body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background-color: #fff;
    color: #1f2937;
    line-height: 1.5;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Navbar ========== */
.navbar {
    background: white;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.logo {
    font-size: 22px;
    font-weight: 700;
    color: #1f2937;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}
.logo-icon {
    font-size: 24px;
    color: #2563eb;
}
.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
    flex-wrap: wrap;
}
.nav-links a {
    text-decoration: none;
    color: #4b5563;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover {
    color: #2563eb;
}
.quote-btn {
    background: #2563eb;
    color: white !important;
    padding: 8px 20px;
    border-radius: 40px;
}
.quote-btn:hover {
    background: #1d4ed8;
}
.menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}
@media (max-width: 900px) {
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 16px;
        margin-top: 16px;
        align-items: flex-start;
    }
    .nav-links.show {
        display: flex;
    }
    .menu-toggle {
        display: block;
    }
}

/* ========== Hero Carousel ========== */
.section-home-carousel {
    width: 100%;
    position: relative;
}
.layui-carousel {
    background-color: #ffffff;
}
.carousel-slide-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.carousel-slide-content h1 {
    font-size: 48px;
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.carousel-slide-content p {
    font-size: 18px;
    margin-bottom: 28px;
    opacity: 0.92;
    line-height: 1.5;
}
.slide-btn {
    background: #2563eb;
    color: white;
    padding: 12px 32px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border: none;
    cursor: pointer;
    font-size: 16px;
}
.slide-btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.15);
}
@media (max-width: 768px) {
    .carousel-slide-content h1 {
        font-size: 28px;
        margin-bottom: 12px;
    }
    .carousel-slide-content p {
        font-size: 15px;
        margin-bottom: 20px;
        padding: 0 10px;
    }
    .slide-btn {
        padding: 8px 24px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .carousel-slide-content h1 {
        font-size: 24px;
    }
    .carousel-slide-content p {
        font-size: 13px;
    }
}

.carousel-slide-content {
    position: relative;
    z-index: 3;
}

.slide-btn {
    pointer-events: auto;
    position: relative;
    z-index: 4;
}


@media (min-width: 1200px) {
    .carousel-slide-content h1 {
        font-size: 52px;
    }
    .carousel-slide-content p {
        font-size: 20px;
    }
}
/* General Sections */
.section {
    padding: 60px 0;
    border-bottom: 1px solid #e5e7eb;
}
.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1f2937;
}
.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #6b7280;
    max-width: 700px;
    margin: 0 auto 48px;
}

/* Two columns (text + video) */
.two-columns {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}
.col-text {
    flex: 1;
}
.col-text h2 {
    font-size: 28px;
    margin-bottom: 20px;
}
.feature-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 24px 0;
}
.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
}
.feature-item i {
    color: #2563eb;
    font-size: 20px;
}
.col-video {
    flex: 1;
    background: #f3f4f6;
    border-radius: 24px;
    overflow: hidden;
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.video-placeholder {
    text-align: center;
    color: #6b7280;
}
.video-placeholder i {
    font-size: 64px;
    margin-bottom: 12px;
}

/* Product grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 32px;
}
.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.2s;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}
.product-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}
.product-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.product-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}
.product-desc {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 16px;
}
.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}
.tag {
    background: #eef2ff;
    color: #1e40af;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 30px;
}
.quote-link {
    background: #2563eb;
    color: white;
    text-align: center;
    padding: 10px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 14px;
    margin-top: auto;
}

/* 面包屑 */
.breadcrumb {
    padding: 24px 0 16px;
    font-size: 14px;
    color: #6b7280;
}
.breadcrumb a {
    color: #4b5563;
    text-decoration: none;
}
.breadcrumb a:hover {
    text-decoration: underline;
}
.breadcrumb span {
    margin: 0 6px;
}
/* 分类标签 - 静态样式无交互 */
.category-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}
.cat-btn {
    background: #f3f4f6;
    border: none;
    padding: 8px 20px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
    color: #4b5563;
    cursor: default;
    transition: all 0.2s;
    pointer-events: none;  /* 去除所有点击交互，仅做视觉展示 */
}
.cat-btn.active {
    background: #2563eb;
    color: white;
}
/* 产品网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}
.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}
.product-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    background: #f9fafb;
    display: block;
}
.product-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.product-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}
.product-desc {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 16px;
    line-height: 1.5;
}


/* 主区域左右分栏 */
.product-main {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 48px;
}
.product-gallery {
    flex: 1;
    min-width: 260px;
}
.product-info {
    flex: 1;
    min-width: 260px;
}
.main-image {
    width: 100%;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    margin-bottom: 16px;
}
.main-image img {
    width: 100%;
    display: block;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}
.thumb-list {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.thumb-list img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: 0.2s;
}
.thumb-list img:hover {
    border-color: #2563eb;
}

.product-name {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}
.product-desc {
    font-size: 16px;
    color: #4b5563;
    margin-bottom: 20px;
    line-height: 1.5;
}
.custom-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}
.tag {
    background: #eef2ff;
    color: #1e40af;
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 30px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.key-info {
    background: #f3f4f6;
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: space-between;
}
.key-item {
    flex: 1;
}
.key-label {
    font-size: 13px;
    color: #6b7280;
    margin-bottom: 4px;
}
.key-value {
    font-weight: 600;
    font-size: 18px;
}
.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
}
.btn-primary {
    background: #2563eb;
    color: white;
    padding: 12px 28px;
    border-radius: 40px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: 0.2s;
    border: none;
    cursor: pointer;
    font-size: 16px;
}
.btn-primary:hover {
    background: #1d4ed8;
}
.btn-secondary {
    background: white;
    border: 1px solid #d1d5db;
    color: #1f2937;
    padding: 12px 28px;
    border-radius: 40px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: 0.2s;
}
.btn-secondary:hover {
    background: #f3f4f6;
}
.trust-badge {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #4b5563;
    border-top: 1px solid #e5e7eb;
    padding-top: 20px;
}

/* 标签页 (Tabs) */
.tabs-section {
    margin: 48px 0;
    background: white;
    border-radius: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    overflow: hidden;
}
.tabs-header {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid #e5e7eb;
    background: #fff;
}
.tab-btn {
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 500;
    background: none;
    border: none;
    cursor: pointer;
    color: #6b7280;
    transition: 0.2s;
}
.tab-btn.active {
    color: #2563eb;
    border-bottom: 2px solid #2563eb;
    margin-bottom: -1px;
}
.tab-content {
    display: none;
    padding: 28px 24px;
}
.tab-content.active {
    display: block;
}
.spec-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px,1fr));
    gap: 16px;
}
.spec-item {
    border-bottom: 1px dashed #e5e7eb;
    padding: 8px 0;
}
.spec-title {
    font-weight: 600;
}
.inquiry-form {
    background: #f9fafb;
    border-radius: 20px;
    padding: 32px;
    margin: 40px 0;
}
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.form-field.full-width {
    grid-column: span 2;
}
input, textarea, select {
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 12px;
    font-family: inherit;
    font-size: 14px;
}
label {
    font-weight: 500;
    font-size: 14px;
}
.related-products {
    margin: 48px 0;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px,1fr));
    gap: 24px;
    margin-top: 24px;
}
.related-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: 0.2s;
    text-decoration: none;
    color: inherit;
}
.related-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}
.related-card .info {
    padding: 12px;
}
.related-card .name {
    font-weight: 600;
    margin-bottom: 6px;
}
.related-card .btn-small {
    margin-top: 10px;
    font-size: 13px;
    display: inline-block;
    color: #2563eb;
}
/* 页面标题 */
.page-header {
    text-align: center;
    margin-bottom: 48px;
}
.page-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1f2937;
}
.page-subtitle {
    font-size: 18px;
    color: #6b7280;
    max-width: 700px;
    margin: 0 auto;
}
/* 文章网格 */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}
.article-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}
.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}
.article-image {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    background: #e5e7eb;
}
.article-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.article-category {
    display: inline-block;
    background: #eef2ff;
    color: #2563eb;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 30px;
    margin-bottom: 12px;
    width: fit-content;
}
.article-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
}
.article-excerpt {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 16px;
    line-height: 1.5;
}
.article-meta {
    font-size: 12px;
    color: #9ca3af;
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.read-more {
    color: #2563eb;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
/* 分页 - 静态无交互 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 40px 0 60px;
}
.page-btn {
    background: #f3f4f6;
    border: none;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 14px;
    cursor: default;
    transition: 0.2s;
    pointer-events: none;
}
.page-btn.active {
    background: #2563eb;
    color: white;
}
/* 侧边栏 */
.news-sidebar {
    margin-bottom: 48px;
}
.sidebar-box {
    background: #f9fafb;
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 24px;
}
.sidebar-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #2563eb;
    display: inline-block;
}
.popular-list {
    list-style: none;
}
.popular-list li {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e5e7eb;
}
.popular-list li a {
    text-decoration: none;
    color: #4b5563;
    font-size: 14px;
    transition: color 0.2s;
}
.popular-list li a:hover {
    color: #2563eb;
}
/* 页脚 */
footer {
    background: #1f2937;
    color: #9ca3af;
    padding: 40px 0;
    text-align: center;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.footer-links a {
    color: #9ca3af;
    text-decoration: none;
}
@media (max-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .page-title {
        font-size: 28px;
    }
    .sidebar-box {
        padding: 20px;
    }
}
.note-static {
    text-align: center;
    font-size: 12px;
    color: #9ca3af;
    margin-top: -20px;
    margin-bottom: 20px;
    padding-top: 12px;
    border-top: 1px solid #e5e7eb;
}



.article-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 48px;
    margin-bottom: 60px;
}
.article-main {
    flex: 2.5;
}
.article-header {
    margin-bottom: 32px;
}
.article-category {
    display: inline-block;
    background: #eef2ff;
    color: #2563eb;
    font-size: 13px;
    padding: 4px 14px;
    border-radius: 30px;
    margin-bottom: 16px;
}
.article-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e5e7eb;
}
.article-featured-image {
    width: 100%;
    border-radius: 24px;
    margin-bottom: 32px;
    background: #e5e7eb;
}
.article-content {
    font-size: 16px;
    color: #374151;
    line-height: 1.8;
}
.article-content h2 {
    font-size: 24px;
    margin: 32px 0 16px;
    color: #1f2937;
}
.article-content h3 {
    font-size: 20px;
    margin: 24px 0 12px;
    color: #1f2937;
}
.article-content p {
    margin-bottom: 20px;
}
.article-content ul, .article-content ol {
    margin: 16px 0 20px 24px;
}
.article-content li {
    margin-bottom: 8px;
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 32px 0;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}
.tag {
    background: #f3f4f6;
    color: #4b5563;
    font-size: 12px;
    padding: 6px 14px;
    border-radius: 30px;
}
.share-section {
    margin: 32px 0;
    padding: 20px 0;
    border-top: 1px solid #e5e7eb;
    border-bottom: 1px solid #e5e7eb;
}
.share-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}
.share-links {
    display: flex;
    gap: 16px;
}
.share-links a {
    color: #6b7280;
    font-size: 20px;
    transition: color 0.2s;
}
.share-links a:hover {
    color: #2563eb;
}
.author-box {
    background: #f9fafb;
    border-radius: 20px;
    padding: 24px;
    display: flex;
    gap: 20px;
    margin: 32px 0;
}
.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #e5e7eb;
}
.author-info h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}
.author-info p {
    font-size: 14px;
    color: #6b7280;
}
.related-section {
    margin-top: 48px;
}
.related-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 24px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.related-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.2s;
    text-decoration: none;
    color: inherit;
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}
.related-card img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}
.related-card-content {
    padding: 16px;
}
.related-card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}
.related-card-date {
    font-size: 12px;
    color: #9ca3af;
}
.article-sidebar {
    flex: 1;
}
.sidebar-box {
    background: #f9fafb;
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 24px;
}
.sidebar-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #2563eb;
    display: inline-block;
}
.popular-list {
    list-style: none;
}
.popular-list li {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e5e7eb;
}
.popular-list li a {
    text-decoration: none;
    color: #4b5563;
    font-size: 14px;
    transition: color 0.2s;
}
.popular-list li a:hover {
    color: #2563eb;
}



footer {
    background: #1f2937;
    color: #9ca3af;
    padding: 40px 0;
    margin-top: 60px;
    text-align: center;
}
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-field.full-width {
        grid-column: span 1;
    }
    .product-name {
        font-size: 24px;
    }
    .tab-btn {
        padding: 12px 16px;
        font-size: 14px;
    }
}

/* 底部页脚 */
footer {
    background: #1f2937;
    color: #9ca3af;
    padding: 32px 0;
    text-align: center;
    margin-top: 20px;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    font-size: 13px;
}
.footer-links a:hover {
    text-decoration: underline;
}
@media (max-width: 768px) {
    .products-grid {
        gap: 20px;
    }
}


/* Sustainability */
.sustainability-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}
.sustainability-text {
    flex: 1;
}
.sustainability-list {
    list-style: none;
    margin: 20px 0;
}
.sustainability-list li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sustainability-list li::before {
    content: "✓";
    color: #2563eb;
    font-weight: bold;
}
.fsc-note {
    background: #eef2ff;
    padding: 16px;
    border-radius: 16px;
    font-size: 14px;
    color: #1e40af;
}
.sustainability-image {
    flex: 1;
    background: #f3f4f6;
    border-radius: 20px;
    padding: 16px;
    text-align: center;
}
.sustainability-image img {
    max-width: 100%;
    border-radius: 12px;
}

/* Four advantages */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.advantage-item {
    text-align: center;
    padding: 24px;
    background: #f9fafb;
    border-radius: 20px;
}
.advantage-icon {
    font-size: 44px;
    margin-bottom: 12px;
}
.advantage-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}
@media (max-width: 900px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
}

/* Contact section */
.contact-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    background: #f9fafb;
    border-radius: 32px;
    padding: 48px;
}
.contact-info {
    flex: 1;
}
.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
}
.contact-detail p {
    margin: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}
.social-links {
    display: flex;
    gap: 24px;
    margin-top: 24px;
}
.social-links a {
    color: #4b5563;
    font-size: 24px;
    transition: color 0.2s;
}
.social-links a:hover {
    color: #2563eb;
}
.contact-form {
    flex: 1;
}
.form-group {
    margin-bottom: 16px;
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 12px;
    font-family: inherit;
}
.submit-btn {
    background: #2563eb;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
}

/* Footer */
footer {
    background: #1f2937;
    color: #9ca3af;
    padding: 40px 0;
    text-align: center;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.footer-links a {
    color: #9ca3af;
    text-decoration: none;
}
@media (max-width: 768px) {
    .section { padding: 40px 0; }
    .contact-wrapper { padding: 24px; }
}