/* ===============================================
   CleanPro - Global Stylesheet
   Industrial Cleaning Equipment E-Commerce
   =============================================== */

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

:root {
    --primary: #0066cc;
    --primary-dark: #004c99;
    --primary-light: #e6f0ff;
    --secondary: #00a86b;
    --accent: #ff6b35;
    --dark: #1a1a2e;
    --gray-900: #16213e;
    --gray-700: #333333;
    --gray-500: #666666;
    --gray-300: #999999;
    --gray-100: #f0f0f0;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
    --max-width: 1200px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--gray-700);
    line-height: 1.6;
    background: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
}

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

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

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-danger {
    background: #dc3545;
    color: var(--white);
}

.btn-danger:hover {
    background: #c82333;
}

/* === Section Titles === */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.section-subtitle {
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

/* === Navbar === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-menu a {
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
    position: relative;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-switcher {
    display: flex;
    gap: 0.25rem;
}

.lang-btn {
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--gray-300);
    background: var(--white);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: var(--transition);
}

.lang-btn.active,
.lang-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.cart-icon {
    position: relative;
    font-size: 1.5rem;
    transition: var(--transition);
}

.cart-icon:hover {
    transform: scale(1.1);
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    border-radius: 3px;
    transition: var(--transition);
}

/* === Hero Section === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--gray-900) 50%, var(--primary-dark) 100%);
    overflow: hidden;
    padding-top: 70px;
}

.hero::before {
    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 1440 320"><path fill="%230066cc" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,112C1248,107,1344,117,1392,122.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom center;
    background-size: cover;
    opacity: 0.5;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    padding: 2rem;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

/* === Features Section === */
.features {
    padding: 5rem 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    background: var(--white);
    border: 1px solid var(--gray-100);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--dark);
}

/* === Product Categories === */
.product-categories {
    padding: 5rem 0;
    background: var(--gray-100);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.category-card {
    display: block;
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.category-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.category-card p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

/* === Featured Products === */
.featured-products {
    padding: 5rem 0;
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

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

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.product-image {
    width: 100%;
    height: 220px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--accent);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.product-info p {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

.product-actions {
    display: flex;
    gap: 0.5rem;
}

.product-actions .btn {
    flex: 1;
    padding: 0.5rem;
    font-size: 0.9rem;
}

/* === Solutions Preview === */
.solutions-preview {
    padding: 5rem 0;
    background: var(--gray-100);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.solution-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.solution-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.solution-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.75rem;
}

.solution-card p {
    color: var(--gray-500);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.link-arrow {
    color: var(--primary);
    font-weight: 600;
    transition: var(--transition);
}

.link-arrow:hover {
    color: var(--primary-dark);
}

/* === Testimonials === */
.testimonials {
    padding: 5rem 0;
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--gray-100);
    padding: 2rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
}

.stars {
    color: #ffc107;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--gray-700);
    line-height: 1.7;
}

.testimonial-author strong {
    display: block;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.testimonial-author span {
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* === CTA Section === */
.cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* === Footer === */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-col h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-col p {
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-col ul a {
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}

.footer-col ul a:hover {
    color: var(--white);
}

.footer-col ul li {
    color: rgba(255,255,255,0.7);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* === Products Page === */
.page-hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--gray-900) 100%);
    color: var(--white);
    text-align: center;
}

.page-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-hero p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.products-section {
    padding: 3rem 0 5rem;
}

.filters {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    border: 2px solid var(--gray-300);
    background: var(--white);
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* === Solutions Page === */
.solutions-section {
    padding: 3rem 0 5rem;
}

.solution-detail {
    margin-bottom: 4rem;
    padding: 2.5rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.solution-detail h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1rem;
}

.solution-detail p {
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.solution-detail ul {
    list-style: disc;
    padding-left: 1.5rem;
    color: var(--gray-700);
}

.solution-detail ul li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

/* === About Page === */
.about-section {
    padding: 3rem 0 5rem;
}

.about-intro {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
}

.about-intro h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.about-intro p {
    color: var(--gray-500);
    line-height: 1.8;
    font-size: 1.05rem;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.advantage-card {
    text-align: center;
    padding: 2rem;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.advantage-card:hover {
    background: var(--primary-light);
}

.advantage-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.advantage-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.75rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
    text-align: center;
}

.stat-card {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    display: block;
}

.stat-label {
    color: var(--gray-500);
    font-size: 1rem;
}

/* === Contact Page === */
.contact-section {
    padding: 3rem 0 5rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.contact-info h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.contact-info p {
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item .icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item h4 {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.contact-form h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-100);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

/* === Cart Page === */
.cart-section {
    padding: 120px 0 5rem;
    min-height: 80vh;
}

.cart-empty {
    text-align: center;
    padding: 4rem 2rem;
}

.cart-empty .icon {
    font-size: 5rem;
    margin-bottom: 1.5rem;
}

.cart-empty h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1rem;
}

.cart-empty p {
    color: var(--gray-500);
    margin-bottom: 2rem;
}

.cart-items {
    margin-bottom: 2rem;
}

.cart-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1rem;
}

.cart-item-image {
    width: 100px;
    height: 100px;
    background: var(--gray-100);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    flex-shrink: 0;
}

.cart-item-details {
    flex: 1;
}

.cart-item-details h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.cart-item-details .price {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.1rem;
}

.qty-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.qty-btn {
    width: 32px;
    height: 32px;
    border: 2px solid var(--gray-300);
    background: var(--white);
    border-radius: 50%;
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.qty-display {
    font-weight: 700;
    min-width: 30px;
    text-align: center;
}

.cart-item-remove {
    background: none;
    border: none;
    color: #dc3545;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

.cart-item-remove:hover {
    color: #c82333;
}

.cart-summary {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.cart-summary h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
}

.summary-row.total {
    border-bottom: none;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    padding-top: 1rem;
}

.checkout-btn {
    width: 100%;
    margin-top: 1.5rem;
    padding: 1rem;
    font-size: 1.1rem;
}

/* === Toast Notification === */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--dark);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    transform: translateY(150%);
    transition: transform 0.3s ease;
    max-width: 350px;
}

.toast.show {
    transform: translateY(0);
}

/* === Scroll Animations === */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

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

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

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

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

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

    .cart-item-image {
        width: 120px;
        height: 120px;
    }

    .qty-controls {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* === Social Follow/Share Buttons === */
.social-follow-bar {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    color: white;
}

.social-btn.fb-btn { background: #1877F2; }
.social-btn.fb-btn:hover { background: #166FE5; transform: translateY(-1px); }
.social-btn.tt-btn { background: #000000; }
.social-btn.tt-btn:hover { background: #333333; transform: translateY(-1px); }
.social-btn.ig-btn { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.social-btn.ig-btn:hover { transform: translateY(-1px); }

.share-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.share-bar span {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: 20px;
    background: var(--white);
    color: var(--gray-700);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.share-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.share-btn svg { width: 14px; height: 14px; }

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

/* ================================================
   FLOATING CONTACT BAR (留资悬浮按钮)
   ================================================ */
.float-contact-bar {
    position: fixed;
    right: 20px;
    bottom: 80px;
    z-index: 9990;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-end;
}

.float-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 50px;
    background: #fff;
    box-shadow: 0 4px 16px rgba(0,0,0,0.18);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: #333;
    text-decoration: none;
    transition: all 0.25s ease;
    white-space: nowrap;
    border: none;
    max-width: 180px;
    overflow: hidden;
}

.float-btn:hover {
    transform: translateX(-4px);
    box-shadow: 0 6px 24px rgba(0,0,0,0.22);
}

.float-btn .fb-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 18px;
    color: #fff;
}

.float-btn.whatsapp-btn .fb-icon { background: #25D366; }
.float-btn.email-btn .fb-icon { background: #EA4335; }
.float-btn.wechat-btn .fb-icon { background: #07C160; }
.float-btn.form-btn .fb-icon { background: var(--primary); }

.float-btn .fb-label { font-size: 12px; color: #555; font-weight: 600; }

/* Toggle button */
.float-toggle-btn {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 9999;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0,102,204,0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    transition: all 0.25s ease;
}

.float-toggle-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.08);
}

.float-contact-bar.collapsed {
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
    transition: all 0.25s ease;
}

.float-contact-bar.visible {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
    transition: all 0.25s ease;
}

/* WeChat QR modal */
.wechat-modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.wechat-modal.active {
    opacity: 1;
    pointer-events: all;
}

.wechat-modal-inner {
    background: #fff;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    max-width: 300px;
    width: 90%;
    position: relative;
    box-shadow: 0 8px 40px rgba(0,0,0,0.25);
}

.wechat-modal-inner h3 { font-size: 16px; margin-bottom: 8px; color: #222; }
.wechat-modal-inner p { font-size: 13px; color: #666; margin-bottom: 16px; }
.wechat-qr-img { width: 160px; height: 160px; border-radius: 8px; border: 1px solid #eee; margin: 0 auto 16px; object-fit: contain; background: #f5f5f5; display: flex; align-items: center; justify-content: center; font-size: 40px; }
.wechat-modal-close { position: absolute; top: 12px; right: 16px; font-size: 20px; cursor: pointer; color: #999; border: none; background: none; }

/* Inquiry modal */
.inquiry-modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.inquiry-modal.active {
    opacity: 1;
    pointer-events: all;
}

.inquiry-modal-inner {
    background: #fff;
    border-radius: 16px;
    padding: 28px;
    max-width: 480px;
    width: 94%;
    position: relative;
    box-shadow: 0 8px 40px rgba(0,0,0,0.25);
    max-height: 90vh;
    overflow-y: auto;
}

.inquiry-modal-inner h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; color: #222; }
.inquiry-modal-inner p { font-size: 13px; color: #666; margin-bottom: 20px; }
.inquiry-modal-close { position: absolute; top: 14px; right: 18px; font-size: 22px; cursor: pointer; color: #999; border: none; background: none; }
.inquiry-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.inquiry-form .form-group { margin-bottom: 12px; }
.inquiry-form label { display: block; font-size: 12px; font-weight: 600; color: #444; margin-bottom: 4px; }
.inquiry-form input, .inquiry-form textarea, .inquiry-form select {
    width: 100%; padding: 9px 12px; border: 1px solid #ddd; border-radius: 8px;
    font-size: 13px; color: #333; background: #fafafa; transition: border-color 0.2s;
}
.inquiry-form input:focus, .inquiry-form textarea:focus, .inquiry-form select:focus {
    outline: none; border-color: var(--primary); background: #fff;
}
.inquiry-form textarea { resize: vertical; min-height: 80px; }
.inquiry-submit-btn {
    width: 100%; padding: 12px; background: var(--primary); color: #fff;
    border: none; border-radius: 8px; font-size: 15px; font-weight: 700;
    cursor: pointer; transition: background 0.2s;
}
.inquiry-submit-btn:hover { background: var(--primary-dark); }

/* ================================================
   SOCIAL ICONS - Footer & Follow Bar
   ================================================ */
.social-icons-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.social-icon-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.85);
    transition: all 0.2s;
    text-decoration: none;
}

.social-icon-link:hover {
    background: rgba(255,255,255,0.25);
    color: #fff;
    transform: scale(1.15);
    z-index: 2;
}

.social-icon-link svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* WeChat Channels (视频号) icon uses the official Channels PNG logo */
.social-channel-icon {
    background: transparent;
    padding: 0;
    overflow: hidden;
}

.social-channel-img {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    object-fit: contain;
    display: block;
}

/* Footer social label */
.footer-social-label {
    font-size: 11px;
    color: rgba(255,255,255,0.5);
    margin-top: 10px;
    display: block;
}

@media (max-width: 768px) {
    .float-contact-bar { right: 12px; bottom: 72px; }
    .float-toggle-btn { right: 12px; bottom: 12px; }
    .float-btn { padding: 8px 12px; font-size: 12px; }
    .float-btn .fb-icon { width: 30px; height: 30px; font-size: 15px; }
    .inquiry-form .form-row { grid-template-columns: 1fr; }
}