/* 现代设计风格的CSS文件 */

/* 全局样式 */
:root {
    --primary-color: #4f46e5;
    --primary-light: #818cf8;
    --primary-dark: #3730a3;
    --secondary-color: #ec4899;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--light-color);
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
   padding: 16px 0;
}

/* 文本中心对齐 */
.text-center {
    text-align: center;
}

/* 渐变背景 */
.gradient-bg {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

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

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* 部分标题 */
.section-header {
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #f0f4ff, #fef2f2);
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.hero-content {
    flex: 1;
}

.hero-image {
    flex: 1;
}

.hero-badge {
    display: inline-block;
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}

.hero-title span {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

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

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-text {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.hero-image-wrapper {
    position: relative;
}

.hero-main-image {
    width: 100%;
    height: auto;
 
}

.hero-main-image:hover {
    transform: scale(1.02);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.2) 0%, rgba(236, 72, 153, 0.1) 100%);
    border-radius: 50%;
    z-index: -1;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23ffffff' fill-opacity='1' d='M0,160L48,165.3C96,171,192,181,288,160C384,139,480,85,576,90.7C672,96,768,160,864,181.3C960,203,1056,181,1152,160C1248,139,1344,117,1392,106.7L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* 品牌信任 */
.brand-trust {
    background-color: white;
    padding: 4rem 0;
}

.brand-trust-text {
    text-align: center;
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.brand-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    color: var(--gray-600);
    font-weight: 500;
    transition: var(--transition);
}

.brand-logo i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.brand-logo:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* 产品特性 */
.features {
    background-color: var(--gray-100);
    padding: 8rem 0;
}

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

.feature-card {
    background-color: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

.feature-card.hover-lift:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.feature-desc {
    color: var(--gray-600);
    font-size: 1rem;
}

/* 安全技术 */
.security {
    background-color: white;
    padding: 8rem 0;
}

.security-container {
    display: flex;
    align-items: center;
    gap: 5rem;
}

.security-features {
    flex: 1;
}

.security-visual {
    flex: 1;
}

.security-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--gray-100);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.security-item:hover {
    transform: translateX(5px);
    background-color: var(--gray-200);
}

.security-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.security-icon-inner {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.security-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.security-content p {
    color: var(--gray-600);
    font-size: 1rem;
}

.security-visual-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
}

.security-shield {
    font-size: 12rem;
    color: var(--primary-color);
    opacity: 0.1;
    position: relative;
    z-index: 1;
}

.security-circles {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.circle {
    position: absolute;
    border-radius: 50%;
    border: 2px dashed var(--primary-light);
    animation: rotate 20s linear infinite;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: -150px;
    left: -150px;
    animation-duration: 30s;
}

.circle-2 {
    width: 200px;
    height: 200px;
    top: -100px;
    left: -100px;
    animation-duration: 20s;
    animation-direction: reverse;
}

.circle-3 {
    width: 100px;
    height: 100px;
    top: -50px;
    left: -50px;
    animation-duration: 10s;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* 客户评价 */
.testimonials {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 8rem 0;
    color: white;
}

.testimonials .section-title {
    color: white;
}

.testimonials .section-title::after {
    background: linear-gradient(90deg, white, rgba(255, 255, 255, 0.5));
}

.testimonials .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

.testimonials-slider {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 2rem 0;
    scroll-behavior: smooth;
    scrollbar-width: none;
}

.testimonials-slider::-webkit-scrollbar {
    display: none;
}

.testimonial-card {
    min-width: 350px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.15);
}

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

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid white;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-info h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.testimonial-info p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.testimonial-rating {
    margin-left: auto;
}

.testimonial-rating i {
    color: #fbbf24;
    font-size: 1rem;
}

.testimonial-content {
    font-size: 1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

.testimonial-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active {
    background-color: white;
    width: 24px;
    border-radius: 6px;
}

/* 常见问题 */
.faq {
    background-color: var(--gray-100);
    padding: 8rem 0;
}

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

.faq-col {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background-color: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--gray-900);
    background-color: white;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--gray-50);
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer {
   
    color: var(--gray-600);
    line-height: 1.6;
}

/* 下载区域 */
.download {
    background-color: white;
    padding: 8rem 0;
}

.download-inner {
    display: flex;
    align-items: center;
    gap: 3rem;
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    padding: 3rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.download-content {
    flex: 1;
}

.download-image {
    flex: 1;
}

.download-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.download-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.download-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: white;
    color: var(--gray-900);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.download-btn i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.download-btn-text {
    display: flex;
    flex-direction: column;
}

.download-btn-subtitle {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.download-btn-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.download-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* 页脚 */
footer {
    background-color: var(--gray-900);
    color: white;
    padding: 5rem 0 2rem;
}

.footer-main {
    display: flex;
    justify-content: space-between;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    flex: 1;
    max-width: 300px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    display: block;
    padding: 0.25rem 0;
}

.footer-links a:hover {
    color: white;
    transform: translateX(5px);
}

.contact-info {
    list-style: none;
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

.contact-info i {
    color: var(--primary-color);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.copyright-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.copyright-links a:hover {
    color: white;
}

footer .copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .security-container {
        gap: 3rem;
    }
}

@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .security-container {
        flex-direction: column;
        text-align: center;
    }
    
    .security-item {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .download-inner {
        flex-direction: column;
        text-align: center;
    }
    
    .download-buttons {
        justify-content: center;
    }
    
    .footer-main {
        flex-direction: column;
    }
    
    .footer-brand {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .features, .security, .testimonials, .faq, .download {
        padding: 6rem 0;
    }
    
    .brand-logos {
        gap: 2rem;
    }
    
    .testimonial-card {
        min-width: 100%;
    }
    
    .download-title {
        font-size: 2rem;
    }
    
    .footer-links-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .download-inner {
        padding: 2rem;
    }
    
    .download-buttons {
        flex-direction: column;
    }
}