/* 全局样式变量 */
:root {
    --primary-color: #1f7b46;
    --primary-light: #2ba05f;
    --primary-dark: #1a6439;
    --secondary-color: #f8f9fa;
    --text-color: #333333;
    --text-light: #666666;
    --background-color: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 15px 35px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--background-color);
    overflow-x: hidden;
}

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

.btn-primary {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(31, 123, 70, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(31, 123, 70, 0.5);
}

.btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(31, 123, 70, 0.3);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-color);
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
}

/* 页头样式 */
.site-header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
}

.main-nav {
    display: flex;
    align-items: center;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    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-color: var(--primary-color);
    transition: var(--transition);
}

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

.header-actions {
    display: flex;
    align-items: center;
}

.header-actions .btn-primary {
    margin-left: 20px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    font-size: 24px;
}

/* 移动端导航菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: white;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    z-index: 1100;
    transition: var(--transition);
    padding: 30px;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    font-size: 24px;
}

.mobile-nav-links {
    list-style: none;
    margin-top: 40px;
}

.mobile-nav-links li {
    margin-bottom: 20px;
}

.mobile-nav-links a {
    display: block;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 10px 0;
    transition: var(--transition);
}

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

.mobile-dropdown-menu {
    margin-left: 20px;
    margin-top: 10px;
    display: none;
}

.mobile-dropdown-menu.active {
    display: block;
}

.mobile-dropdown-menu li {
    margin-bottom: 10px;
}

/* 英雄区样式 */
.hero-section {
    padding: 100px 0;
    background-color: var(--secondary-color);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-tag {
    display: inline-block;
    padding: 8px 16px;
    background-color: rgba(31, 123, 70, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-text h1 {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-color);
}

.hero-text p {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 20px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-start;
    margin-left: 150px;
}

/* 完全重写的响应式样式 */

/* 基本响应式设置 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .hero-image {
        margin-left: 0 !important;
        justify-content: center;
        width: 100%;
        margin-top: 30px;
    }
    
    .certificate-card {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }
}

/* 平板和小型平板 */
@media (max-width: 768px) {
    .hero-section {
        overflow-x: hidden;
        padding: 60px 0;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .hero-text h1 {
        font-size: 40px;
    }
    
    .hero-image {
        width: 100%;
        max-width: 100%;
    }
    
    .certificate-card {
        width: 100%;
        max-width: 100%;
        padding: 20px;
    }
    
    .hero-cta {
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* 手机响应式样式 - 完全重写 */
@media (max-width: 600px) {
    /* 确保整个英雄区不会横向溢出 */
    .hero-section {
        overflow-x: hidden !important;
        padding: 40px 0;
    }
    
    /* 移除容器的内边距 */
    .container {
        padding: 0 !important;
        max-width: 100% !important;
    }
    
    /* 强制英雄内容垂直排列 */
    .hero-content {
        flex-direction: column !important;
        align-items: center !important;
        padding: 0 15px;
    }
    
    /* 确保英雄图片容器正确布局 */
    .hero-image {
        margin-left: 0 !important;
        justify-content: center !important;
        width: 100% !important;
        margin-top: 20px;
    }
    
    /* 完全响应式的证书卡片 */
    .certificate-card {
        width: 100% !important;
        max-width: 100% !important;
        padding: 15px !important;
        margin: 0 !important;
        box-sizing: border-box !important;
    }
    
    /* 调整证书头部布局 */
    .certificate-header {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 10px;
        margin-bottom: 20px;
    }
    
    /* 调整证书状态区域 */
    .cert-status {
        flex-direction: column !important;
        align-items: center !important;
        gap: 10px;
        text-align: center;
    }
    
    .cert-status span {
        margin-left: 0 !important;
    }
    
    /* 调整证书详情布局 */
    .cert-details {
        gap: 12px;
    }
    
    .detail-item {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 5px;
        padding: 8px 0;
    }
    
    /* 调整字体大小 */
    .cert-logo {
        font-size: 20px;
    }
    
    .security-badge {
        padding: 4px 10px;
        font-size: 12px;
    }
    
    .cert-status svg {
        width: 32px;
        height: 32px;
    }
    
    .detail-label, .detail-value {
        font-size: 14px;
    }
    
    .certificate-footer {
        font-size: 12px;
    }
}

.certificate-card {
    width: 350px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--box-shadow);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.certificate-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.cert-logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.security-badge {
    background-color: rgba(31, 123, 70, 0.1);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.cert-status {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.cert-status span {
    margin-left: 15px;
    font-weight: 600;
    color: var(--primary-color);
}

.cert-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-label {
    font-weight: 500;
    color: var(--text-light);
}

.detail-value {
    font-weight: 600;
    color: var(--text-color);
}

.certificate-footer {
    margin-top: 25px;
    text-align: center;
    font-size: 14px;
    color: var(--text-light);
    font-style: italic;
}

.hero-bg-pattern {
    position: absolute;
    top: 0;
    right: 0;
    width: 70%;
    height: 100%;
    background-image: url("../images/pattern.svg");
    background-repeat: no-repeat;
    background-position: center right;
    background-size: contain;
    opacity: 0.05;
    z-index: 0;
}

/* 价值主张样式 */
.value-proposition {
    padding: 100px 0;
    background-color: white;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-card {
    background-color: var(--secondary-color);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.value-icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.value-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-color);
}

.value-card p {
    color: var(--text-light);
    font-size: 16px;
}

/* 产品系列样式 */
.product-section {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.products-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    transform: scale(0.95);
    transform-origin: center;
}

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

.product-card.featured {
    border: 2px solid var(--primary-color);
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    z-index: 1;
}

.product-header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px;
    text-align: center;
}

.product-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.product-price {
    margin: 8px 0;
}

.price-amount {
    font-size: 24px;
    font-weight: 700;
    color: white;
}

.price-period {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-left: 3px;
    font-weight: 400;
}

.product-level {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 12px;
}

.product-body {
    padding: 20px;
}

.encryption-level {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.encryption-level span {
    margin-left: 10px;
    font-weight: 600;
    color: var(--primary-color);
}

.product-body p {
    text-align: center;
    margin-bottom: 25px;
    color: var(--text-light);
}

.product-features {
    list-style: none;
}

.product-features li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    color: var(--text-color);
}

.product-features li svg {
    margin-right: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}

.product-footer {
    padding: 0 20px 20px;
    text-align: center;
}

.product-footer .btn-primary {
    width: 100%;
    margin-bottom: 10px;
    padding: 10px 20px;
    font-size: 14px;
}

.product-detail-link {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.product-detail-link:hover {
    text-decoration: underline;
}

/* 安全特性样式 */
.security-features {
    padding: 100px 0;
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-box {
    background-color: var(--secondary-color);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.feature-icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.feature-box h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-color);
}

.feature-box p {
    color: var(--text-light);
    font-size: 16px;
}

/* 客户案例样式 */
.case-studies {
    padding: 100px 0;
    background-color: var(--secondary-color);
}

.testimonials-slider {
    position: relative;
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

.testimonial-slide {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.testimonial-slide.active {
    display: block;
    opacity: 1;
}

.testimonial-content {
    background-color: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--box-shadow);
    text-align: center;
    position: relative;
}

.quote-icon {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.1;
}

.testimonial-content p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--text-color);
    position: relative;
    z-index: 1;
}

.customer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.customer-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-color);
}

.customer-company {
    color: var(--text-light);
    font-size: 16px;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.prev-slide, .next-slide {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: white;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.prev-slide:hover, .next-slide:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(31, 123, 70, 0.3);
}

/* FAQ部分样式 */
.faq-section {
    padding: 100px 0;
    background-color: white;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    background-color: var(--secondary-color);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    cursor: pointer;
    transition: var(--transition);
    background-color: white;
    border: 1px solid var(--border-color);
    position: relative;
}

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

.faq-question span {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition);
}

.faq-icon {
    transition: transform 0.3s ease;
}

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

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

.faq-answer-inner {
    padding: 0 30px 30px;
}

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

.faq-answer p {
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.8;
}

.faq-answer ul {
    margin-left: 20px;
}

.faq-answer li {
    margin-bottom: 10px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 联系表单样式 */
.contact-section {
    padding: 100px 0;
    background-color: var(--secondary-color);
}

.contact-content {
    display: flex;
    justify-content: space-between;
    gap: 50px;
}

.contact-info {
    flex: 1;
    max-width: 450px;
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-color);
}

.contact-info p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-details .detail-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-form {
    flex: 1;
    max-width: 600px;
}

.contact-form form {
    background-color: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(31, 123, 70, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group .btn-primary {
    width: 100%;
    padding: 15px;
    font-size: 18px;
}

/* 页脚样式 */
.site-footer {
    background-color: var(--text-color);
    color: white;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-column h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
}

.footer-description {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
    font-size: 16px;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.7);
}

.partner-logos {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.partner-logo {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.partner-logo:hover {
    background-color: rgba(31, 123, 70, 0.2);
    color: white;
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    transition: var(--transition);
}

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

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    box-shadow: 0 4px 15px rgba(31, 123, 70, 0.4);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(31, 123, 70, 0.5);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-text h1 {
        font-size: 48px;
    }
    
    .certificate-card {
        width: 300px;
    }
}

@media (max-width: 992px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-image {
        margin-top: 50px;
        justify-content: center;
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .contact-info {
        max-width: 100%;
        text-align: center;
    }
    
    .contact-details {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 80px 0;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }
    
    .section-header h2 {
        font-size: 30px;
    }
    
    .section-header p {
        font-size: 16px;
    }
    
    .certificate-card {
        width: 280px;
        padding: 20px;
    }
    
    .value-proposition,
    .product-section,
    .security-features,
    .case-studies,
    .faq-section,
    .contact-section {
        padding: 80px 0;
    }
    
    .testimonial-content {
        padding: 30px;
    }
    
    .faq-question span {
        font-size: 16px;
    }
    
    .footer-content {
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .header-actions .btn-primary {
        display: none;
    }
    
    .hero-text h1 {
        font-size: 28px;
    }
    
    .hero-text p {
        font-size: 16px;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 15px;
    }
    
    .certificate-card {
        width: 100%;
        max-width: 280px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .value-proposition,
    .product-section,
    .security-features,
    .case-studies,
    .faq-section,
    .contact-section {
        padding: 60px 0;
    }
    
    .products-container {
        gap: 20px;
    }
    
    .product-card {
        margin: 0 10px;
    }
    
    .testimonial-content {
        padding: 20px;
    }
    
    .testimonial-content p {
        font-size: 16px;
    }
    
    .contact-form form {
        padding: 25px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}