/* 基础样式继承并扩展首页风格 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #FFFFFF;
    color: #121826;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.container {
    width: 100%;
    max-width: 1580px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

/* 交替背景色 */
.bg-white {
    background-color: #FFFFFF;
}

.bg-light {
    background-color: #F5F7FA;
}

.section-title {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
    z-index: 2;
}

.section-title h2 {
    font-size: 40px;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    background: linear-gradient(90deg, #25D366, #128C7E);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.5px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #25D366, #128C7E);
    border-radius: 3px;
}

.section-title p {
    color: #3E4759;
    max-width: 700px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 1.7;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    font-size: 16px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: 0.6s;
    z-index: -1;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background-color: #25D366;
    color: #FFFFFF;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-primary:hover {
    background-color: #128C7E;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

.btn-secondary {
    background-color: #FFFFFF;
    color: #25D366;
    border: 1px solid #25D366;
}

.btn-secondary:hover {
    background-color: #E8F5E9;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(37, 211, 102, 0.15);
}

/* 导航锚点样式 */
.anchor-nav {
    position: sticky;
    top: 88px;
    background-color: #FFFFFF;
    box-shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
    z-index: 900;
}

.anchor-links {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 15px 0;
    flex-wrap: wrap;
}

.anchor-links a {
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 15px;
    color: #3E4759;
}

.anchor-links a:hover,
.anchor-links a.active {
    background-color: #E8F5E9;
    color: #128C7E;
}

/* Hero区样式 */
.hero-whatsapp {
    padding: 200px 0 150px;
    background: linear-gradient(rgba(255,255,255,0.97), rgba(255,255,255,0.97)), 
                url('whatsapp-hero-bg.jpg') center/cover no-repeat;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-whatsapp::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(37, 211, 102, 0.1) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-whatsapp h1 {
    font-size: 56px;
    margin-bottom: 25px;
    line-height: 1.3;
    background: linear-gradient(90deg, #25D366, #128C7E);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
    letter-spacing: -1px;
}

.hero-whatsapp p {
    font-size: 22px;
    color: #3E4759;
    max-width: 800px;
    margin: 0 auto 45px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

/* 功能介绍区样式 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3,  1fr);
    gap: 36px;
}

.feature-item {
    background-color: #FFFFFF;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.15);
}

.feature-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 30px;
    border-radius: 50%;
    background-color: #E8F5E9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: #25D366;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1);
    background-color: #25D366;
    color: #FFFFFF;
}

.feature-item h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #121826;
}

.feature-item p {
    color: #3E4759;
    line-height: 1.7;
}

/* 产品展示区样式 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.15);
}

.product-card-header {
    padding: 30px;
    background-color: #E8F5E9;
    text-align: center;
}

.product-card-icon {
    font-size: 48px;
    color: #25D366;
    margin-bottom: 20px;
}

.product-card-body {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #121826;
}

.product-card p {
    color: #3E4759;
    margin-bottom: 30px;
    flex-grow: 1;
}

.product-card .btn {
    width: 100%;
}

/* 产品对比表格样式 */
.comparison-table {
    overflow-x: auto;
    margin: 0 auto;
    max-width: 1200px;
}

.comparison-table table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
}

.comparison-table th,
.comparison-table td {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.comparison-table th {
    background-color: #E8F5E9;
    color: #128C7E;
    font-weight: 600;
    position: sticky;
    top: 0;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:nth-child(even) td {
    background-color: rgba(245, 247, 250, 0.5);
}

.comparison-table .feature-name {
    text-align: left;
    font-weight: 500;
    background-color: #FFFFFF;
    position: sticky;
    left: 0;
    z-index: 1;
}

.check {
    color: #25D366;
    font-size: 20px;
}

.cross {
    color: #F56565;
    font-size: 20px;
}

/* 案例与评价区样式 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 36px;
    margin-bottom: 60px;
}

.testimonial-card {
    background-color: #FFFFFF;
    padding: 35px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.15);
}

.stars {
    color: #FFD700;
    margin-bottom: 15px;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 25px;
    color: #3E4759;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    overflow: hidden;
}

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

.author-info h4 {
    font-size: 16px;
    color: #121826;
}

.author-info p {
    font-size: 14px;
    color: #6B7A90;
}

.case-study {
    background-color: #FFFFFF;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
    margin-bottom: 60px;
    text-align: center;
}

.case-study h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #128C7E;
}

.case-study p {
    font-size: 18px;
    color: #3E4759;
    max-width: 800px;
    margin: 0 auto 30px;
}

.client-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 60px;
    margin: 40px 0;
    background: #fff;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.15);
    border-radius: 12px;
    padding: 10px;
}

.client-logo {
    max-height: 60px;
    opacity: 0.7;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.client-logo:hover {
    opacity: 1;
    transform: scale(1.05);
}

/* CTA区样式 */
.cta-whatsapp {
    background: linear-gradient(135deg, #128C7E, #25D366);
    color: #FFFFFF;
    text-align: center;
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.cta-whatsapp::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(255,255,255,0.15) 0%, transparent 20%),
        radial-gradient(circle at 90% 70%, rgba(255,255,255,0.15) 0%, transparent 30%);
}

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

.cta-whatsapp h2 {
        font-size: 38px;
    margin-bottom: 25px;
    color: #FFFFFF;
}

.cta-whatsapp p {
    font-size: 20px;
    max-width: 700px;
    margin: 0 auto 45px;
    opacity: 0.9;
}

.cta-whatsapp .btn-primary {
    background-color: #FFFFFF;
    color: #25D366;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.cta-whatsapp .btn-secondary {
    background-color: transparent;
    color: #FFFFFF;
    border-color: #FFFFFF;
}

/* FAQ区样式 */
.faq-grid {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
}

.faq-question {
    background-color: #FFFFFF;
    padding: 20px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-question:hover {
    background-color: #E8F5E9;
    color: #128C7E;
}

.faq-question i {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.faq-answer {
    background-color: #FFFFFF;
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
    padding: 0 30px 30px;
    max-height: 500px;
}

.faq-answer p {
    color: #3E4759;
    line-height: 1.7;
}

/* 博客板块样式 */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 36px;
    margin-bottom: 60px;
}

.blog-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.15);
}

.blog-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-content {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 14px;
    color: #6B7A90;
}

.blog-category {
    background-color: #E8F5E9;
    color: #128C7E;
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 500;
}

.blog-title {
    font-size: 22px;
    margin-bottom: 15px;
    color: #121826;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 1.4;
}

.blog-card:hover .blog-title {
    color: #128C7E;
}

.blog-content p {
    color: #3E4759;
    margin-bottom: 25px;
    flex-grow: 1;
    line-height: 1.7;
}

.blog-read-more {
    display: inline-flex;
    align-items: center;
    font-weight: 600;
    color: #25D366;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-read-more i {
    margin-left: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-read-more:hover {
    color: #128C7E;
}

.blog-read-more:hover i {
    transform: translateX(5px);
}

.blog-pagination {
    text-align: center;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .blog-grid {
        gap: 25px;
    }
    
    .blog-image {
        height: 180px;
    }
    
    .blog-title {
        font-size: 20px;
    }
    .features-grid {
    grid-template-columns: 1fr;
}
.products-grid {
    grid-template-columns:  1fr;

}
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-whatsapp h1 {
        font-size: 42px;
    }
    
    .section-title h2 {
        font-size: 34px;
    }
    
    .anchor-links a {
        padding: 6px 15px;
        font-size: 14px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 80px 0;
    }
    
    .hero-whatsapp {
        padding: 160px 0 100px;
    }
    
    .hero-whatsapp h1 {
        font-size: 36px;
    }
    
    .hero-whatsapp p {
        font-size: 18px;
    }
    
    .section-title {
        margin-bottom: 50px;
    }
    
    .section-title h2 {
        font-size: 30px;
    }
    
    .section-title p {
        font-size: 16px;
    }
    
    .features-grid,
    .products-grid,
    .testimonials-grid {
        gap: 25px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 15px;
    }
}