/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
    max-width: 100vw;
}

body {
    font-family: 'Inter', sans-serif;
    background: #ffffff;
    color: #1a1a1a;
    line-height: 1.6;
    overflow-x: hidden;
    max-width: 100vw;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    overflow-x: hidden;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    overflow-x: hidden;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-symbol {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 1.2rem;
}

.logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1.3rem;
    color: #1a1a1a;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    color: #1a1a1a;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #667eea;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

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

.cta-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #1a1a1a;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(600px, 90vw);
    height: min(600px, 90vw);
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: glowPulse 4s ease-in-out infinite;
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    overflow-x: hidden;
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.primary-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.primary-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.3);
}

.secondary-button {
    background: transparent;
    color: #1a1a1a;
    border: 2px solid #e5e7eb;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.secondary-button:hover {
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 500px;
}

.floating-card {
    position: absolute;
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.floating-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.floating-card i {
    font-size: 2rem;
    color: #667eea;
}

.floating-card span {
    font-weight: 600;
    color: #1a1a1a;
    font-size: 0.9rem;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation: float1 6s ease-in-out infinite;
}

.card-2 {
    top: 60%;
    right: 20%;
    animation: float2 6s ease-in-out infinite;
    animation-delay: 1s;
}

.card-3 {
    bottom: 20%;
    left: 20%;
    animation: float3 6s ease-in-out infinite;
    animation-delay: 2s;
}

.card-4 {
    top: 40%;
    right: 10%;
    animation: float4 6s ease-in-out infinite;
    animation-delay: 3s;
}

/* 关于我们 */
.about {
    padding: 6rem 0;
    background: #f8fafc;
}

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

.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

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

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

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.about-text p {
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.7;
}

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

.feature-item {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

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

.feature-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

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

/* 服务 */
.services {
    padding: 6rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
    border-color: #667eea;
}

.service-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.service-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon i {
    font-size: 1.2rem;
    color: white;
}

.service-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a1a1a;
}

.service-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-features {
    list-style: none;
    margin-bottom: 2rem;
}

.service-features li {
    padding: 0.5rem 0;
    color: #666;
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.service-button {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.service-button:hover {
    background: #667eea;
    color: white;
}

/* 解决方案 */
.solutions {
    padding: 6rem 0;
    background: #f8fafc;
}

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

.solution-item {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.solution-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.solution-icon i {
    font-size: 2rem;
    color: white;
}

.solution-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.solution-item p {
    color: #666;
    line-height: 1.6;
}

/* 联系 */
.contact {
    padding: 6rem 0;
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 16px;
    transition: all 0.3s ease;
}

.info-item:hover {
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-icon i {
    color: white;
    font-size: 1.2rem;
}

.info-details h4 {
    color: #1a1a1a;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.info-details p {
    color: #666;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group {
    position: relative;
}

.form-input {
    width: 100%;
    background: #f8fafc;
    border: 2px solid transparent;
    color: #1a1a1a;
    padding: 1rem;
    border-radius: 12px;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
}

.form-input::placeholder {
    color: #999;
}

/* WhatsApp按钮样式 */
.contact-form .primary-button {
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    border: none;
    transition: all 0.3s ease;
}

.contact-form .primary-button:hover {
    background: linear-gradient(135deg, #128C7E 0%, #25D366 100%);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
    transform: translateY(-3px);
}

.contact-form .primary-button:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.contact-form .primary-button .fab {
    font-size: 1.2rem;
    margin-left: 0.5rem;
    animation: whatsappPulse 2s infinite;
}

@keyframes whatsappPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 4rem 0 2rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-logo .logo-symbol {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 1.2rem;
}

.footer-logo span {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1.3rem;
    color: white;
}

.footer-section p {
    color: #999;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: translateY(-2px);
}

.footer-section h4 {
    color: white;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #999;
}

.footer-link {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #ffffff;
}

/* 隐私权政策页面样式 */
.privacy-policy {
    padding: 8rem 0 4rem;
    background: #f8fafc;
    min-height: 100vh;
}

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

.policy-header h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.policy-header p {
    color: #666;
    font-size: 1.1rem;
}

.policy-content {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.policy-section {
    margin-bottom: 3rem;
}

.policy-section:last-child {
    margin-bottom: 0;
}

.policy-section h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1.5rem;
}

.policy-section p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.policy-section ul {
    list-style: none;
    margin: 1rem 0;
}

.policy-section ul li {
    color: #666;
    line-height: 1.7;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.policy-section ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.contact-info-policy {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    margin-top: 1rem;
}

.contact-info-policy p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-info-policy i {
    color: #667eea;
    width: 20px;
}

/* 隐私政策页面移动端优化 */
@media (max-width: 768px) {
    .privacy-policy {
        padding: 6rem 0 4rem;
    }
    
    .policy-header h1 {
        font-size: 2rem;
        line-height: 1.2;
        word-wrap: break-word;
    }
    
    .policy-header p {
        font-size: 1rem;
    }
    
    .policy-content {
        padding: 2rem;
        margin: 0;
        border-radius: 16px;
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }
    
    .policy-section {
        margin-bottom: 2.5rem;
    }
    
    .policy-section h2 {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: 1rem;
        word-wrap: break-word;
    }
    
    .policy-section p {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 1rem;
    }
    
    .policy-section ul {
        margin: 1rem 0;
        padding-left: 0;
    }
    
    .policy-section ul li {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 0.8rem;
        padding-left: 1.2rem;
    }
    
    .contact-info-policy {
        padding: 1.5rem;
        margin-top: 1rem;
        border-radius: 12px;
    }
    
    .contact-info-policy p {
        font-size: 0.95rem;
        margin-bottom: 0.5rem;
    }
}

@media (max-width: 480px) {
    .privacy-policy {
        padding: 5rem 0 3rem;
    }
    
    .policy-header h1 {
        font-size: 1.8rem;
    }
    
    .policy-header p {
        font-size: 0.9rem;
    }
    
    .policy-content {
        padding: 1.5rem;
        border-radius: 12px;
    }
    
    .policy-section {
        margin-bottom: 2rem;
    }
    
    .policy-section h2 {
        font-size: 1.3rem;
        margin-bottom: 0.8rem;
    }
    
    .policy-section p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .policy-section ul li {
        font-size: 0.9rem;
        line-height: 1.5;
        margin-bottom: 0.6rem;
        padding-left: 1rem;
    }
    
    .contact-info-policy {
        padding: 1rem;
    }
    
    .contact-info-policy p {
        font-size: 0.9rem;
    }
    
    /* 隐私政策页面阅读体验优化 */
    .policy-section ul li::before {
        font-size: 1rem;
        margin-right: 0.5rem;
    }
    
    .policy-section ul {
        line-height: 1.5;
    }
    
    .policy-section p, .policy-section li {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    
    /* 隐私政策页面链接和交互优化 */
    .footer-link {
        min-height: 44px;
        padding: 0.5rem 0;
        display: inline-block;
        touch-action: manipulation;
    }
    
    .contact-info-policy p {
        padding: 0.2rem 0;
        min-height: auto;
    }
    
    .contact-info-policy strong {
        display: block;
        margin-bottom: 0.5rem;
    }
}

/* 动画 */
@keyframes glowPulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

@keyframes float1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-25px); }
}

@keyframes float4 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    html, body {
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    * {
        max-width: 100%;
    }
    
    .container {
        padding: 0 1rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .nav-container {
        padding: 0 1rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        padding: 2rem 1rem;
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-cta {
        display: none;
    }
    
    .logo-image {
        max-height: 35px;
        width: auto;
    }
    
    .hero {
        padding-top: 100px;
        min-height: 90vh;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        padding: 0 1rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
        margin-bottom: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .service-card {
        padding: 2rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .solution-item {
        padding: 2rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .primary-button, .secondary-button {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .floating-card {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        bottom: auto;
        display: flex;
        margin: 1rem auto;
        max-width: 200px;
        animation: fadeInUp 0.6s ease forwards;
        opacity: 0;
        transform: translateY(20px);
    }
    
    .floating-card:nth-child(1) {
        animation-delay: 0.1s;
    }
    
    .floating-card:nth-child(2) {
        animation-delay: 0.2s;
    }
    
    .floating-card:nth-child(3) {
        animation-delay: 0.3s;
    }
    
    .floating-card:nth-child(4) {
        animation-delay: 0.4s;
    }
    
    .floating-card:active {
        transform: translateY(0) scale(0.95);
        transition: transform 0.1s ease;
    }
    
    .hero-visual {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        height: auto;
        padding: 2rem 0;
    }
    
    .about-text h3 {
        font-size: 1.3rem;
    }
    
    .feature-item {
        padding: 1.5rem;
    }
    
    .info-item {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .info-details {
        text-align: center;
    }
}

/* 更小屏幕的额外调整 */
@media (max-width: 480px) {
    html, body {
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .hero-title {
        font-size: 1.8rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .section-title {
        font-size: 1.8rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .hero-content {
        padding: 0 0.5rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .container {
        padding: 0 0.5rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .nav-container {
        padding: 0 0.5rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .service-card, .solution-item, .feature-item {
        padding: 1.5rem;
    }
    
    .form-input {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
    
    .primary-button, .secondary-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }
    
    .policy-content {
        padding: 1.5rem;
    }
    
    .floating-card {
        padding: 1rem;
        margin: 0.8rem auto;
        max-width: 180px;
        font-size: 0.9rem;
    }
    
    .floating-card i {
        font-size: 1.5rem;
    }
    
    .hero-visual {
        padding: 1rem 0;
        gap: 0.8rem;
    }
}

/* 修复Logo图片样式 */
.logo-image {
    max-height: 40px;
    width: auto;
    object-fit: contain;
}

/* 全局防溢出保护 */
* {
    max-width: 100%;
}

html, body, #root, .app {
    max-width: 100vw;
    overflow-x: hidden;
}

/* 防止长文本导致溢出 */
p, h1, h2, h3, h4, h5, h6, span, div {
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

/* 移动端触摸优化 */
@media (max-width: 768px) {
    /* 增大触摸目标 */
    .nav-link {
        padding: 1rem 0;
        display: block;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(0,0,0,0.1);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .mobile-menu-toggle {
        padding: 0.5rem;
        min-width: 44px;
        min-height: 44px;
        justify-content: center;
        align-items: center;
    }
    
    /* 表单元素在移动端的改进 */
    .form-input, .primary-button, .secondary-button, .service-button, .cta-button {
        min-height: 44px;
        touch-action: manipulation;
    }
    
    /* 防止双击缩放 */
    button, .primary-button, .secondary-button, .service-button, .cta-button {
        touch-action: manipulation;
    }
    
    /* 滚动性能优化 */
    .hero-content, .about-grid, .services-grid, .solutions-grid, .contact-content {
        -webkit-overflow-scrolling: touch;
    }
    
    /* 移动端导航样式改进 */
    .nav-menu.active {
        max-height: calc(100vh - 80px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    /* 移动端卡片间距调整 */
    .service-card:not(:last-child),
    .solution-item:not(:last-child),
    .feature-item:not(:last-child) {
        margin-bottom: 1rem;
    }
    
    /* 移动端文本选择优化 */
    .hero-title, .section-title {
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
    
    /* 确保所有section和主要元素不会溢出 */
    section, .hero, .about, .services, .solutions, .contact, .footer, .privacy-policy {
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .about-grid, .feature-grid, .contact-content, .footer-content, .policy-content, .policy-header {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }
    
    .feature-item, .info-item, .policy-section, .contact-info-policy {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    /* 表单元素宽度控制 */
    .contact-form, .form-group, .form-input {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    /* 按钮宽度控制 */
    .primary-button, .secondary-button, .service-button, .cta-button {
        max-width: 100%;
        box-sizing: border-box;
    }
    
    /* WhatsApp按钮样式增强 */
    .contact-form .primary-button {
        background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
        box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
        transition: all 0.3s ease;
    }
    
    .contact-form .primary-button:hover {
        background: linear-gradient(135deg, #128C7E 0%, #25D366 100%);
        box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
        transform: translateY(-2px);
    }
    
    .contact-form .primary-button:active {
        transform: translateY(0);
        box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    }
    
    .contact-form .primary-button .fab {
        font-size: 1.2rem;
        margin-left: 0.5rem;
    }
}