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

:root {
    --primary-blue: #0066CC;
    --secondary-blue: #004C99;
    --light-blue: #E6F2FF;
    --accent-blue: #00A3E0;
    --white: #FFFFFF;
    --gray-light: #F5F7FA;
    --gray-medium: #E0E6ED;
    --gray-dark: #2C3E50;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --shadow-sm: 0 2px 8px rgba(0, 102, 204, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 102, 204, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 102, 204, 0.16);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo-icon {
    font-size: 28px;
    color: var(--accent-blue);
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.logo-text {
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: var(--transition);
}

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

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 163, 224, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(0, 102, 204, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

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

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}

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

.btn-secondary:hover {
    background: var(--light-blue);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    text-align: center;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.chip-animation {
    position: relative;
    width: 400px;
    height: 400px;
}

.chip-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    border-radius: 20px;
    box-shadow: 0 0 60px rgba(0, 102, 204, 0.4);
    animation: pulse 3s ease-in-out infinite;
}

.chip-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    border: 2px solid var(--primary-blue);
    border-radius: 50%;
    opacity: 0.3;
    animation: rotate 20s linear infinite;
}

.chip-ring::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--primary-blue);
    border-radius: 50%;
}

.chip-particles {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
}

.chip-particles::before,
.chip-particles::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--accent-blue);
    border-radius: 50%;
    animation: orbit 8s linear infinite;
}

.chip-particles::before {
    top: 0;
    left: 50%;
    animation-delay: 0s;
}

.chip-particles::after {
    top: 0;
    left: 50%;
    animation-delay: -4s;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 0 0 60px rgba(0, 102, 204, 0.4);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.05);
        box-shadow: 0 0 80px rgba(0, 102, 204, 0.6);
    }
}

@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes orbit {
    from {
        transform: rotate(0deg) translateX(180px) rotate(0deg);
    }
    to {
        transform: rotate(360deg) translateX(180px) rotate(-360deg);
    }
}

section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 4px;
}

.about {
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.about-card {
    background: var(--gray-light);
    padding: 40px;
    border-radius: 16px;
    transition: var(--transition);
    border: 1px solid var(--gray-medium);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.about-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    color: var(--primary-blue);
}

.about-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.about-text {
    color: var(--text-secondary);
    line-height: 1.8;
}

.business {
    background: var(--gray-light);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.business-card {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-medium);
}

.business-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.business-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    color: var(--primary-blue);
}

.business-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.business-text {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.business-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 6px 16px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.values {
    background: var(--white);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.value-item {
    padding: 40px;
    border-left: 4px solid var(--primary-blue);
    background: var(--gray-light);
    border-radius: 0 16px 16px 0;
    transition: var(--transition);
}

.value-item:hover {
    background: var(--light-blue);
    transform: translateX(8px);
}

.value-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-blue);
    opacity: 0.2;
    margin-bottom: 16px;
}

.value-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.value-text {
    color: var(--text-secondary);
    line-height: 1.8;
}

.contact {
    background: var(--gray-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    color: var(--primary-blue);
}

.contact-details h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.contact-details p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 24px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--gray-medium);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-slogan {
    color: rgba(255, 255, 255, 0.7);
    font-size: 18px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-link-group h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-link-group ul {
    list-style: none;
}

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

.footer-link-group a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link-group a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 48px;
    }

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

    .hero-visual {
        display: none;
    }

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

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

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

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        box-shadow: var(--shadow-md);
    }

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

    .mobile-menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

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

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

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

    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

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

    .btn {
        width: 100%;
    }

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

    .about-card,
    .business-card,
    .contact-form {
        padding: 24px;
    }
}