-radius: 50%;
}

.scenario-icon-circle.blue {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.scenario-icon-circle.orange {
    background: linear-gradient(135deg, #f97316, #ea580c);
}

.scenario-icon-circle.green {
    background: linear-gradient(135deg, #22c55e, #16a34a);
}

.scenario-icon-circle.purple {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.scenario-icon-circle.red {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.scenario-icon-circle.yellow {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.scenario-circle {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.scenario-circle-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.scenario-circle-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin: 0;
}

/* 全渠道连接客户区域样式 */
.customer-connection {
    padding: 5rem 0;
    background-color: #f9f9f9;
}

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

.connection-header h2 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: #333;
}

.connection-header p {
    font-size: 1rem;
    color: #666;
    margin: 0;
    line-height: 1.3;
}

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

.connection-card {
    background-color: white;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.connection-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
}

.connection-icon {
    width: 80px;
    height: 80px;
    background-color: #f5f7fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.8rem;
    color: #3498db;
    font-size: 2rem;
}

.connection-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #333;
}

.connection-card p {
    font-size: 1rem;
    color: #666;
    line-height: 1.3;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .customer-connection {
        padding: 3rem 0;
    }
    
    .connection-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .connection-card {
        padding: 1.5rem;
    }
    
    .connection-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }
    
    .connection-header h2 {
        font-size: 1.5rem;
    }
}

/* 解决方案区域样式 */
.solutions {
    padding: 50px 0;
    background-color: #f8f9fa;
}

.solutions .section-title {
    text-align: center;
    margin-bottom: 20px;
}

.solutions .section-title h2 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: #333;
}

.solutions .section-title p {
    font-size: 1rem;
    color: #666;
    margin: 0;
    line-height: 1.3;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.solution-card {
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.solution-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    text-align: center;
}

.solution-card.card-red .solution-badge {
    background-color: #ff6b6b;
}

.solution-card.card-purple .solution-badge {
    background-color: #9b59b6;
}

.solution-card.card-orange .solution-badge {
    background-color: #f39c12;
}

.solution-card.card-blue .solution-badge {
    background-color: #3498db;
}

.solution-card.card-yellow .solution-badge {
    background-color: #f1c40f;
}

.solution-card.card-dark .solution-badge {
    background-color: #34495e;
}

.solution-badge span {
    position: absolute;
    bottom: -5px;
    right: -5px;
    font-size: 0.6rem;
    padding: 2px 6px;
    border-radius: 10px;
    background-color: rgba(0, 0, 0, 0.3);
}

.solution-card h3 {
    font-size: 1.3rem;
    margin-top: 0;
    margin-bottom: 3px;
    color: #333;
}

.solution-card p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 8px;
    line-height: 1.3;
}

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

.solution-features li {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 4px;
    padding-left: 15px;
    position: relative;
    line-height: 1.2;
}

.solution-features li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: inherit;
    font-weight: bold;
}

.solution-card.card-red h3 {
    color: #ff6b6b;
}

.solution-card.card-purple h3 {
    color: #9b59b6;
}

.solution-card.card-orange h3 {
    color: #f39c12;
}

.solution-card.card-blue h3 {
    color: #3498db;
}

.solution-card.card-yellow h3 {
    color: #f1c40f;
}

.solution-card.card-dark h3 {
    color: #34495e;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions .section-title h2 {
        font-size: 1.5rem;
    }
}



/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 1.5rem 0 0.5rem;
}

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

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.footer-section p,
.footer-section li {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--text-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 0.5rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.3;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-title h2,
    .sub-section-header h2,
    .contact h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        transition: var(--transition);
        box-shadow: var(--shadow);
    }

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

    .nav-links li {
        margin: 1rem 0;
    }

    .menu-toggle {
        display: block;
    }

    .hero {
        padding: 6rem 0 3rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .product-grid,
    .features-grid,
    .scenarios-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .sub-section-content,
    .advantages-content,
    .scenarios-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .sub-section-text,
    .sub-section-image,
    .advantages-text,
    .advantages-image,
    .scenarios-image {
        order: 1 !important;
    }

    .mobile-device {
        width: 240px;
        height: 500px;
    }

    .scenarios {
        padding: 2.5rem 0;
    }

    .scenarios-content {
        gap: 1.5rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-title h2,
    .sub-section-header h2,
    .contact h2 {
        font-size: 1.75rem;
    }

    .sub-section-text h3,
    .advantages-text h3 {
        font-size: 1.5rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动到顶部按钮 */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    opacity: 0.9;
}

/* 页面部分样式 */
.page-section {
    padding-top: 6rem;
    padding-bottom: 3rem;
}

/* 淡入效果 */
.fade-in {
    opacity: 0;
    transition: opacity 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
}