:root {
    --primary: #4A5DFF;
    --primary-dark: #2A3FCC;
    --primary-light: #E8EBFF;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-light: #999999;
    --bg-gray: #F5F7FA;
    --border-gray: #E5E9ED;
    --success: #52C41A;
    --warning: #FAAD14;
    --error: #FF4D4F;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #fff;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

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

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

.btn-block {
    width: 100%;
}

.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

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

.section-subtitle {
    font-size: 18px;
    color: var(--text-gray);
}

.section-header-left {
    text-align: left;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* logo图片 */
.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.logo-image {
    height: 62px;
    object-fit: contain;
    flex-shrink: 0;
}

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

.logo-sub-text {
    font-size: 12px;
    color: #888;
    white-space: nowrap;
}



.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.logo-sub {
    font-size: 12px;
    color: var(--text-gray);
}

.nav-list {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    transition: all 0.3s;
}

.banner {
    position: relative;
    margin-top: 80px;
    height: 500px;
    overflow: hidden;
}

.banner-slides {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.banner-slide.active {
    opacity: 1;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0.1) 0%, rgba(0,68,153,0.7) 100%);
    z-index: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    height: 500px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #fff;
}

.banner-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease;
}

.banner-subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.banner .btn {
    animation: fadeInUp 0.8s ease 0.4s both;
}

.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
}

.indicator.active {
    background-color: #fff;
    transform: scale(1.2);
}

.banner-arrows {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    pointer-events: none;
    z-index: 10;
}

.arrow {
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    pointer-events: auto;
    transition: all 0.3s;
}

.arrow:hover {
    background-color: var(--primary);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.services {
    background-color: var(--bg-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-light) 0%, #fff 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
    color: var(--primary);
}

.service-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.service-desc {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.8;
}

.about {
    background-color: #fff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content .section-header {
    margin-bottom: 30px;
}

.about-text {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border-gray);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--primary);
    font-family: "DIN Alternate", "Roboto", Arial, sans-serif;
}

.stat-label {
    font-size: 14px;
    color: var(--text-gray);
}

.about-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.culture {
    background-color: var(--bg-gray);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.culture-card {
    background-color: #fff;
    padding: 40px 24px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.culture-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.culture-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: var(--primary);
}

.culture-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

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

.timeline-section {
    background-color: #fff;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--border-gray);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 20px 40px;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-year {
    position: absolute;
    top: 20px;
    width: 80px;
    height: 32px;
    background-color: var(--primary);
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.timeline-item:nth-child(odd) .timeline-year {
    right: -40px;
}

.timeline-item:nth-child(even) .timeline-year {
    left: -40px;
}

.timeline-content {
    padding-top: 50px;
}

.timeline-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

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

.products {
    background-color: var(--bg-gray);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.product-card {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s;
    position: relative;
}

.product-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 16px;
    background-color: var(--primary);
    color: #fff;
    font-size: 12px;
    border-radius: 12px;
}

.main-product {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.main-product .product-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.product-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 24px;
}

.product-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.product-desc {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 24px;
}

.product-features {
    list-style: none;
    margin-bottom: 30px;
}

.product-features li {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-features li i {
    color: var(--success);
    font-size: 12px;
}

.advantages {
    background-color: #fff;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card {
    padding: 40px 30px;
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s;
}

.advantage-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.1);
}

.advantage-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-light);
    font-family: "DIN Alternate", "Roboto", Arial, sans-serif;
    margin-bottom: 16px;
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

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

.news {
    background-color: var(--bg-gray);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-category {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 12px;
    background-color: var(--primary);
    color: #fff;
    font-size: 12px;
    border-radius: 4px;
}

.news-content {
    padding: 24px;
}

.news-date {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 12px;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-desc {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    font-size: 14px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.news-link:hover {
    color: var(--primary-dark);
}

.news-more {
    text-align: center;
    margin-top: 40px;
}

.partners {
    background-color: #fff;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    transition: all 0.3s;
}

.partner-item:hover {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.partner-item i {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 12px;
}

.partner-item img {
    max-width: 100%;
    max-height: 80px;
    object-fit: contain;
}

.partner-item span {
    font-size: 14px;
    color: var(--text-gray);
    text-align: center;
}

.contact {
    background-color: var(--bg-gray);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-simple-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-more {
    grid-column: 1 / -1;
    text-align: center;
    margin-top: 30px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

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

.contact-form-wrapper {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.contact-form h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 30px;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 14px;
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    transition: all 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.map-section {
    padding: 0;
}

.map-wrapper {
    position: relative;
    height: 400px;
}

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0.95) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.map-container {
    width: 100%;
    height: 100%;
}

.footer {
    background-color: var(--text-dark);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    font-size: 20px;
}

.footer-logo .logo-name {
    font-size: 18px;
    color: #fff;
}

.footer-about p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #fff;
    transition: all 0.3s;
}

.footer-social a:hover {
    background-color: var(--primary);
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #fff;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s;
}

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

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact li {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact li i {
    color: var(--primary);
    width: 16px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s;
}

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

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

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

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

.online-consult {
    position: fixed;
    bottom: 100px;
    right: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    z-index: 999;
}

.consult-icon {
    width: 56px;
    height: 56px;
    background-color: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
    transition: all 0.3s;
}

.online-consult:hover .consult-icon {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

.online-consult span {
    font-size: 12px;
    color: var(--primary);
    background-color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 992px) {
    .nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: #fff;
        padding: 20px;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: 16px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .banner {
        height: 400px;
    }

    .banner-content {
        height: 400px;
    }

    .banner-title {
        font-size: 36px;
    }

    .banner-subtitle {
        font-size: 18px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .main-product {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 60px;
        padding-right: 20px;
        text-align: left;
    }

    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-item:nth-child(odd) .timeline-year,
    .timeline-item:nth-child(even) .timeline-year {
        left: -20px;
        right: auto;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .culture-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .partners-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .banner {
        height: 300px;
        margin-top: 70px;
    }

    .banner-content {
        height: 300px;
    }

    .banner-title {
        font-size: 28px;
    }

    .banner-subtitle {
        font-size: 16px;
    }

    .about-stats {
        flex-direction: column;
        gap: 20px;
    }

    .stat-number {
        font-size: 32px;
    }

    .online-consult {
        bottom: 80px;
        right: 20px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 16px;
    }

    .header-content {
        height: 70px;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .logo-name {
        font-size: 16px;
    }

    .logo-sub {
        font-size: 10px;
    }

    .banner {
        height: 250px;
        margin-top: 70px;
    }

    .banner-content {
        height: 250px;
    }

    .banner-title {
        font-size: 24px;
    }

    .banner-subtitle {
        font-size: 14px;
    }

    .banner .btn {
        padding: 10px 24px;
        font-size: 14px;
    }

    .arrow {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .section-title {
        font-size: 24px;
    }

    .section {
        padding: 50px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .service-card,
    .culture-card,
    .advantage-card {
        padding: 30px 20px;
    }

    .product-card {
        padding: 30px 20px;
    }

    .main-product .product-features {
        grid-template-columns: 1fr;
    }

    .contact-form-wrapper {
        padding: 30px 20px;
    }

    .footer {
        padding: 40px 0 20px;
    }
}