/* 首页样式 */

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,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');
    opacity: 0.1;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    line-height: 1.6;
}

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

.hero-buttons .btn {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.5s ease;
    text-decoration: none;
    display: inline-block;
    min-width: 140px;
    text-align: center;
}

.hero-buttons .btn-primary {
    background-color: white;
    color: #3b82f6;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.hero-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(59, 130, 246, 0.4);
}

.hero-buttons .btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.hero-buttons .btn-secondary:hover {
    background-color: white;
    color: #3b82f6;
    transform: translateY(-2px);
}

/* 功能特点 */
.features {
    padding: 6rem 0;
    background-color: #f8fafc;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.features .subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background-color: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #2563eb);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.2);
}

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

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 客户评价 */
.testimonials {
    padding: 6rem 0;
    background-color: white;
}

.testimonials h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.testimonials .subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.testimonial-card {
    background-color: #f8fafc;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
    margin-bottom: 2rem;
}

.testimonial-content p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-color);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.2rem;
}

.author-info h4 {
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.author-info p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

/* 常见问题 */
.faq {
    padding: 6rem 0;
    background-color: #f8fafc;
}

.faq h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.faq .subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.faq-item {
    background-color: #f8fafc;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: 8px 8px 16px rgba(166, 180, 200, 0.15), -8px -8px 16px rgba(255, 255, 255, 0.8);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background-color: white;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background-color: #f8fafc;
}

.faq-question.active {
    background-color: #f0f7ff;
}

.faq-question i {
    font-size: 1.2rem;
    color: #3b82f6;
    transition: transform 0.3s ease;
}

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

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-answer.active {
    padding: 0 1.5rem 1.5rem;
    max-height: 200px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.6;
}

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

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.about .subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.about-text {
    background-color: #f8fafc;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 10px 10px 20px rgba(166, 180, 200, 0.15), -10px -10px 20px rgba(255, 255, 255, 0.8);
}

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

.about-text p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.about-text ul {
    list-style: none;
    padding: 0;
}

.about-text ul li {
    color: var(--text-color);
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.about-text ul li::before {
    content: '•';
    color: #3b82f6;
    font-size: 1.2rem;
    position: absolute;
    left: 0;
    top: -2px;
}

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

.feature-item {
    background-color: #f8fafc;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 8px 8px 16px rgba(166, 180, 200, 0.15), -8px -8px 16px rgba(255, 255, 255, 0.8);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 12px 12px 24px rgba(166, 180, 200, 0.2), -12px -12px 24px rgba(255, 255, 255, 0.9);
}

.feature-item .feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.2);
}

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

.feature-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.feature-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .features h2,
    .testimonials h2,
    .faq h2,
    .about h2 {
        font-size: 2.2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-features {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 4rem 0;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
    
    .features,
    .testimonials,
    .faq,
    .about {
        padding: 4rem 0;
    }
    
    .features h2,
    .testimonials h2,
    .faq h2,
    .about h2 {
        font-size: 1.8rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .feature-card,
    .testimonial-card,
    .about-text,
    .feature-item {
        padding: 1.5rem;
    }
}

/* 产品优势 */
.advantages {
    padding: 6rem 0;
    background-color: #f8fafc;
}

.advantages h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.advantages .subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.advantage-card {
    background-color: #f8fafc;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 10px 10px 20px rgba(166, 180, 200, 0.15), -10px -10px 20px rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 15px 15px 30px rgba(166, 180, 200, 0.2), -15px -15px 30px rgba(255, 255, 255, 0.9);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.2);
}

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

.advantage-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.advantage-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 合作伙伴 */
.partners {
    padding: 6rem 0;
    background-color: white;
}

.partners h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.partners .subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.partner-item {
    background-color: #f8fafc;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 10px 10px 20px rgba(166, 180, 200, 0.15), -10px -10px 20px rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    text-align: center;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 15px 15px 30px rgba(166, 180, 200, 0.2), -15px -15px 30px rgba(255, 255, 255, 0.9);
}

.partner-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.2);
}

.partner-logo i {
    font-size: 2rem;
    color: white;
}

.partner-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

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

.fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}

/* 延迟动画 */
.delay-1 {
    animation-delay: 0.1s;
}

.delay-2 {
    animation-delay: 0.2s;
}

.delay-3 {
    animation-delay: 0.3s;
}

.delay-4 {
    animation-delay: 0.4s;
}

.delay-5 {
    animation-delay: 0.5s;
}

.delay-6 {
    animation-delay: 0.6s;
}

/* 响应式设计调整 */
@media (max-width: 992px) {
    .advantages h2,
    .partners h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .advantages,
    .partners {
        padding: 4rem 0;
    }
    
    .advantages h2,
    .partners h2 {
        font-size: 1.8rem;
    }
    
    .advantages-grid,
    .partners-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .advantage-card,
    .partner-item {
        padding: 1.5rem;
    }
}