:root {
    --medical-blue: #0072BC;
    --medical-blue-dark: #005a8f;
    --medical-blue-light: #4d9fd4;
    --medical-blue-pale: #e8f4fb;
    --sun-orange: #FF7F27;
    --sun-orange-dark: #e66d15;
    --mountain-gray: #A9A9A9;
    --eco-green: #00AF7F;
    --text-primary: #1a2a3a;
    --text-secondary: #5a6a7a;
    --text-light: #8a9aaa;
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-blue-tint: #f0f7fc;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 114, 188, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 114, 188, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 114, 188, 0.12);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--medical-blue);
    margin-bottom: 16px;
    position: relative;
}

.section-label::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: var(--sun-orange);
    margin: 12px auto 0;
}

.section-title {
    font-size: clamp(28px, 5vw, 40px);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.section-header.light .section-label {
    color: var(--medical-blue-light);
}

.section-header.light .section-title {
    color: white;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--medical-blue);
    color: white;
    border-color: var(--medical-blue);
}

.btn-primary:hover {
    background: var(--medical-blue-dark);
    border-color: var(--medical-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--medical-blue);
    border-color: var(--medical-blue);
}

.btn-outline:hover {
    background: var(--medical-blue);
    color: white;
    transform: translateY(-2px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
}

.logo-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-img {
    height: 44px;
    width: auto;
}

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

.brand-name {
    font-family: 'Inter', sans-serif;
    font-size: 22px;
    font-weight: 700;
    font-style: italic;
    color: var(--medical-blue);
    letter-spacing: 1px;
    line-height: 1.1;
}

.brand-tagline {
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    font-weight: 500;
    color: var(--mountain-gray);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--medical-blue);
    transition: var(--transition);
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

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

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

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

.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-blue-tint) 100%);
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(0, 114, 188, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 114, 188, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-gradient {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse at center, rgba(0, 114, 188, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

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

.hero-label {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.label-line {
    display: block;
    width: 40px;
    height: 2px;
    background: var(--sun-orange);
}

.hero-title {
    font-family: 'Inter', sans-serif;
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 700;
    font-style: italic;
    color: var(--text-primary);
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 16px;
}

.title-highlight {
    color: var(--medical-blue);
    position: relative;
}

.title-highlight::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--sun-orange);
    opacity: 0.3;
    z-index: -1;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 500;
    color: var(--medical-blue);
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 480px;
    margin-bottom: 40px;
    line-height: 1.8;
}

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

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.visual-ring {
    position: absolute;
    border: 1px solid rgba(0, 114, 188, 0.15);
    border-radius: 50%;
    animation: pulse-ring 4s ease-out infinite;
}

.ring-1 {
    width: 300px;
    height: 300px;
    animation-delay: 0s;
}

.ring-2 {
    width: 400px;
    height: 400px;
    animation-delay: 0.5s;
}

.ring-3 {
    width: 500px;
    height: 500px;
    animation-delay: 1s;
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.9);
        opacity: 0.5;
    }
    50% {
        opacity: 0.2;
    }
    100% {
        transform: scale(1.1);
        opacity: 0;
    }
}

.visual-core {
    position: relative;
    z-index: 1;
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.visual-core img {
    width: 280px;
    height: auto;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-light);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--medical-blue), transparent);
    animation: scroll-anim 2s ease-in-out infinite;
}

@keyframes scroll-anim {
    0%, 100% {
        transform: scaleY(1);
        opacity: 1;
    }
    50% {
        transform: scaleY(0.5);
        opacity: 0.5;
    }
}

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

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

.about-card {
    position: relative;
    padding: 40px 32px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.about-card:hover {
    border-color: var(--medical-blue-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.card-number {
    font-family: 'Inter', sans-serif;
    font-size: 48px;
    font-weight: 700;
    color: var(--medical-blue-pale);
    line-height: 1;
    margin-bottom: 24px;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.card-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.products-section {
    background: var(--bg-light);
}

.product-showcase {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: start;
}

.product-image {
    position: relative;
    background: white;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.product-image img {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
}

.product-tag {
    position: absolute;
    top: 24px;
    left: 24px;
    padding: 8px 16px;
    background: var(--medical-blue);
    color: white;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
}

.product-details {
    padding-top: 20px;
}

.product-name {
    font-size: clamp(22px, 3vw, 28px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 40px;
    line-height: 1.4;
}

.tech-features {
    display: grid;
    gap: 28px;
}

.feature-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: white;
    border-radius: var(--radius-md);
    border-left: 3px solid var(--medical-blue);
    transition: var(--transition);
}

.feature-item:hover {
    box-shadow: var(--shadow-sm);
    border-left-color: var(--sun-orange);
}

.feature-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--medical-blue-pale);
    border-radius: var(--radius-sm);
    color: var(--medical-blue);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

.achievements-section {
    background: linear-gradient(135deg, var(--medical-blue) 0%, var(--medical-blue-dark) 100%);
    position: relative;
    overflow: hidden;
}

.achievements-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.achievement-item {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: var(--transition);
}

.achievement-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.achievement-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    color: white;
}

.achievement-icon svg {
    width: 24px;
    height: 24px;
}

.achievement-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: white;
    margin-bottom: 8px;
}

.achievement-content p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.contact-section {
    background: var(--bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--bg-blue-tint);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.contact-item:hover {
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--medical-blue);
    border-radius: var(--radius-sm);
    color: white;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.contact-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--medical-blue);
}

.contact-value:hover {
    color: var(--sun-orange);
}

.company-name-section {
    text-align: center;
    padding: 48px;
    background: linear-gradient(135deg, var(--medical-blue-pale) 0%, var(--bg-white) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.company-name-section h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.company-name-section p {
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.site-footer {
    background: var(--text-primary);
    color: white;
    padding: 48px 0 24px;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-logo {
    height: 36px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-company {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.footer-link {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--sun-orange);
}

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

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }

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

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-visual {
        min-height: 300px;
    }

    .visual-ring {
        display: none;
    }

    .visual-core {
        padding: 24px;
    }

    .visual-core img {
        width: 200px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

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

    .product-image {
        padding: 32px;
    }

    .product-image img {
        max-width: 240px;
    }

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

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

@media (max-width: 768px) {
    .section {
        padding: 72px 0;
    }

    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: relative;
    }

    .nav-list {
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        flex-direction: column;
        gap: 0;
        background: white;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-lg);
        padding: 16px 0;
        min-width: 200px;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: var(--transition);
    }

    .nav-list.active {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .nav-list li {
        margin: 0;
    }

    .nav-link {
        display: block;
        padding: 12px 24px;
    }

    .nav-link::after {
        display: none;
    }

    .nav-link:hover {
        background: var(--bg-blue-tint);
    }

    .hero-section {
        min-height: auto;
        padding: 120px 0 60px;
    }

    .scroll-indicator {
        display: none;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-brand {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .brand-tagline {
        display: none;
    }

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

    .btn {
        width: 100%;
    }

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

    .card-number {
        font-size: 36px;
    }

    .about-card {
        padding: 28px 24px;
    }

    .feature-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .achievement-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
    }

    .company-name-section {
        padding: 32px 24px;
    }

    .company-name-section h3 {
        font-size: 20px;
    }
}