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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "Segoe UI", system-ui, sans-serif;
    line-height: 1.6;
    color: #1d1d1f;
    background-color: #ffffff;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 0.5px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 22px;
    font-weight: 600;
    color: #1d1d1f;
    letter-spacing: -0.022em;
}

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

.nav-menu a {
    text-decoration: none;
    color: #1d1d1f;
    font-weight: 400;
    font-size: 17px;
    transition: color 0.3s ease;
    letter-spacing: -0.022em;
}

.nav-menu a:hover {
    color: #007aff;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    /* background: linear-gradient(180deg, #ffffff 0%, #fbfbfd 100%); */
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.4)),
        url("3K9A2653\ \(1\).jpg");
    background-size: cover;
    background-position: center;

    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
}

.hero-content {
    flex: 1;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.logo-container {
    margin-bottom: 40px;
    display: flex;
    justify-content: center;
}

.company-logo {
    height: 120px;
    width: auto;
    object-fit: contain;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 24px;
    letter-spacing: -0.025em;
    line-height: 1.05;
}

.hero-subtitle {
    font-size: 28px;
    color: rgb(15, 43, 18);
    margin-bottom: 48px;
    line-height: 1.14;
    font-weight: 400;
    letter-spacing: 0.007em;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Apple-style Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 16px 32px;
    text-decoration: none;
    border-radius: 980px;
    font-weight: 400;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    font-size: 17px;
    letter-spacing: -0.022em;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #007aff 0%, #0056cc 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(0, 122, 255, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(0, 122, 255, 0.5);
    background: linear-gradient(135deg, #0056cc 0%, #004499 100%);
}

.btn-secondary {
    background: rgba(0, 0, 0, 0.04);
    color: #007aff;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 0.5px solid rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.1);
}

.btn-download {
    background: linear-gradient(135deg, #30d158 0%, #26a644 100%);
    color: white;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 19px;
    padding: 18px 36px;
    box-shadow: 0 4px 14px 0 rgba(48, 209, 88, 0.39);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(48, 209, 88, 0.5);
    background: linear-gradient(135deg, #26a644 0%, #1e8035 100%);
}

/* Sections */
.section {
    padding: 120px 0;
    position: relative;
}

.section-alt {
    background: linear-gradient(180deg, #fafafa 0%, #f5f5f7 100%);
}

.section h2 {
    font-size: 48px;
    color: #1d1d1f;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.083;
}

.section-intro {
    font-size: 21px;
    color: #86868b;
    text-align: center;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.38;
    font-weight: 400;
    letter-spacing: 0.011em;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    align-items: center;
    margin-top: 60px;
}

.content-text p {
    margin-bottom: 24px;
    font-size: 19px;
    line-height: 1.47;
    color: #1d1d1f;
    font-weight: 400;
    letter-spacing: 0.012em;
}

.icon-placeholder {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Capabilities Grid */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 80px;
}

.capability-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 48px;
    border-radius: 24px;
    border: 0.5px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.04);
    transition: all 0.4s ease;
    position: relative;
}

.capability-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 48px rgba(0, 0, 0, 0.08);
    background: rgba(255, 255, 255, 0.95);
}

.capability-card h3 {
    color: #1d1d1f;
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.015em;
    line-height: 1.17;
}

.capability-card p {
    color: #86868b;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
    letter-spacing: 0.012em;
}

.highlight {
    font-size: 32px;
    font-weight: 700;
    color: #007aff;
    letter-spacing: -0.025em;
    line-height: 1.125;
}

/* Equipment Grid - Industrial 3D Style */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
    perspective: 1000px;
}

.equipment-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 32px;
    border-radius: 18px;
    border: 0.5px solid rgba(0, 122, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 122, 255, 0.06);
    transition: all 0.3s ease;
    position: relative;
}

.equipment-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 32px rgba(0, 122, 255, 0.12);
}

.equipment-item h3 {
    color: #1d1d1f;
    margin-bottom: 16px;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.015em;
    border-left: 3px solid #007aff;
    padding-left: 12px;
}

.equipment-item p {
    color: #86868b;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
}

/* Advantages Grid */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 80px;
}

.advantage {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 28px;
    border-radius: 16px;
    border: 0.5px solid rgba(48, 209, 88, 0.1);
    box-shadow: 0 3px 16px rgba(48, 209, 88, 0.06);
    transition: all 0.3s ease;
    position: relative;
}


.advantage:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 24px rgba(48, 209, 88, 0.12);
}

.advantage h4 {
    color: #1d1d1f;
    margin-bottom: 12px;
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -0.012em;
}

.advantage p {
    color: #86868b;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
}

/* Quality Control - Clinical 3D Style */
.quality-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.quality-item {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(250, 250, 252, 0.95) 100%);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    padding: 40px 28px;
    border-radius: 24px;
    border: 1px solid rgba(48, 209, 88, 0.1);
    box-shadow: 
        0 12px 40px rgba(48, 209, 88, 0.06),
        0 4px 16px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    text-align: center;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.quality-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, #30d158 50%, transparent 100%);
    border-radius: 0 0 2px 2px;
}

.quality-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 
        0 24px 60px rgba(48, 209, 88, 0.12),
        0 8px 32px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.quality-item h3 {
    color: #1d1d1f;
    margin-bottom: 20px;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.015em;
    position: relative;
}

.quality-item h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background: linear-gradient(90deg, #30d158, #32d74b);
    border-radius: 1px;
}

.quality-item p {
    color: #86868b;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
}

/* Laboratory Tests - Scientific Card Design */
.lab-tests, .micro-control {
    margin-top: 80px;
}

.lab-tests h3, .micro-control h3 {
    color: #1d1d1f;
    margin-bottom: 60px;
    font-size: 32px;
    font-weight: 600;
    text-align: center;
    letter-spacing: -0.022em;
    position: relative;
}

.lab-tests h3::before, .micro-control h3::before {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #ff9500 0%, #ffcc02 100%);
    border-radius: 2px;
}

.tests-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
}

.test-category {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 252, 240, 0.9) 100%);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    padding: 36px;
    border-radius: 22px;
    border: 1px solid rgba(255, 149, 0, 0.1);
    box-shadow: 
        0 8px 32px rgba(255, 149, 0, 0.08),
        0 2px 8px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    overflow: hidden;
}

.test-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff9500 0%, #ffcc02 50%, #ff9500 100%);
    border-radius: 22px 22px 0 0;
}

.test-category:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 
        0 16px 48px rgba(255, 149, 0, 0.12),
        0 4px 16px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.test-category h4 {
    color: #1d1d1f;
    margin-bottom: 24px;
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -0.015em;
    display: flex;
    align-items: center;
    gap: 12px;
}

.test-category h4::before {
    content: '';
    width: 10px;
    height: 10px;
    background: linear-gradient(45deg, #ff9500, #ffcc02);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(255, 149, 0, 0.3);
}

.test-category ul {
    margin-left: 0;
    margin-bottom: 20px;
    list-style: none;
    padding-left: 0;
}

.test-category li {
    margin-bottom: 12px;
    color: #1d1d1f;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
    position: relative;
}

.test-category li::before {
    content: '•';
    color: #ff9500;
    font-weight: bold;
    position: absolute;
    left: -16px;
}

.test-category em {
    color: #86868b;
    font-style: normal;
    font-size: 17px;
    background: rgba(255, 149, 0, 0.05);
    padding: 8px 12px;
    border-radius: 8px;
    display: inline-block;
    margin-top: 12px;
}

/* Control Schedule - Timeline Card Design */
.control-schedule {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 36px;
}

.control-item {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(245, 248, 255, 0.95) 100%);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    padding: 36px;
    border-radius: 20px;
    border: 1px solid rgba(0, 122, 255, 0.12);
    box-shadow: 
        0 10px 40px rgba(0, 122, 255, 0.08),
        0 4px 20px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        inset 0 -1px 0 rgba(0, 122, 255, 0.05);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.control-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #007aff 0%, #5ac8fa 50%, #007aff 100%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.control-item:hover {
    transform: translateY(-8px) rotateY(2deg);
    box-shadow: 
        0 20px 60px rgba(0, 122, 255, 0.15),
        0 8px 32px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

.control-item h4 {
    color: #007aff;
    margin-bottom: 24px;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.015em;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.control-item h4::before {
    content: '';
    width: 12px;
    height: 12px;
    background: radial-gradient(circle, #007aff 0%, #5ac8fa 100%);
    border-radius: 50%;
    box-shadow: 
        0 0 0 4px rgba(0, 122, 255, 0.1),
        0 2px 8px rgba(0, 122, 255, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.control-item ul {
    margin-left: 8px;
    position: relative;
    list-style: none;
    padding-left: 0;
}

.control-item ul::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #007aff 0%, rgba(0, 122, 255, 0.3) 100%);
    border-radius: 1px;
}

.control-item li {
    margin-bottom: 16px;
    color: #1d1d1f;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
    position: relative;
    padding-left: 16px;
}

.control-item li::before {
    content: '';
    position: absolute;
    left: -14px;
    top: 8px;
    width: 4px;
    height: 4px;
    transform: translateX(-50%);
}

/* Products */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.product-category {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 22px;
    border: 0.5px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

.product-category:hover {
    transform: translateY(-6px);
    box-shadow: 0 6px 40px rgba(0, 0, 0, 0.08);
}

.product-category h3 {
    color: #1d1d1f;
    margin-bottom: 24px;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.015em;
}

.product-category p {
    color: #86868b;
    margin-bottom: 16px;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
}

.product-category ul {
    margin-left: 20px;
}

.product-category li {
    margin-bottom: 8px;
    color: #1d1d1f;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
}

.flavors-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.flavor-tag {
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.1) 0%, rgba(0, 122, 255, 0.05) 100%);
    color: #007aff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 15px;
    font-weight: 500;
    border: 0.5px solid rgba(0, 122, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.2s ease;
}

.flavor-tag:hover {
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.15) 0%, rgba(0, 122, 255, 0.08) 100%);
    transform: translateY(-1px);
}

.specs {
    font-size: 21px;
    color: #007aff;
    font-weight: 700;
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.1) 0%, rgba(0, 122, 255, 0.05) 100%);
    padding: 24px;
    border-radius: 16px;
    text-align: center;
    border: 0.5px solid rgba(0, 122, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    letter-spacing: -0.015em;
}

.technologist-info {
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.06) 0%, rgba(0, 122, 255, 0.03) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 48px;
    border-radius: 20px;
    margin-top: 80px;
    text-align: center;
    border: 0.5px solid rgba(0, 122, 255, 0.1);
}

.technologist-info h3 {
    color: #1d1d1f;
    margin-bottom: 16px;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.015em;
}

.technologist-info p {
    color: #86868b;
    font-size: 19px;
    line-height: 1.47;
    font-weight: 400;
}

/* Logistics - Business Card 3D Design */
.logistics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
    margin-top: 60px;
    perspective: 1200px;
}

.logistics-item {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(250, 251, 255, 0.9) 100%);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    padding: 44px;
    border-radius: 24px;
    border: 1px solid rgba(255, 204, 0, 0.15);
    box-shadow: 
        0 12px 48px rgba(255, 204, 0, 0.08),
        0 4px 20px rgba(0, 0, 0, 0.04),
        inset 0 2px 0 rgba(255, 255, 255, 0.9),
        inset 0 -2px 0 rgba(255, 204, 0, 0.08);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    transform-style: preserve-3d;
}

.logistics-item::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #ffcc02, #ff9500, #ffcc02, #ff9500);
    background-size: 400% 400%;
    border-radius: 26px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
    animation: gradientShift 4s ease infinite;
}

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

.logistics-item:hover {
    transform: translateY(-12px) rotateX(5deg) rotateY(-2deg);
    box-shadow: 
        0 25px 70px rgba(255, 204, 0, 0.15),
        0 10px 40px rgba(0, 0, 0, 0.1),
        inset 0 2px 0 rgba(255, 255, 255, 0.95);
}

.logistics-item:hover::before {
    opacity: 0.6;
}

.logistics-item h3 {
    color: #1d1d1f;
    margin-bottom: 24px;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.015em;
    position: relative;
}

.logistics-item h3::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 3px;
    background: linear-gradient(90deg, #ff9500, #ffcc02);
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(255, 149, 0, 0.3);
}

.logistics-item p {
    color: #86868b;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
}

.logistics-item ul {
    text-align: left;
    margin-left: 0;
    margin-top: 20px;
    position: relative;
    list-style: none;
    padding-left: 0;
}

.logistics-item li {
    margin-bottom: 12px;
    color: #1d1d1f;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
    position: relative;
    padding-left: 12px;
}

.logistics-item li::before {
    content: '→';
    position: absolute;
    left: -8px;
    color: #ff9500;
    font-weight: bold;
    font-size: 14px;
}

/* Download Section */
.download-container {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 80px 48px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 0.5px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 8px 48px rgba(0, 0, 0, 0.06);
}

.download-container p {
    margin-bottom: 40px;
    font-size: 19px;
    color: #86868b;
    line-height: 1.47;
    font-weight: 400;
}

/* Contacts - Modern Glass 3D Design */
.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
    margin-top: 60px;
    perspective: 1500px;
}

.contact-item {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 255, 0.8) 100%);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    padding: 36px 28px;
    border-radius: 28px;
    border: 1px solid rgba(142, 142, 147, 0.12);
    box-shadow: 
        0 8px 32px rgba(142, 142, 147, 0.08),
        0 2px 12px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        inset 0 -1px 0 rgba(142, 142, 147, 0.1);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    transform-style: preserve-3d;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(142, 142, 147, 0.05) 0%, rgba(255, 255, 255, 0.1) 100%);
    border-radius: 28px;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.contact-item:hover {
    transform: translateY(-10px) rotateX(8deg) rotateY(-3deg);
    box-shadow: 
        0 20px 60px rgba(142, 142, 147, 0.15),
        0 8px 32px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.contact-item:hover::before {
    opacity: 1;
}

.contact-item h3 {
    color: #1d1d1f;
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.015em;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.contact-item:nth-child(1) h3::before {
    content: '';
    width: 18px;
    height: 18px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23007aff"><path d="M12 2C8.13 2 5 5.13 5 9c0 5.25 7 13 7 13s7-7.75 7-13c0-3.87-3.13-7-7-7zm0 9.5c-1.38 0-2.5-1.12-2.5-2.5s1.12-2.5 2.5-2.5 2.5 1.12 2.5 2.5-1.12 2.5-2.5 2.5z"/></svg>') no-repeat center;
    background-size: contain;
}

.contact-item:nth-child(2) h3::before {
    content: '';
    width: 18px;
    height: 18px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23007aff"><path d="M20 4H4c-1.1 0-1.99.9-1.99 2L2 18c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm0 4l-8 5-8-5V6l8 5 8-5v2z"/></svg>') no-repeat center;
    background-size: contain;
}

.contact-item:nth-child(3) h3::before {
    content: '';
    width: 18px;
    height: 18px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23007aff"><path d="M6.62 10.79c1.44 2.83 3.76 5.14 6.59 6.59l2.2-2.2c.27-.27.67-.36 1.02-.24 1.12.37 2.33.57 3.57.57.55 0 1 .45 1 1V20c0 .55-.45 1-1 1-9.39 0-17-7.61-17-17 0-.55.45-1 1-1h3.5c.55 0 1 .45 1 1 0 1.25.2 2.45.57 3.57.11.35.03.74-.25 1.02l-2.2 2.2z"/></svg>') no-repeat center;
    background-size: contain;
}

.contact-item:nth-child(4) h3::before {
    content: '';
    width: 18px;
    height: 18px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23007aff"><path d="M11.99 2C6.47 2 2 6.48 2 12s4.47 10 9.99 10C17.52 22 22 17.52 22 12S17.52 2 11.99 2zM12 20c-4.42 0-8-3.58-8-8s3.58-8 8-8 8 3.58 8 8-3.58 8-8 8z"/><path d="M12.5 7H11v6l5.25 3.15.75-1.23-4.5-2.67z"/></svg>') no-repeat center;
    background-size: contain;
}

.contact-item h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, #8e8e93, #c7c7cc);
    border-radius: 1px;
    opacity: 0.6;
}

.contact-item p {
    color: #86868b;
    font-size: 17px;
    line-height: 1.47;
    font-weight: 400;
    margin-bottom: 8px;
    position: relative;
}

.contact-item em {
    color: #86868b;
    font-style: italic;
    font-size: 17px;
    background: rgba(142, 142, 147, 0.06);
    padding: 8px 16px;
    border-radius: 12px;
    display: inline-block;
    border: 1px solid rgba(142, 142, 147, 0.1);
}

/* Footer */
.footer {
    background: linear-gradient(180deg, #1d1d1f 0%, #000000 100%);
    color: #f5f5f7;
    text-align: center;
    padding: 60px 0;
}

.footer p {
    font-size: 17px;
    font-weight: 400;
    color: #a1a1a6;
    letter-spacing: -0.022em;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 24px;
    }
    
    .nav-container {
        padding: 0 24px;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 24px;
    }
    
    .section h2 {
        font-size: 40px;
    }
    
    .section-intro {
        font-size: 19px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 21px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .section h2 {
        font-size: 32px;
    }
    
    .capabilities-grid,
    .equipment-grid,
    .advantages-grid,
    .products-grid,
    .logistics-grid,
    .contacts-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .control-schedule {
        grid-template-columns: 1fr;
    }
    
    .capability-card,
    .equipment-item,
    .quality-item,
    .product-category,
    .logistics-item,
    .contact-item {
        padding: 32px 24px;
    }
    
    .download-container {
        padding: 60px 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
    
    .nav-container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 19px;
    }
    
    .company-logo {
        height: 80px;
    }
    
    .section h2 {
        font-size: 28px;
    }
    
    .section-intro {
        font-size: 17px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .capability-card,
    .equipment-item,
    .quality-item,
    .product-category,
    .logistics-item,
    .contact-item,
    .advantage,
    .test-category,
    .control-item {
        padding: 24px 20px;
    }
    
    .download-container {
        padding: 40px 24px;
    }
    
    .technologist-info {
        padding: 32px 24px;
    }
}

/* Smooth transitions and animations */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
    
    .capability-card,
    .equipment-item,
    .quality-item,
    .product-category,
    .logistics-item,
    .contact-item,
    .advantage,
    .test-category,
    .control-item {
        animation: fadeInUp 0.6s ease-out forwards;
        opacity: 0;
        transform: translateY(30px);
    }
    
    .capability-card:nth-child(1) { animation-delay: 0.1s; }
    .capability-card:nth-child(2) { animation-delay: 0.2s; }
    .capability-card:nth-child(3) { animation-delay: 0.3s; }
    .capability-card:nth-child(4) { animation-delay: 0.4s; }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Print styles */
@media print {
    .navbar,
    .hero-buttons,
    .btn {
        display: none;
    }
    
    .section {
        padding: 40px 0;
        break-inside: avoid;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000;
    }
    
    h1, h2, h3 {
        page-break-after: avoid;
        color: #000;
    }
    
    .hero {
        min-height: auto;
        padding: 40px 0;
    }
}
#about {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.4)),
        url("3K9A2930.jpg");
    background-size: cover;
    background-position: center;
}
#production {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.4)),
        url("3K9A2152.jpg");
    background-size: cover;
    background-position: center;
}
#production p.section-intro {
    color: #1d1d1d;
}
#equipment {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.763), rgba(0, 0, 0, 0.4)),
        url("3K9A2131.jpg");
    background-size: cover;
    background-position: center;
}
#equipment p.section-intro {
    color: #1d1d1d;
}
#quality {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.763), rgba(255, 255, 255, 0.73)),
        url("3K9A2329.jpg");
    background-size: cover;
    background-position: center;
}
#quality p.section-intro {
    color: #1d1d1d;
}
#products {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.763), rgba(255, 255, 255, 0.73)),
        url("3K9A2366.jpg");
    background-size: cover;
    background-position: center;
}
#products p.section-intro {
    color: #1d1d1d;
}
#logistics {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.226), rgba(255, 255, 255, 0.73)),
        url("3K9A2729.jpg");
    background-size: cover;
    background-position: center;
}
#logistics p.section-intro {
    color: #1d1d1d;
}
#pdf-download {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0), rgb(255, 255, 255)),
        url("3K9A2660.jpg");
    background-size: cover;
    background-position: center;
}
#pdf-download p.section-intro {
    color: #1d1d1d;
}