:root {
    --primary-color: #2ecc71;
    --secondary-color: #27ae60;
    --dark-color: #1e8449;
    --light-color: #ecf0f1;
    --accent-color: #e74c3c;
    --text-color: #34495e;
    --white: #ffffff;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--light-color);
}

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

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    box-shadow: var(--shadow);
}

.close-icon {
    position: absolute;
    top: 10px;
    left: 10px;
    transition: opacity 0.3s ease;
}

.close-icon {
    opacity: 0;
}

.menu-close-btn {
    display: none;
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1002;
}

.menu-close-btn svg {
    width: 24px;
    height: 24px;
    fill: var(--white);
}

.btn:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 3px;
    background: var(--primary-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-title p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}

/* Header */
.header {
    position: relative;
}

.header-top {
    background: var(--white);
    padding: 15px 0;
    box-shadow: var(--shadow);
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.logo {
    width: 100px;
    height: 100px;
    margin-right: 15px;
    transform: scale(1.5);
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.company-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-color);
}

.company-name span {
    color: var(--primary-color);
}

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

.hotline i {
    color: var(--primary-color);
    font-size: 24px;
    margin-right: 10px;
}

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

.hotline-text span:first-child {
    font-size: 14px;
    color: #7f8c8d;
}

.hotline-text span:last-child {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark-color);
}

.header-bottom {
    background: var(--dark-color);
    padding: 15px 0;
    transition: var(--transition);
    position: relative;
}

.header-bottom.fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }

    to {
        transform: translateY(0);
    }
}

.main-menu ul {
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
    list-style: none;
}

.main-menu li {
    position: relative;
    margin: 0 15px;
}

.main-menu li a {
    color: var(--white);
    font-weight: 600;
    padding: 10px 15px;
    transition: var(--transition);
    position: relative;
    text-decoration: none;
    display: block;
}

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

.main-menu li a:hover::before {
    width: 100%;
}

.main-menu li a:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
}

.mobile-menu-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

/* Mobile styles */
@media (max-width: 768px) {
    .header-top .container {
        justify-content: center;
    }

    .logo {
        /* transform: scale(2); */
        margin-right: 50px;
    }

    .hotline {
        display: none;
    }

    .header-bottom {
        padding: 25px 0;
    }

    .menu-close-btn {
        display: block;
    }

    .header-bottom .container {
        display: flex;
        justify-content: flex-end;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .main-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--dark-color);
        z-index: 99000;
        transition: var(--transition);
        padding: 80px 20px 20px;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
    }

    .main-menu.active {
        left: 0;
    }

    .main-menu ul {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-menu li {
        margin: 10px 0;
        width: 100%;
    }

    .main-menu li a {
        padding: 12px 0;
    }

    .main-menu li a::before {
        display: none;
    }

    .header-bottom.fixed .main-menu {
        top: 0;
    }
}

@media (max-width: 480px) {
    .company-name {
        font-size: 17px;
    }

    .logo {
        width: 50px;
        height: 50px;
        margin-right: 20px;
    }
}

/* Banner Slider */
.banner {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.banner-slide {
    height: 600px;
    position: relative;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
}

.banner-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.banner-slide-1 {
    background-image: url('../images/banner1.jpg');

}

.banner-slide-2 {
    background-image: url('../images/banner1.jpg');
}

.banner-content {
    position: relative;
    z-index: 1;
    color: var(--white);
    max-width: 800px;
    padding: 0 20px;
}

.banner-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.banner-content p {
    font-size: 20px;
    margin-bottom: 30px;
    animation: fadeInUp 1.2s ease;
}

.banner-content .btn {
    animation: fadeInUp 1.4s ease;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slick-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    /* transform: translateX(-50%); */
    display: flex;
}

.slick-dots li {
    margin: 0 5px;
}

.slick-dots li button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--white);
    background: transparent;
    color: transparent;
    cursor: pointer;
    transition: var(--transition);
}

.slick-dots li.slick-active button {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* About Section */
.about {
    background: var(--white);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-img {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.about-img:hover img {
    transform: scale(1.05);
}

.about-text {
    flex: 1;
}

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

.about-text p {
    margin-bottom: 15px;
    font-size: 16px;
}

.about-features {
    margin-top: 30px;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
}

.about-feature i {
    color: var(--primary-color);
    font-size: 20px;
    margin-right: 15px;
    margin-top: 5px;
}

/* Stats Section */
.stats {
    background: var(--dark-color);
    color: var(--white);
    padding: 80px 0;
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1476231682828-37e571bc172f?ixlib=rb-4.0.3&amp;ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&amp;auto=format&amp;fit=crop&amp;w=1374&amp;q=80') center/cover;
    opacity: 0.1;
    z-index: 0;
}

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

.stat-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
}

.stat-item:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.stat-number {
    font-size: 50px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    transition: var(--transition);
}

.stat-item:hover .stat-number {
    transform: scale(1.2);
}

.stat-text {
    font-size: 18px;
    font-weight: 600;
}

/* Services Section */
.services {
    background: var(--white);
}

.services-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(46, 204, 113, 0.1), rgba(46, 204, 113, 0.3));
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.service-card:hover::before {
    opacity: 1;
}

.service-img {
    height: 200px;
    overflow: hidden;
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

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

.service-content {
    padding: 25px;
}

.service-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 10px;
}

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

.service-card:hover .service-content h3::after {
    width: 100px;
}

.service-content p {
    margin-bottom: 15px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.service-link i {
    margin-left: 5px;
    transition: var(--transition);
}

.service-card:hover .service-link {
    color: var(--secondary-color);
}

.service-card:hover .service-link i {
    transform: translateX(5px);
}

/* Why Choose Us */
.why-choose {
    background: #f9f9f9;
}

.why-choose-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.why-choose-img {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.why-choose-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.why-choose-img:hover img {
    transform: scale(1.05);
}

.why-choose-reasons {
    flex: 1;
}

.reason-item {
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.reason-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.5s ease;
    z-index: -1;
}

.reason-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.reason-item:hover::before {
    width: 100%;
    opacity: 0.2;
}

.reason-title {
    font-size: 20px;
    color: var(--secondary-color);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.reason-title i {
    margin-right: 10px;
    color: var(--primary-color);
}

/* Working Principles */
.principles {
    background: var(--dark-color);
    color: var(--white);
    padding: 80px 0;
    position: relative;
}

.principles::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url(https://images.unsplash.com/photo-1476231682828-37e571bc172f?ixlib=rb-4.0.3&amp;ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&amp;auto=format&amp;fit=crop&amp;w=1374&amp;q=80) center / cover;
    opacity: 0.1;
    z-index: 0;
}

.principles-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.principle-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.principle-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--primary-color);
    transition: var(--transition);
    z-index: -1;
}

.principle-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.principle-card:hover::before {
    height: 100%;
}

.principle-icon {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: var(--transition);
}

.principle-card:hover .principle-icon {
    color: var(--white);
    transform: rotateY(180deg);
}

.principle-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.principle-card h3::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    transition: var(--transition);
}

.principle-card:hover h3::after {
    background: var(--white);
    width: 100px;
}

.principle-card p {
    font-size: 15px;
}

/* Contact Section */
.contact {
    background: var(--white);
}

.contact-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.contact-content {
    max-width: 700px;
    margin-bottom: 40px;
}

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

.contact-content p {
    font-size: 18px;
    margin-bottom: 30px;
}

.contact-number {
    display: inline-flex;
    align-items: center;
    background: var(--primary-color);
    color: var(--white);
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 24px;
    font-weight: 700;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-number:hover {
    background: var(--secondary-color);
    transform: scale(1.05);
}

.contact-number i {
    margin-right: 15px;
    font-size: 30px;
}

/* Testimonials */
.testimonials {
    background: #f9f9f9;
}

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

.testimonial-slider {
    margin: 0 -15px;
}

.testimonial-card {
    background: var(--white);
    border-radius: 10px;
    padding: 30px;
    margin: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 60px;
    color: rgba(46, 204, 113, 0.1);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
    margin-bottom: 20px;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 15px;
}

.author-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.author-info p {
    font-size: 14px;
    color: #7f8c8d;
}

/* Style cho nút điều hướng */
.slick-arrow {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex !important;
    /* Thêm !important để đảm bảo ghi đè */
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 0;
    /* Ẩn chữ */
}

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

.slick-prev {
    left: -50px;
}

.slick-next {
    right: -50px;
}

/* Thêm icon mũi tên bằng pseudo-element */
.slick-prev:before,
.slick-next:before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.slick-prev:before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M15.41 16.59L10.83 12l4.58-4.59L14 6l-6 6 6 6 1.41-1.41z'/%3E%3C/svg%3E");
}

.slick-next:before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M8.59 16.59L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.41z'/%3E%3C/svg%3E");
}

/* Responsive cho mobile */
@media (max-width: 768px) {
    .slick-prev {
        left: 10px;
    }

    .slick-next {
        right: 10px;
    }
}

/* .slick-next::before{
    content: "" !important;
} */
/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 80px 0 20px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1476231682828-37e571bc172f?ixlib=rb-4.0.3&amp;ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&amp;auto=format&amp;fit=crop&amp;w=1374&amp;q=80') center/cover;
    opacity: 0.1;
    z-index: 0;
}

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

.footer-col h3 {
    font-size: 22px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

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

.footer-col p {
    margin-bottom: 15px;
    font-size: 15px;
    opacity: 0.8;
}

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

.footer-links a {
    display: flex;
    align-items: center;
    transition: var(--transition);
    opacity: 0.8;
}

.footer-links a:hover {
    color: var(--primary-color);
    opacity: 1;
    transform: translateX(5px);
}

.footer-links a i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
}

.footer-contact i {
    color: var(--primary-color);
    margin-right: 15px;
    font-size: 18px;
    margin-top: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    opacity: 0.7;
}

/* Floating Zalo Button */
.floating-zalo {
    position: fixed;
    bottom: 100px;
    left: 30px;
    z-index: 999;
}

.zalo-button {
    display: flex;
    align-items: center;
    background: #0068ff;
    color: var(--white);
    padding: 12px 20px;
    border-radius: 50px;
    box-shadow: 0 10px 25px rgba(0, 104, 255, 0.3);
    font-weight: 600;
    transition: var(--transition);
    animation: pulse 2s infinite;
    text-decoration: none;
}

.zalo-button:hover {
    background: #0052cc;
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 104, 255, 0.4);
}

.zalo-button img {
    width: 28px;
    height: 28px;
    margin-right: 8px;
}

.zalo-button span {
    font-size: 16px;
}

/* Floating Hotline Button */
.floating-hotline {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: 999;
}

.hotline-button {
    display: flex;
    align-items: center;
    background: var(--primary-color);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 50px;
    box-shadow: 0 10px 25px rgba(46, 204, 113, 0.3);
    font-weight: 600;
    transition: var(--transition);
    animation: pulse 2s infinite;
    position: relative;
    overflow: hidden;
}

.hotline-button:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(46, 204, 113, 0.4);
}

.hotline-button i {
    font-size: 24px;
    margin-right: 10px;
}

.hotline-button::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: ripple 3s linear infinite;
    opacity: 0;
}

.hotline-button::after {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: ripple 3s linear infinite 1.5s;
    opacity: 0;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes ripple {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }

    50% {
        opacity: 0.3;
    }

    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* Responsive Styles */
@media (max-width: 992px) {

    .about-content,
    .why-choose-content {
        flex-direction: column;
    }

    .about-img,
    .why-choose-img {
        margin-bottom: 30px;
    }

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

    .section-title h2 {
        font-size: 32px;
    }

    .banner-content h1 {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    /* .header-top .container {
        flex-direction: column;
        text-align: center;
    }

    .logo-container {
        margin-bottom: 15px;
        justify-content: center;
    }

    .hotline {
        justify-content: center;
    }

    .main-menu {
        flex-wrap: wrap;
    }

    .main-menu li {
        margin: 5px 10px;
    } */

    .banner {
        height: 500px;
    }

    .banner-content h1 {
        font-size: 32px;
    }

    .banner-content p {
        font-size: 18px;
    }

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

    .principles-container {
        grid-template-columns: 1fr;
    }

    .slick-prev {
        left: -20px;
    }

    .slick-next {
        right: -20px;
    }
}

@media (max-width: 576px) {
    .stats-container {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 60px 0;
    }

    .banner-content h1 {
        font-size: 17px;
    }

    .banner-content p {
        font-size: 14px;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .banner {
        height: 400px;
    }

    .floating-zalo {
        bottom: 85px;
        left: 20px;
    }

    .zalo-button {
        padding: 10px 16px;
    }

    .zalo-button img {
        width: 24px;
        height: 24px;
    }

    .zalo-button span {
        font-size: 14px;
    }

    .floating-hotline {
        bottom: 20px;
        left: 20px;
    }

    .hotline-button {
        padding: 12px 20px;
        font-size: 14px;
    }

    .hotline-button i {
        font-size: 20px;
    }
}