:root {
    --primary: #1a56db;
    --primary-light: #3b82f6;
    --primary-dark: #1e40af;
    --accent: #0ea5e9;
    --text-dark: #111827;
    --text-body: #374151;
    --text-light: #6b7280;
    --text-muted: #9ca3af;
    --bg-light: #f9fafb;
    --bg-dark: #111827;
    --border: #e5e7eb;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-body);
    line-height: 1.6;
    font-size: 16px;
    background: #fff;
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

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

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    height: 72px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.navbar-brand img {
    height: 40px;
    width: auto;
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.02);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    display: block;
    padding: 10px 20px;
    color: var(--text-body);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius);
    transition: all 0.25s ease;
    text-decoration: none;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.25s ease;
    border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: calc(100% - 40px);
}

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

.navbar-toggler {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.navbar-toggler span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-dark);
    margin: 5px 0;
    border-radius: 2px;
    transition: all 0.3s;
}

@media (max-width: 768px) {
    .navbar {
        height: 64px;
    }
    .navbar-toggler {
        display: block;
    }
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
    }
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .nav-link {
        padding: 14px 18px;
        width: 100%;
    }
    .nav-link::after {
        display: none;
    }
}

.hero-section {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.2s ease-in-out;
}

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

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 22, 40, 0.92) 0%, rgba(15, 35, 60, 0.85) 40%, rgba(26, 54, 93, 0.5) 70%, rgba(30, 58, 95, 0.3) 100%);
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content {
    max-width: 560px;
    text-align: left;
    padding: 80px 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #60a5fa;
    font-size: 12px;
    font-weight: 600;
    border-radius: 24px;
    margin-bottom: 28px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.12;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-title span {
    background: linear-gradient(135deg, #60a5fa 0%, #22d3ee 50%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 40px;
    line-height: 1.9;
    font-weight: 400;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 56px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s;
    border: none;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.5);
    color: #fff;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    background: rgba(255,255,255,0.08);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 8px;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.4);
    color: #fff;
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    text-align: left;
    position: relative;
    padding-right: 40px;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.2), transparent);
}

.stat-number {
    display: block;
    font-size: 2.25rem;
    font-weight: 700;
    color: #fff;
    line-height: 1;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    font-weight: 400;
}

.hero-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.hero-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    cursor: pointer;
    transition: all 0.4s;
    border: 2px solid transparent;
}

.hero-dots .dot.active {
    background: transparent;
    border-color: #fff;
    transform: scale(1.1);
}

.hero-dots .dot:hover {
    background: rgba(255,255,255,0.5);
}

.section {
    padding: 80px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(26, 86, 219, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.section-tag.light {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-title.light {
    color: #fff;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.section-subtitle.light {
    color: rgba(255,255,255,0.7);
}

.about-section {
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.about-header {
    text-align: center;
    margin-bottom: 40px;
}

.about-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.about-lead {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 56px;
}

@media (max-width: 768px) {
    .about-features {
        grid-template-columns: 1fr;
    }
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    align-items: start;
}

@media (max-width: 991px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

.about-company-card {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 32px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

.about-company-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.about-company-card p {
    color: var(--text-body);
    margin-bottom: 16px;
    line-height: 1.85;
}

.about-features-vertical {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-card-mini {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card-mini:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.feature-card-mini .feature-number {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
}

.feature-card-mini .feature-content h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.feature-card-mini .feature-content p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

.feature-card {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: #fff;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: transparent;
}

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

.feature-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    opacity: 0.8;
}

.feature-content h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.feature-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

.about-company {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    padding: 48px;
    background: #fff;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .about-company {
        grid-template-columns: 1fr;
        padding: 28px;
        gap: 32px;
    }
}

.company-content h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.company-content p {
    color: var(--text-body);
    margin-bottom: 18px;
    line-height: 1.85;
}

.company-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.company-tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--bg-light) 0%, #fff 100%);
    color: var(--text-body);
    font-size: 13px;
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.company-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.company-visual {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.visual-card {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 22px;
    background: linear-gradient(135deg, var(--bg-light) 0%, #fff 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.visual-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.visual-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px rgba(26, 86, 219, 0.25);
}

.visual-icon svg {
    width: 26px;
    height: 26px;
    fill: #fff;
}

.visual-text strong {
    display: block;
    font-size: 15px;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.visual-text span {
    font-size: 13px;
    color: var(--text-light);
}

.products-section {
    background: #fff;
    position: relative;
    padding: 60px 0;
}

.products-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

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

.product-category {
    margin-bottom: 48px;
}

.product-category:last-child {
    margin-bottom: 0;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-light);
    position: relative;
}

.category-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.category-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-light) 0%, #fff 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.category-icon img {
    max-width: 28px;
    max-height: 28px;
    object-fit: contain;
}

.category-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

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

.product-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 991px) {
    .product-grid, .product-grid-2, .product-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .product-grid, .product-grid-2, .product-grid-4 {
        grid-template-columns: 1fr;
    }
}

.product-card {
    background: #fff;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.35s ease;
    border: 1px solid var(--border);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.35s;
}

.product-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px);
    border-color: transparent;
}

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

.product-card-sm {
    padding: 18px;
    background: linear-gradient(135deg, var(--bg-light) 0%, #fff 100%);
}

.product-card-sm h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.product-card-sm p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
}

.product-img {
    height: 160px;
    background: linear-gradient(135deg, var(--bg-light) 0%, #fff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.product-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.02) 100%);
}

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

.product-card:hover .product-img img {
    transform: scale(1.08);
}

.product-video {
    height: 160px;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-video iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.product-info {
    padding: 16px;
}

.product-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.product-info p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
}

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

.feature-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-body);
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.partners-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1e40af 100%);
    position: relative;
    overflow: hidden;
}

.partners-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    position: relative;
    z-index: 1;
}

@media (max-width: 991px) {
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 576px) {
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.partner-card {
    background: rgba(255,255,255,0.98);
    border-radius: var(--radius-xl);
    padding: 28px 20px;
    text-align: center;
    transition: all 0.35s ease;
    border: 1px solid rgba(255,255,255,0.1);
}

.partner-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.partner-logo {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-light) 0%, #fff 100%);
    border-radius: var(--radius-lg);
    padding: 12px;
}

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

.partner-info h5 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.partner-info p {
    font-size: 12px;
    color: var(--text-light);
}

.contact-section {
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 32px;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-info {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 36px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

.contact-item {
    display: flex;
    gap: 18px;
    margin-bottom: 28px;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(26, 86, 219, 0.25);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    fill: #fff;
}

.contact-text h5 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-text p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
}

.contact-form {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 36px;
    border: 1px solid var(--border);
}

.contact-form h4 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 28px;
}

.contact-map {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 36px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

.contact-map h4 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.map-container {
    width: 100%;
    height: 340px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-light);
    border: 1px solid var(--border);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.map-tip {
    margin-top: 16px;
    text-align: center;
}

.map-tip p {
    font-size: 13px;
    color: var(--text-light);
}

.amap-info-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    padding: 8px 0 4px;
}

.amap-info-content {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
    padding: 0 0 8px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group {
    margin-bottom: 18px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    transition: all 0.25s;
    background: var(--bg-light);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 110px;
}

.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(26, 86, 219, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(26, 86, 219, 0.4);
}

footer {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0a0f1a 100%);
    padding: 64px 0 0;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 56px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
}

.footer-brand img {
    height: 40px;
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
}

.footer-links-col h5,
.footer-contact-col h5 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 12px;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    transition: all 0.2s;
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary-light);
    transition: width 0.2s;
}

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

.footer-links a:hover::after {
    width: 100%;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

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

.footer-bottom a {
    color: rgba(255,255,255,0.5);
    transition: color 0.2s;
}

.footer-bottom a:hover {
    color: #fff;
}

.scroll-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(26, 86, 219, 0.4);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(26, 86, 219, 0.5);
}

.scroll-top svg {
    width: 22px;
    height: 22px;
    fill: #fff;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .hero-overlay {
        background: linear-gradient(135deg, rgba(10, 22, 40, 0.95) 0%, rgba(15, 35, 60, 0.9) 50%, rgba(26, 54, 93, 0.7) 100%);
    }
    .hero-content {
        padding: 48px 0;
    }
    .hero-title {
        font-size: 2.25rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    .btn-primary, .btn-outline {
        width: 100%;
        justify-content: center;
    }
    .hero-stats {
        gap: 28px;
    }
    .stat-item {
        padding-right: 28px;
    }
    .stat-item:not(:last-child)::after {
        height: 36px;
    }
    .stat-number {
        font-size: 1.75rem;
    }
    .hero-dots {
        bottom: 28px;
    }
    .section {
        padding: 72px 0;
    }
    .section-title, .about-title {
        font-size: 1.85rem;
    }
}