/* ===== CSS Variables ===== */
:root {
    --primary: #1a56db;
    --primary-light: #3b82f6;
    --primary-dark: #1e3a8a;
    --secondary: #10b981;
    --accent: #f59e0b;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --gray-lighter: #e2e8f0;
    --white: #ffffff;
    --bg: #f8fafc;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    color: var(--dark);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    padding: 8px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--white);
    z-index: 1001;
}

.navbar.scrolled .nav-logo {
    color: var(--dark);
}

.logo-img {
    width: 44px;
    height: 44px;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.15);
}

.navbar.scrolled .nav-link {
    color: var(--gray);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
    color: var(--primary);
    background: rgba(26, 86, 219, 0.08);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.navbar.scrolled .nav-toggle span {
    background: var(--dark);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1a56db 100%);
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-bg-animation {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.particle-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-light);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.particle-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -50px;
    left: -50px;
    animation-delay: -5s;
}

.particle-3 {
    width: 200px;
    height: 200px;
    background: var(--accent);
    top: 50%;
    left: 20%;
    animation-delay: -10s;
}

.particle-4 {
    width: 150px;
    height: 150px;
    background: var(--primary-light);
    top: 30%;
    right: 20%;
    animation-delay: -15s;
}

.particle-5 {
    width: 250px;
    height: 250px;
    background: var(--secondary);
    bottom: 20%;
    right: 10%;
    animation-delay: -7s;
}

.particle-6 {
    width: 180px;
    height: 180px;
    background: var(--accent);
    top: 10%;
    left: 40%;
    animation-delay: -12s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(20px, 10px) scale(1.05); }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-logo-showcase {
    margin-bottom: 40px;
}

.logo-main {
    display: inline-block;
    margin-bottom: 20px;
}

.hero-logo-img {
    width: 180px;
    height: 180px;
    border-radius: 24px;
    margin: 0 auto;
    animation: logoFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.logo-variants {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.logo-variant {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    opacity: 0.7;
    transition: var(--transition);
}

.logo-variant:hover {
    opacity: 1;
    transform: scale(1.1);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    color: var(--white);
    margin-bottom: 24px;
    line-height: 1.2;
}

.title-line {
    display: inline-block;
}

.title-dot {
    color: var(--accent);
    margin: 0 8px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.75);
    max-width: 650px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    font-family: var(--font);
}

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

.btn-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(26, 86, 219, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.4);
}

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

.btn-full {
    width: 100%;
    justify-content: center;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 32px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--white);
    display: inline;
}

.stat-plus {
    font-size: 1.5rem;
    color: var(--accent);
    font-weight: 700;
}

.stat-label {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-top: 4px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 3px;
    height: 8px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 1.5s infinite;
}

@keyframes scrollWheel {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(10px); }
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Section Common ===== */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
}

.title-decoration {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
    margin: 0 auto;
}

.section-desc {
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 16px auto 0;
}

/* ===== About Section ===== */
.about {
    background: var(--bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-heading {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
}

.about-text {
    color: var(--gray);
    font-size: 1.05rem;
    margin-bottom: 16px;
    line-height: 1.9;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--white);
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.95rem;
    box-shadow: var(--shadow);
}

.feature-item i {
    color: var(--primary);
    font-size: 1.1rem;
}

.about-card-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-card {
    padding: 32px;
    border-radius: var(--radius-lg);
    background: var(--white);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border-left: 4px solid;
}

.about-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-xl);
}

.card-1 { border-color: var(--primary); }
.card-2 { border-color: var(--secondary); }
.card-3 { border-color: var(--accent); }

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.card-1 .card-icon { background: rgba(26, 86, 219, 0.1); color: var(--primary); }
.card-2 .card-icon { background: rgba(16, 185, 129, 0.1); color: var(--secondary); }
.card-3 .card-icon { background: rgba(245, 158, 11, 0.1); color: var(--accent); }

.about-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.about-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* ===== Services Section ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    background: var(--white);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--gray-lighter);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.service-icon-wrap {
    position: relative;
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
}

.service-icon-wrap i {
    position: relative;
    z-index: 1;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    font-size: 1.5rem;
}

.service-icon-bg {
    position: absolute;
    inset: -4px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    opacity: 0.15;
}

.service-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.service-desc {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.8;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray);
}

.service-list li i {
    color: var(--secondary);
    font-size: 0.8rem;
}

/* ===== Cases Section ===== */
.cases {
    background: var(--bg);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.case-card {
    border-radius: var(--radius-lg);
    background: var(--white);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.case-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: rgba(255, 255, 255, 0.3);
    font-size: 4rem;
}

.case-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
    display: flex;
    align-items: flex-end;
    padding: 16px;
}

.case-category {
    padding: 6px 14px;
    background: var(--primary);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.case-content {
    padding: 24px;
}

.case-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.case-content p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 16px;
    line-height: 1.7;
}

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

.case-tags span {
    padding: 4px 12px;
    background: var(--bg);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--gray);
    font-weight: 500;
}

/* ===== News Section ===== */
.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 28px;
}

.news-card {
    border-radius: var(--radius-lg);
    background: var(--white);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-lighter);
}

.news-featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-featured .news-image {
    height: auto;
    min-height: 280px;
}

.news-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b, #334155);
    color: rgba(255, 255, 255, 0.2);
    font-size: 3rem;
}

.news-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 4px 14px;
    background: var(--accent);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.news-content {
    padding: 24px;
}

.news-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 0.85rem;
    color: var(--gray-light);
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-content p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.news-link:hover {
    gap: 10px;
    color: var(--primary-dark);
}

/* ===== Contact Section ===== */
.contact {
    background: var(--bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
}

.contact-info-card {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    border-radius: var(--radius-lg);
    padding: 40px;
    color: var(--white);
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.contact-item h4 {
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.8;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 1rem;
    font-weight: 600;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-lighter);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: var(--font);
    color: var(--dark);
    transition: var(--transition);
    background: var(--bg);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
}

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

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    margin-bottom: 16px;
}

.footer-brand-desc {
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    color: var(--white);
}

.footer-links h4 {
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
}

.footer-contact li i {
    margin-top: 4px;
    color: var(--primary-light);
}

.footer-bottom {
    padding: 24px 0;
}

.footer-bottom-content {
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
    font-size: 0.75rem !important;
    color: rgba(255, 255, 255, 0.35) !important;
    max-width: 700px;
    margin: 8px auto;
    line-height: 1.6;
}

.footer-bottom-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 12px;
}

.footer-bottom-links a {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
}

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

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 24px 24px;
        box-shadow: var(--shadow-xl);
        transition: right 0.3s ease;
        gap: 4px;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu .nav-link {
        color: var(--dark);
        padding: 12px 16px;
        width: 100%;
    }

    .nav-menu .nav-link:hover,
    .nav-menu .nav-link.active {
        color: var(--primary);
        background: rgba(26, 86, 219, 0.08);
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .stat-number {
        font-size: 2rem;
    }

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

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

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

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

    .news-featured {
        grid-template-columns: 1fr;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-logo-img {
        width: 140px;
        height: 140px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

    .hero-stats {
        grid-template-columns: 1fr 1fr;
        padding: 20px;
    }

    .contact-info-card,
    .contact-form-wrap {
        padding: 24px;
    }
}