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

:root {
    --primary-color: #0066cc;
    --secondary-color: #cc0000;
    --dark-color: #1a1a2e;
    --gray-color: #333333;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-color);
    background-color: var(--white);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 30px;
}

.header {
    background-color: var(--dark-color);
    color: var(--white);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    background: rgba(26, 26, 46, 0.95);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--white);
    gap: 15px;
}

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 28px;
    font-weight: bold;
    color: var(--white);
}

.company-name {
    font-size: 24px;
    font-weight: 600;
    color: var(--white);
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

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

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

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

.nav-item-has-children {
    position: relative;
}

.nav-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: var(--white);
    list-style: none;
    padding: 10px 0;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.nav-item-has-children:hover .nav-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-submenu li {
    padding: 0;
}

.nav-submenu a {
    display: block;
    padding: 12px 20px;
    color: var(--gray-color);
    text-decoration: none;
    font-weight: 400;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-submenu a:hover {
    background-color: var(--primary-color);
    color: var(--white);
    padding-left: 25px;
}

.nav-submenu a::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--white);
    transition: var(--transition);
}

.hero {
    height: 85vh;
    background: linear-gradient(135deg, var(--dark-color) 0%, #2c3e50 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    margin-top: 0;
    padding-top: 90px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../product/pics/20170520/1495269660.jpg') center/cover no-repeat;
    opacity: 0.2;
    animation: zoomIn 25s ease-in-out infinite alternate;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 102, 204, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(204, 0, 0, 0.1) 0%, transparent 50%);
    animation: pulse 5s ease-in-out infinite;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.85) 0%, rgba(44, 62, 80, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    margin-bottom: 25px;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.4);
    animation: fadeInUp 1s ease;
    letter-spacing: 2px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.3s backwards;
    font-weight: 300;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 25px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.6s backwards;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 18px 50px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0088ff 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0052a3 0%, var(--primary-color) 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 102, 204, 0.5);
}

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

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--dark-color);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

section {
    padding: 72px 0;
    scroll-margin-top: 100px;
}

section:first-of-type {
    padding-top: 0;
}

.section-header {
    text-align: center;
    margin-bottom: 52px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 20px;
    letter-spacing: 1px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 20px;
    color: #666;
    margin-bottom: 30px;
    font-weight: 400;
    line-height: 1.6;
}

.section-line {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 25px auto 0;
    border-radius: 2px;
}

.products {
    background: linear-gradient(180deg, var(--white) 0%, #f8f9fa 100%);
    padding: 80px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 35px;
}

.product-card {
    background-color: var(--white);
    border-radius: 15px;
    padding: 0;
    text-align: center;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16);
    border-color: var(--primary-color);
}

.product-image-wrapper {
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.product-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-content {
    padding: 35px 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-icon {
    width: 75px;
    height: 75px;
    margin: 0 auto 25px;
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 136, 255, 0.05) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.product-card:hover .product-icon {
    transform: rotateY(360deg);
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.2) 0%, rgba(0, 136, 255, 0.1) 100%);
}

.product-icon svg {
    width: 60%;
    height: 60%;
}

.product-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 18px;
    position: relative;
}

.product-desc {
    font-size: 16px;
    color: #666;
    margin-bottom: 25px;
    line-height: 1.7;
    flex: 1;
}

.product-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    font-size: 15px;
}

.product-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.product-link::after {
    content: '→';
    transition: var(--transition);
}

.product-link:hover::after {
    transform: translateX(3px);
}

.product-list {
    list-style: none;
    padding: 0;
    margin: 0 0 25px;
    text-align: left;
}

.product-list li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: #666;
    font-size: 15px;
    transition: var(--transition);
}

.product-list li:hover {
    color: var(--primary-color);
    padding-left: 30px;
}

.product-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 18px;
}

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

.product-list a:hover {
    color: var(--secondary-color);
    padding-left: 8px;
    background: linear-gradient(90deg, rgba(0, 102, 204, 0.05) 0%, transparent 100%);
}

.product-detail {
    background-color: var(--light-gray);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.product-detail-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.product-detail-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: #f5f5f5;
}

.product-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-detail-info {
    padding: 30px;
}

.product-detail-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.product-detail-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-detail-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-detail-features li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: #555;
    font-size: 14px;
}

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

.product-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--white);
    border-radius: 10px;
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    border: none;
    background-color: var(--light-gray);
    border-radius: 50%;
    font-size: 24px;
    color: var(--dark-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10;
}

.modal-close:hover {
    background-color: var(--secondary-color);
    color: var(--white);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.modal-product-image {
    width: 100%;
    height: 100%;
    min-height: 300px;
    background-color: #f5f5f5;
    overflow: hidden;
}

.modal-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.modal-product-info {
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.modal-product-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 20px;
    line-height: 1.3;
}

.modal-product-desc {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 25px;
}

.modal-product-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.modal-product-features li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    color: #555;
    font-size: 15px;
    border-bottom: 1px solid var(--border-color);
}

.modal-product-features li:last-child {
    border-bottom: none;
}

.modal-product-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 18px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -45%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

@keyframes zoomIn {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.1);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

.brands {
    background: linear-gradient(180deg, var(--light-gray) 0%, #e8f4f8 100%);
    padding: 80px 0;
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 35px;
}

.brand-item {
    background-color: var(--white);
    border-radius: 15px;
    padding: 50px 30px;
    text-align: center;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.brand-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.brand-item:hover::before {
    transform: scaleX(1);
}

.brand-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.brand-logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 15px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 136, 255, 0.05) 100%);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    transition: var(--transition);
}

.brand-item:hover .brand-logo {
    transform: rotateY(360deg);
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.2) 0%, rgba(0, 136, 255, 0.1) 100%);
}

.brand-name {
    font-size: 15px;
    color: #666;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.brand-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0;
    text-align: left;
}

.brand-list li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: #666;
    font-size: 14px;
    transition: var(--transition);
}

.brand-list li:hover {
    color: var(--primary-color);
    padding-left: 25px;
}

.brand-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 16px;
}

.solutions {
    background: linear-gradient(180deg, var(--white) 0%, #f0f4f8 100%);
    padding: 80px 0;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 35px;
}

.solution-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0088ff 100%);
    border-radius: 15px;
    padding: 0;
    text-align: center;
    color: var(--white);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--white), rgba(255, 255, 255, 0.5), var(--white));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.solution-card:hover::before {
    transform: scaleX(1);
}

.solution-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 15px 40px rgba(0, 102, 204, 0.3);
    background: linear-gradient(135deg, #0052a3 0%, var(--primary-color) 100%);
}

.solution-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.solution-content {
    padding: 35px 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.solution-icon {
    width: 75px;
    height: 75px;
    margin: 0 auto 25px;
    color: var(--white);
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.solution-card:hover .solution-icon {
    transform: rotateY(360deg);
    background: rgba(255, 255, 255, 0.25);
}

.solution-icon svg {
    width: 55%;
    height: 55%;
}

.solution-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.solution-desc {
    font-size: 16px;
    opacity: 0.95;
    line-height: 1.7;
    margin-bottom: 25px;
}

.solution-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0;
    text-align: left;
}

.solution-list li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    opacity: 0.9;
    font-size: 15px;
    transition: var(--transition);
}

.solution-list li:hover {
    opacity: 1;
    padding-left: 30px;
}

.solution-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--white);
    font-weight: bold;
    font-size: 14px;
}

.about {
    background: linear-gradient(180deg, var(--light-gray) 0%, #e8f4f8 100%);
    padding: 100px 0;
}

.about-content {
    max-width: 1120px;
    margin: 0 auto;
}

.about-text {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
}

.about-description {
    font-size: 17px;
    line-height: 1.9;
    color: #555;
    margin-bottom: 25px;
}

.about-section {
    margin-bottom: 40px;
    padding: 30px;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

.about-section:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-hover);
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-section-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--border-color);
    position: relative;
}

.about-section-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.about-list li {
    padding: 12px 0;
    padding-left: 30px;
    position: relative;
    color: #555;
    font-size: 16px;
    line-height: 1.7;
    transition: var(--transition);
}

.about-list li:hover {
    color: var(--primary-color);
    padding-left: 35px;
}

.about-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

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

.feature-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 10px;
    color: var(--primary-color);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.feature-text p {
    font-size: 14px;
    color: #666;
}

.about-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.news {
    background: linear-gradient(180deg, var(--white) 0%, #f8f9fa 100%);
    padding: 80px 0;
}

.news-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.news-tab {
    padding: 15px 40px;
    background-color: var(--light-gray);
    border: 2px solid var(--border-color);
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    color: #666;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.news-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.news-tab:hover::before {
    left: 100%;
}

.news-tab:hover {
    background-color: #e0e0e0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.news-tab.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0088ff 100%);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

.news-content {
    position: relative;
}

.news-tab-content {
    display: none;
}

.news-tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 35px;
}

.news-item {
    background-color: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.news-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.news-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: #f5f5f5;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.news-item:hover .news-image img {
    transform: scale(1.05);
}

.news-grid .news-content {
    padding: 22px 24px 26px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 14px;
    color: #999;
}

.news-category {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(0, 102, 204, 0.08);
    color: var(--primary-color);
    font-size: 13px;
}

.news-date {
    font-size: 13px;
    color: #999;
}

.news-title {
    font-size: 18px;
    margin-bottom: 10px;
}

.news-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 18px;
}

.news-card {
    background-color: var(--white);
    border-radius: 15px;
    padding: 35px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.news-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.news-card:hover::before {
    transform: scaleX(1);
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.news-date {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), #0088ff);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 8px;
    margin-bottom: 25px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.news-date .day {
    display: block;
    font-size: 28px;
    font-weight: 800;
    line-height: 1;
}

.news-date .month {
    display: block;
    font-size: 14px;
    margin-top: 5px;
    font-weight: 500;
}

.news-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 18px;
    line-height: 1.4;
}

.news-excerpt {
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 25px;
}

.news-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.news-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.contact {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052a3 100%);
    color: var(--white);
    padding: 80px 0;
}

.contact .section-title,
.contact .section-subtitle {
    color: var(--white);
}

.contact .section-subtitle {
    opacity: 0.95;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
    border-color: rgba(255, 255, 255, 0.3);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.contact-item:hover .contact-icon {
    transform: rotateY(360deg);
}

.contact-icon svg {
    width: 28px;
    height: 28px;
    color: var(--white);
}

.contact-details h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.contact-details p {
    font-size: 16px;
    opacity: 0.95;
    line-height: 1.6;
}

.contact-form {
    background-color: var(--white);
    border-radius: 15px;
    padding: 50px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px 20px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition);
    background-color: #f8f9fa;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
    background-color: var(--white);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-text {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.9;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.9;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-color);
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 15px;
    opacity: 0.9;
}

.footer-contact i {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 14px;
    opacity: 0.8;
}

.icp-info {
    font-size: 13px;
    opacity: 0.6;
    margin-top: 10px;
}

.footer-bottom a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-bottom a:hover {
    opacity: 1;
}

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