/* ===== 全局重置与基础样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2d7a3e;
    --primary-dark: #1e5a2c;
    --primary-light: #4a9d5e;
    --accent: #f5a623;
    --text-dark: #2c3e50;
    --text-gray: #6b7c8d;
    --text-light: #95a5a6;
    --bg-light: #f8faf9;
    --bg-white: #ffffff;
    --border: #e8ede9;
    --shadow: 0 2px 12px rgba(45, 122, 62, 0.08);
    --shadow-hover: 0 8px 24px rgba(45, 122, 62, 0.15);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-white);
    font-size: 16px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

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

/* ===== 顶部导航 ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-white);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    font-weight: bold;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: 0.5px;
}

.logo-sub {
    font-size: 11px;
    color: var(--text-light);
    letter-spacing: 1px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav a {
    padding: 8px 16px;
    font-size: 15px;
    color: var(--text-dark);
    border-radius: 6px;
    font-weight: 500;
}

.nav a:hover,
.nav a.active {
    color: var(--primary);
    background: rgba(45, 122, 62, 0.08);
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

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

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

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

/* ===== 首页 Hero 区域 ===== */
.hero {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 50%, #a5d6a7 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary-dark);
    line-height: 1.3;
    margin-bottom: 20px;
}

.hero-content h1 span {
    color: var(--accent);
}

.hero-content p {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.hero-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-hover);
}

.hero-card h3 {
    font-size: 20px;
    color: var(--primary-dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 16px;
    background: var(--bg-light);
    border-radius: var(--radius);
}

.stat-number {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 13px;
    color: var(--text-gray);
    margin-top: 4px;
}

/* ===== 通用区块标题 ===== */
.section {
    padding: 72px 0;
}

.section-alt {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(45, 122, 62, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 核心业务 ===== */
.business-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.business-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.business-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.business-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(45,122,62,0.1), rgba(74,157,94,0.15));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
}

.business-card h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.business-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* ===== 产品展示 ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.product-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    position: relative;
}

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    background: var(--accent);
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
}

.product-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-category {
    font-size: 12px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 6px;
}

.product-name {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.product-desc {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 16px;
    flex: 1;
    line-height: 1.6;
}

.product-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.product-price {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
}

.product-price span {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-light);
}

.product-btn {
    padding: 8px 16px;
    font-size: 13px;
}

/* ===== 为什么选择我们 ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-item {
    display: flex;
    gap: 20px;
}

.feature-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.feature-content h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.feature-content p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* ===== CTA 区域 ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: 64px 0;
    text-align: center;
    color: white;
}

.cta-section h2 {
    font-size: 32px;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 17px;
    opacity: 0.9;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn-primary {
    background: white;
    color: var(--primary-dark);
}

.cta-section .btn-primary:hover {
    background: var(--bg-light);
}

/* ===== 页脚 ===== */
.footer {
    background: #1a2e1f;
    color: rgba(255,255,255,0.7);
    padding: 56px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo-text {
    color: white;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 16px;
}

.footer h4 {
    color: white;
    font-size: 16px;
    margin-bottom: 20px;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

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

.footer-contact li {
    font-size: 14px;
    margin-bottom: 12px;
    display: flex;
    gap: 8px;
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-icp a {
    color: rgba(255,255,255,0.5);
}

.footer-icp a:hover {
    color: var(--primary-light);
}

/* ===== 面包屑 ===== */
.breadcrumb {
    background: var(--bg-light);
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.breadcrumb-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-gray);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.breadcrumb .current {
    color: var(--text-dark);
    font-weight: 500;
}

/* ===== 页面标题 ===== */
.page-header {
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    padding: 56px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 36px;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.page-header p {
    font-size: 17px;
    color: var(--text-gray);
}

/* ===== 产品筛选 ===== */
.product-filter {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 8px 20px;
    border: 1px solid var(--border);
    background: white;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-gray);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ===== 产品详情页 ===== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.product-detail-image {
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    border-radius: var(--radius-lg);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    position: sticky;
    top: 100px;
}

.product-detail-info h1 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.product-detail-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-gray);
}

.product-detail-price {
    background: var(--bg-light);
    padding: 24px;
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.price-label {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 4px;
}

.price-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
}

.price-value span {
    font-size: 16px;
    font-weight: 400;
}

.price-note {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 8px;
}

.product-specs {
    margin-bottom: 24px;
}

.product-specs h3 {
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.spec-table td:first-child {
    color: var(--text-gray);
    width: 120px;
    background: var(--bg-light);
}

.spec-table td:last-child {
    color: var(--text-dark);
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.quantity-label {
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 500;
}

.quantity-control {
    display: flex;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.quantity-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-light);
    cursor: pointer;
    font-size: 18px;
    color: var(--text-dark);
    transition: var(--transition);
}

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

.quantity-input {
    width: 60px;
    height: 40px;
    border: none;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    outline: none;
}

.action-buttons {
    display: flex;
    gap: 16px;
}

.action-buttons .btn {
    flex: 1;
}

/* ===== 产品详情描述 ===== */
.product-description {
    margin-top: 56px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.product-description h2 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.product-description p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 16px;
}

.product-description ul {
    margin-bottom: 16px;
}

.product-description li {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.9;
    padding-left: 24px;
    position: relative;
    margin-bottom: 8px;
}

.product-description li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

/* ===== 关于我们 ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-image {
    background: linear-gradient(135deg, #e8f5e9, #a5d6a7);
    border-radius: var(--radius-lg);
    height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
}

.about-content h2 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.about-content p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
}

.highlight-icon {
    width: 32px;
    height: 32px;
    background: rgba(45,122,62,0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 16px;
}

/* ===== 企业资质 ===== */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.cert-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.cert-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.cert-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.cert-card h3 {
    font-size: 17px;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.cert-card p {
    font-size: 13px;
    color: var(--text-gray);
}

/* ===== 联系我们 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}

.contact-info-card {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.contact-info-card h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.contact-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.contact-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow);
}

.contact-item h4 {
    font-size: 15px;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
}

.contact-form {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border);
}

.contact-form h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-group label .required {
    color: #e74c3c;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    color: var(--text-dark);
    transition: var(--transition);
    outline: none;
    font-family: inherit;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45,122,62,0.1);
}

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

/* ===== 支付页面 ===== */
.payment-container {
    max-width: 700px;
    margin: 0 auto;
}

.payment-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
}

.payment-header {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.payment-header h2 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.payment-header p {
    font-size: 14px;
    color: var(--text-gray);
}

.order-summary {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 28px;
}

.order-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.order-item:last-child {
    border-bottom: none;
}

.order-item-name {
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 500;
}

.order-item-price {
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 600;
}

.order-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    margin-top: 8px;
    border-top: 2px solid var(--border);
}

.order-total-label {
    font-size: 17px;
    color: var(--text-dark);
    font-weight: 600;
}

.order-total-value {
    font-size: 28px;
    color: var(--primary);
    font-weight: 800;
}

.payment-methods {
    margin-bottom: 28px;
}

.payment-methods h3 {
    font-size: 17px;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.payment-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border: 2px solid var(--primary);
    border-radius: var(--radius);
    background: rgba(45,122,62,0.03);
    cursor: pointer;
    transition: var(--transition);
}

.payment-method-icon {
    width: 40px;
    height: 40px;
    background: #1677ff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 14px;
}

.payment-method-info h4 {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.payment-method-info p {
    font-size: 13px;
    color: var(--text-gray);
}

.payment-method-check {
    margin-left: auto;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
}

.payment-notice {
    background: #fff8e6;
    border: 1px solid #ffe0a3;
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 24px;
    font-size: 13px;
    color: #8a6d3b;
    line-height: 1.7;
}

.payment-notice strong {
    display: block;
    margin-bottom: 4px;
}

/* ===== 支付成功页面 ===== */
.payment-success {
    text-align: center;
    padding: 40px 0;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 40px;
    margin: 0 auto 24px;
}

.payment-success h2 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.payment-success p {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 32px;
}

.success-details {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 32px;
    text-align: left;
}

.success-detail-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.success-detail-item:last-child {
    border-bottom: none;
}

.success-detail-label {
    color: var(--text-gray);
}

.success-detail-value {
    color: var(--text-dark);
    font-weight: 500;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .product-detail {
        grid-template-columns: 1fr;
    }
    .product-detail-image {
        position: static;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .cert-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    .hero-content h1 {
        font-size: 30px;
    }
    .section-title {
        font-size: 26px;
    }
    .business-grid {
        grid-template-columns: 1fr;
    }
    .product-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .hero-buttons {
        flex-direction: column;
    }
    .hero-buttons .btn {
        width: 100%;
    }
}