/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #243544;
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

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

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 80px;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), var(--hero-bg, none) center/cover no-repeat;
    color: white;
}

/* Header */
.header {
    padding: 24px 0;
}

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

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

.nav {
    display: flex;
    align-items: center;
    gap: 48px;
}

.nav-menu {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #369EE8;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.icon-btn {
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s;
}

.icon-btn:hover {
    opacity: 0.8;
}

.btn-outline {
    padding: 12px 28px;
    border: 2px solid white;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: white;
    color: #243544;
}

/* Hero Content */
.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 100%;
}

.hero-title {
    font-size: 72px;
    font-weight: 700;
    margin-bottom: 48px;
    line-height: 1.2;
}

.hero-cta {
    padding: 18px 48px;
    background: #369EE8;
    color: white;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: all 0.3s;
}

.hero-cta:hover {
    background: #2a8ad4;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(54, 158, 232, 0.3);
}

.hero-arrow {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* Floating Sidebar */
.floating-sidebar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: none;
    flex-direction: column;
    gap: 1px;
    background: white;
    box-shadow: -2px 0 16px rgba(0, 0, 0, 0.1);
}

.sidebar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    background: #369EE8;
    color: white;
    cursor: pointer;
    transition: all 0.3s;
    min-width: 80px;
}

.sidebar-item:hover {
    background: #2a8ad4;
    padding-right: 24px;
}

.sidebar-item span {
    font-size: 12px;
    font-weight: 500;
}

/* Products Section */
.products {
    padding: 10px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.product-card {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

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

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

.product-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.product-info h3 {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.3;
    max-width: 80%;
}

.product-icon {
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.3s;
}

.product-card:hover .product-icon {
    opacity: 1;
    transform: translateX(0);
}

/* About Section */
.about {
    position: relative;
    padding: 120px 0;
    background: #F7F7F7;
}

.about-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.15;
}

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

.about-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.section-label {
    display: inline-block;
    margin-bottom: 24px;
}

.label-text {
    display: inline-block;
    padding: 8px 24px;
    background: white;
    color: #369EE8;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    border-left: 4px solid #369EE8;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 24px;
    color: #243544;
}

.section-title.center {
    text-align: center;
}

.section-description {
    font-size: 18px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 32px;
}

.section-description.center {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 64px;
}

.btn-primary {
    padding: 16px 48px;
    background: #369EE8;
    color: white;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary:hover {
    background: #2a8ad4;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(54, 158, 232, 0.3);
}

.about-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.about-image-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.about-image-card.large {
    grid-row: span 2;
}

.about-image-card.wide {
    grid-column: span 2;
}

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

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

.image-label {
    position: absolute;
    bottom: 20px;
    left: 20px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.95);
    color: #243544;
    font-size: 16px;
    font-weight: 600;
    border-radius: 4px;
}

/* Stats Section */
.stats {
    position: relative;
    margin-top: 30px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
    padding: 48px 80px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 24px;
}

.stat-icon {
    flex-shrink: 0;
}
@media screen and (max-width: 500px) {
    .stat-icon {
        display: none;
    }
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: #369EE8;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    font-weight: 600;
    color: #666;
    letter-spacing: 1px;
}

/* Applications Section */
.applications {
    padding: 120px 0;
    background: white;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.application-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.application-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.application-card img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.application-info {
    padding: 32px;
    background: white;
    display: flex;
    align-items: center;
    gap: 16px;
}

.application-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #369EE8;
    flex-shrink: 0;
}

.application-info h3 {
    font-size: 24px;
    font-weight: 600;
    color: #243544;
}

/* Cases Section */
.cases {
    position: relative;
    padding: 120px 0;
    background: #F7F7F7;
}

.cases-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

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

.cases .container {
    position: relative;
}

.text-primary {
    color: #369EE8;
}

.case-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-top: 64px;
}

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

.case-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.case-tag {
    display: inline-block;
    padding: 8px 20px;
    background: #369EE8;
    color: white;
    font-size: 14px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 24px;
}

.case-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #243544;
}

.case-description {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 32px;
}

.link-underline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: #369EE8;
    position: relative;
    padding-bottom: 4px;
}

.link-underline::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: #369EE8;
    transition: width 0.3s;
}

.link-underline:hover::after {
    width: 120%;
}

/* Service Process Section */
.service-process {
    padding: 120px 0;
    background: white;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-top: 64px;
}
@media screen and (max-width: 500px) {
    .process-grid {
        grid-template-columns: repeat(2,1fr);
        gap: 10px;
    }
}

.process-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.process-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.process-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.process-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.process-label {
    font-size: 16px;
    font-weight: 600;
}

.process-number {
    font-size: 36px;
    font-weight: 700;
    color: #369EE8;
}

/* News Section */
.news {
    position: relative;
    padding: 120px 0;
    background: #F7F7F7;
}

.news-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

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

.news .container {
    position: relative;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 64px;
    margin-bottom: 64px;
}

.news-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.news-card img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}

.news-content {
    padding: 32px;
}

.news-date {
    display: block;
    font-size: 14px;
    color: #999;
    margin-bottom: 16px;
}

.news-title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 16px;
    color: #243544;
}

.news-excerpt {
    font-size: 14px;
    line-height: 1.7;
    color: #666;
}

/* Footer */
.footer {
    background: #243544;
    color: white;
}

.footer-cta {
    padding: 80px 0;
    background: #369EE8;
    text-align: center;
}

.footer-cta h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 32px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.footer-main {
    padding: 80px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 64px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 24px;
}

.footer-about p {
    font-size: 16px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s;
}

.social-links a:hover {
    background: #369EE8;
    transform: translateY(-4px);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-links a,
.footer-contact li {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #369EE8;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
    display: flex;
    gap: 32px;
}

.footer-legal a {
    transition: color 0.3s;
}

.footer-legal a:hover {
    color: #369EE8;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        padding: 0 40px;
    }

    .hero-title {
        font-size: 56px;
    }

    .section-title {
        font-size: 40px;
    }

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

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

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }

    .header .container {
        flex-direction: column;
        gap: 24px;
    }

    .nav {
        flex-direction: column;
        width: 100%;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .hero-title {
        font-size: 40px;
    }

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

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

    .about-content,
    .case-featured {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
        padding: 32px 24px;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .floating-sidebar {
        flex-direction: row;
        bottom: 0;
        top: auto;
        left: 0;
        right: 0;
        transform: none;
    }

    .sidebar-item {
        flex: 1;
        padding: 16px 12px;
    }
}