:root {
    --primary-color: #0066ff;
    --primary-light: #3385ff;
    --primary-dark: #0052cc;
    --secondary-color: #0a2540;
    --accent-color: #00d4ff;
    --accent-orange: #ff6b35;
    --text-dark: #1a1a2e;
    --text-light: #5a6a7a;
    --text-muted: #8a9aaa;
    --text-white: #ffffff;
    --bg-light: #f5f8fc;
    --bg-white: #ffffff;
    --bg-gradient: linear-gradient(135deg, #f5f8fc 0%, #e8f0f8 100%);
    --shadow-sm: 0 4px 15px rgba(0, 40, 100, 0.1);
    --shadow-md: 0 8px 30px rgba(0, 40, 100, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 40, 100, 0.2);
    --shadow-hover: 0 20px 50px rgba(0, 40, 100, 0.25);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --container-width: 1200px;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 6px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    width: 95px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.3);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 102, 255, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: var(--text-white);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--text-white);
    color: var(--primary-color);
    border-color: var(--text-white);
}

.section-title {
    text-align: center;
    margin-bottom: 75px;
}

.section-title h2 {
    font-size: 42px;
    font-weight: 900;
    color: var(--secondary-color);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    letter-spacing: -1px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 20px auto 0;
    line-height: 1.7;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 37, 64, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 37, 64, 0.98);
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 22px;
    font-weight: 700;
    color: var(--text-white);
}

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

.nav a {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    position: relative;
    padding: 8px 0;
    letter-spacing: 0.3px;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 2px;
}

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

.nav a:hover,
.nav a.active {
    color: var(--text-white);
}

.mobile-menu-btn {
    display: none;
    font-size: 26px;
    cursor: pointer;
    color: var(--text-white);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a2540 0%, #153d5f 30%, #1a4a6e 70%, #0d2840 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 106, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 40% 40%, rgba(0, 106, 255, 0.12) 0%, transparent 30%);
    animation: heroGlow 15s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.02)" stroke-width="0.5"/></svg>') repeat;
    background-size: 60px 60px;
    pointer-events: none;
}

@keyframes heroGlow {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, 2%) rotate(1deg); }
    66% { transform: translate(-1%, 1%) rotate(-1deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 850px;
    color: var(--text-white);
}

.hero h1 {
    font-size: 62px;
    font-weight: 900;
    line-height: 1.12;
    margin-bottom: 28px;
    letter-spacing: -1.5px;
    text-shadow: 0 6px 40px rgba(0, 0, 0, 0.4), 0 0 60px rgba(0, 106, 255, 0.2);
}

.hero h1 span {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.8;
    max-width: 600px;
}

.hero-btns {
    display: inline-flex;
    gap: 10px;
    flex-wrap: nowrap;
}

.hero-phone {
    margin-top: 30px;
    font-size: 18px;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-phone span {
    color: rgba(255, 255, 255, 0.8);
}

.hero-phone a {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 24px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.hero-scroll span {
    display: block;
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(255, 255, 255, 0.5);
    border-bottom: 2px solid rgba(255, 255, 255, 0.5);
    transform: rotate(45deg);
}

/* About Section */
.about-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #f5f8fc 0%, #eef5ff 50%, #f5f8fc 100%);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

/* Three-Column Card Layout */
.about-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 20px;
}

.about-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 35px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 40, 100, 0.08);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.about-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    border-color: rgba(0, 102, 255, 0.2);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid rgba(0, 40, 100, 0.08);
}

.card-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 212, 255, 0.1));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.card-header h3 {
    font-size: 22px;
    color: var(--secondary-color);
    font-weight: 800;
    margin: 0;
}

.card-content {
    flex: 1;
}

/* Company Card */
.company-card p {
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 18px;
    font-size: 15px;
}

.company-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.company-tags .tag {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.08), rgba(0, 212, 255, 0.08));
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid rgba(0, 102, 255, 0.15);
}

/* Advantage Card */
.advantage-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.advantage-list-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.list-icon {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 2px;
}

.advantage-list-item h4 {
    font-size: 17px;
    color: var(--secondary-color);
    font-weight: 700;
    margin-bottom: 6px;
}

.advantage-list-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* Stats Card */
.stats-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stats-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 18px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.03), rgba(0, 212, 255, 0.03));
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 102, 255, 0.08);
    transition: var(--transition);
}

.stats-item:hover {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.06), rgba(0, 212, 255, 0.06));
    transform: translateX(5px);
    border-color: rgba(0, 102, 255, 0.15);
}

.stat-number {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 90px;
    flex-shrink: 0;
}

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

.stat-label {
    font-size: 16px;
    color: var(--secondary-color);
    font-weight: 700;
    margin-bottom: 4px;
}

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

/* Services Section */
.services-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--bg-white);
    padding: 45px 35px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid rgba(0, 40, 100, 0.08);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-hover);
    transform: translateY(-10px);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card .icon {
    width: 75px;
    height: 75px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.12), rgba(0, 212, 255, 0.12));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.15);
}

.service-card .icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--primary-color);
    stroke-width: 1.5;
    fill: none;
    transition: var(--transition);
}

.service-card:hover .icon svg {
    stroke: white;
}

.service-card:hover .icon {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 14px;
    color: var(--secondary-color);
    font-weight: 800;
}

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

/* Products Section */
.products-section {
    padding: 100px 0;
    background: var(--bg-white);
}

/* Cases Section */
.cases-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
}

.case-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 40, 100, 0.08);
}

.case-card:hover {
    transform: translateY(-14px);
    box-shadow: var(--shadow-hover);
}

.case-image {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
}

.case-info {
    padding: 35px;
}

.case-info h3 {
    font-size: 24px;
    margin-bottom: 14px;
    color: var(--secondary-color);
    font-weight: 800;
}

.case-info p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.8;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
}

.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 40, 100, 0.08);
}

.product-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(to top, rgba(0,0,0,0.2), transparent);
}

.product-info {
    padding: 35px;
}

.product-info h3 {
    font-size: 24px;
    margin-bottom: 14px;
    color: var(--secondary-color);
    font-weight: 800;
}

.product-info p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 22px;
}

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

.product-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.product-tags .tag {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.12), rgba(0, 212, 255, 0.12));
    color: var(--primary-color);
    padding: 7px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    border: 1px solid rgba(0, 102, 255, 0.25);
}

/* Contact Section */
.contact-section {
    padding: 120px 0;
    background: var(--bg-gradient);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 35px;
    padding: 28px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 40, 100, 0.08);
}

.contact-info-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: rgba(0, 102, 255, 0.2);
}

.contact-info-item .icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
    flex-shrink: 0;
}

.contact-info-item h4 {
    font-size: 18px;
    margin-bottom: 6px;
    color: var(--secondary-color);
    font-weight: 700;
}

.contact-info-item p {
    color: var(--text-light);
    font-size: 15px;
}

.contact-qrcode {
    background: var(--bg-white);
    padding: 60px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid rgba(0, 40, 100, 0.08);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.contact-qrcode:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.contact-qrcode h3 {
    margin-bottom: 25px;
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 22px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--bg-light);
    border: 1px solid #ddd;
    border-radius: 8px;
    color: var(--text-dark);
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #999;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #081d30 0%, #0a2540 30%, #153d5f 100%);
    color: rgba(255, 255, 255, 0.8);
    padding: 90px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.3), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand h3 {
    font-size: 26px;
    color: var(--text-white);
    margin-bottom: 20px;
    font-weight: 700;
}

.footer-brand p {
    line-height: 1.9;
    margin-bottom: 0;
    font-size: 15px;
}

.footer-links h4 {
    color: var(--text-white);
    font-size: 18px;
    margin-bottom: 25px;
    font-weight: 700;
}

.footer-links ul li {
    margin-bottom: 16px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.65);
}

.footer-bottom a:hover {
    color: var(--accent-color);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    border: none;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--accent-color));
    transform: translateY(-6px) scale(1.05);
    box-shadow: var(--shadow-hover);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Responsive */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 42px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .section-title {
        margin-bottom: 50px;
    }
    
    .section-title h2 {
        font-size: 32px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .about-cards {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .services-grid,
    .products-grid,
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 70px;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 37, 64, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 25px 20px;
        box-shadow: var(--shadow-md);
        gap: 0;
    }
    
    .nav a {
        padding: 15px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding-top: 70px;
    }
    
    .hero h1 {
        font-size: 30px;
        letter-spacing: -0.5px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .hero-phone {
        font-size: 16px;
    }
    
    .hero-phone a {
        font-size: 22px;
    }
    
    .hero-btns {
        flex-direction: column;
        gap: 15px;
    }
    
    .section-title {
        margin-bottom: 40px;
    }
    
    .section-title h2 {
        font-size: 26px;
    }
    
    .section-title p {
        font-size: 15px;
    }
    
    .services-grid,
    .products-grid,
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .about-cards {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 35px;
    }
    
    .footer-brand h3 {
        font-size: 22px;
    }
    
    .cases-section,
    .products-section,
    .services-section,
    .about-section,
    .contact-section {
        padding: 70px 0;
    }
}