:root {
    --primary-color: #2563eb;
    --secondary-color: #3b82f6;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #ffffff;
    --light-bg: #f8fafc;
    --dark-bg: #1e293b;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

.full-width {
    width: 100%;
    max-width: 100vw;
    margin: 0;
    padding: 6rem 0;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
    padding: 0 1rem;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.header.scroll-down {
    transform: translateY(-100%);
}

.header.scroll-up {
    transform: translateY(0);
    box-shadow: var(--shadow);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-img {
    height: 32px;
    width: auto;
}

.logo h1 {
    font-size: 1.25rem;
    color: var(--text-color);
    font-weight: 600;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.nav-contact-btn {
    background: transparent;
    color: var(--text-color) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem !important;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: all 0.3s ease !important;
    border: 1px solid var(--primary-color);
}

.nav-contact-btn:hover {
    transform: translateY(-2px);
    background: rgba(37, 99, 235, 0.1) !important;
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #e0f2fe 0%, #dbeafe 25%, #eff6ff 50%, #f0f9ff 75%, #e0f2fe 100%);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}


.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.6) 0%, transparent 60%);
    animation: lightSpot 8s ease-in-out infinite;
    pointer-events: none;
}


.light-spot-1 {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    top: 20%;
    left: 10%;
    animation: floatSpot 15s ease-in-out infinite;
    pointer-events: none;
}

.light-spot-2 {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    bottom: 15%;
    right: 10%;
    animation: floatSpot 18s ease-in-out infinite reverse;
    pointer-events: none;
}

.light-spot-3 {
    position: absolute;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.45) 0%, transparent 70%);
    top: 60%;
    left: 30%;
    animation: floatSpot 12s ease-in-out infinite;
    pointer-events: none;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes lightSpot {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(5%, 5%) scale(1.2);
        opacity: 0.4;
    }
    100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.6;
    }
}

@keyframes floatSpot {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.4;
    }
    25% {
        transform: translate(3%, 2%) scale(1.1);
        opacity: 0.5;
    }
    50% {
        transform: translate(1%, 4%) scale(0.9);
        opacity: 0.45;
    }
    75% {
        transform: translate(-2%, 1%) scale(1.05);
        opacity: 0.55;
    }
    100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.4;
    }
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.hero-text {
    max-width: 600px;
}

.hero-text h1 {
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.75rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--light-text);
    margin-bottom: 2.5rem;
}

.hero-image {
    position: relative;
    animation: float 6s ease-in-out infinite;
    transform: scale(1.1);
    margin-left: -2rem;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    object-fit: contain;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn i {
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-primary {
    background: var(--gradient);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-download {
    background: var(--gradient-accent);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.hero-stats {
    max-width: 1400px;
    margin: 4rem auto 0;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
}

.stat-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.stat-label {
    color: var(--light-text);
    font-size: 1rem;
}

/* Features Section */
.features {
    background-color: var(--light-bg);
}

.features-grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.feature-card p {
    color: var(--light-text);
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.feature-list li i {
    color: var(--success-color);
}

/* Solutions Section */
.solutions {
    background: white;
}

.solutions-grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    gap: 3rem;
}

.solution-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.solution-content {
    padding: 3rem;
}

.solution-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.solution-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.solution-content p {
    color: var(--light-text);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.solution-features {
    list-style: none;
    margin-bottom: 2rem;
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.solution-features li i {
    color: var(--success-color);
}

.solution-image {
    position: relative;
    overflow: hidden;
}

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

/* Advantages Section */
.advantages {
    background: var(--light-bg);
    position: relative;
    overflow: hidden;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.advantages-grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.advantage-card {
    background: white;
    border-radius: 4px;
    padding: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(37, 99, 235, 0.1);
    box-shadow: var(--shadow-sm);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: rgba(37, 99, 235, 0.2);
}

.advantage-icon {
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon {
    background: var(--primary-color);
    transform: scale(1.1);
}

.advantage-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon i {
    color: white;
}

.advantage-text {
    flex: 1;
}

.advantage-text h3 {
    color: var(--text-color);
    margin: 0 0 0.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.advantage-text p {
    color: var(--light-text);
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: #fff;
}

.contact-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.contact-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8rem;
}

.contact-text {
    text-align: left;
}

.contact-text h2 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.contact-text p {
    color: var(--light-text);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.contact-time {
    font-size: 1rem !important;
    color: var(--primary-color) !important;
    margin-top: 1.5rem !important;
}

.contact-qrcode {
    width: 240px;
    height: 240px;
}

.contact-qrcode img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: white;
    padding: 6rem 0 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.footer-section h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.75rem 0;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-section p {
    color: #94a3b8;
    margin: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

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

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.social-link i {
    font-size: 1.25rem;
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 800px;
        margin: 0 auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        max-width: 600px;
        margin: 0 auto;
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
        box-shadow: var(--shadow);
        z-index: 1000;
        transition: all 0.3s ease;
        border-top: 1px solid rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
        z-index: 1001;
        padding: 0.5rem;
        cursor: pointer;
    }

    .menu-toggle i {
        font-size: 1.5rem;
        color: var(--text-color);
        transition: all 0.3s ease;
    }

    .nav-links a {
        padding: 0.8rem 1rem;
        text-align: center;
        border-radius: 4px;
        margin: 0.2rem 0;
        display: block;
        width: 100%;
    }

    .nav-links a:hover {
        background: rgba(37, 99, 235, 0.1);
        color: var(--primary-color);
    }

    .nav-contact-btn {
        margin-top: 0.5rem;
        border: 1px solid var(--primary-color);
        color: var(--primary-color) !important;
    }

    .nav-contact-btn:hover {
        background: var(--primary-color) !important;
        color: white !important;
    }

    .header {
        background: white;
        box-shadow: var(--shadow-sm);
    }

    .nav-container {
        padding: 0.5rem 1rem;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .solution-card {
        grid-template-columns: 1fr;
    }

    .solution-image {
        height: 300px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .contact {
        padding: 4rem 0;
    }

    .contact-content {
        flex-direction: column;
        gap: 3rem;
        text-align: center;
    }

    .contact-text {
        text-align: center;
    }

    .contact-text h2 {
        font-size: 2rem;
    }

    .contact-qrcode {
        width: 200px;
        height: 200px;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .advantage-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: 1fr;
    }

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

    .contact {
        padding: 3rem 0;
    }

    .contact-content {
        gap: 2.5rem;
    }

    .contact-qrcode {
        width: 180px;
        height: 180px;
    }
}

.hero-advantages {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
    padding: 0 1rem;
}

.advantage-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: transform 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-icon {
    width: 50px;
    height: 50px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.advantage-text {
    flex: 1;
}

.advantage-text h3 {
    color: #333;
    margin: 0 0 0.25rem 0;
    font-size: 1.1rem;
}

.advantage-text p {
    color: #666;
    margin: 0;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .hero-advantages {
        flex-direction: column;
        align-items: center;
    }
    
    .advantage-card {
        width: 100%;
        max-width: 320px;
    }
}

.scroll-down-arrow {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--primary-color);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    cursor: pointer;
    z-index: 10;
}

.scroll-down-arrow i {
    opacity: 0.8;
    transition: all 0.3s ease;
}

.scroll-down-arrow:hover i {
    opacity: 1;
    transform: scale(1.1);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}