/* ===================================
   Conglong Website - Main Stylesheet
   =================================== */

/* CSS Variables */
:root {
    --primary-color: #0066cc;
    --primary-dark: #004c99;
    --secondary-color: #ff6600;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #f5f7fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 5px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

/* ===================================
   Privacy Policy Page Styles
   =================================== */

.privacy-content {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
}

.privacy-content h2 {
    color: var(--primary-color);
    margin: 30px 0 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
    font-size: 1.5rem;
}

.privacy-content h2:first-child {
    margin-top: 0;
}

.privacy-content p {
    margin-bottom: 15px;
    color: var(--text-color);
}

.privacy-content ul {
    margin: 15px 0;
    padding-left: 25px;
    list-style-type: disc;
}

.privacy-content ul li {
    margin-bottom: 8px;
    color: var(--text-light);
}

.privacy-content strong {
    color: var(--text-color);
    font-weight: 600;
}

.gdpr-notice {
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    padding: 20px 25px;
    margin: 30px 0;
    border-radius: 0 8px 8px 0;
}

.gdpr-notice h2 {
    margin-top: 0;
    border-bottom: none;
    color: var(--primary-dark);
}

.gdpr-notice ul {
    margin-bottom: 0;
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

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

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

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

.btn-secondary:hover {
    background-color: #e65c00;
}

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

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

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Section Styles */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 50px;
}

/* Header */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo a {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-subtitle {
    font-size: 0.8rem;
    color: var(--text-light);
}

.nav ul {
    display: flex;
    gap: 30px;
}

.nav a {
    font-weight: 500;
    color: var(--text-color);
    padding: 5px 0;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 700px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.85) 0%, rgba(0, 76, 153, 0.85) 100%), url("../images/qingdao-port-banner.jpg");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-banner {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.2);
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.5rem;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 80px 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-buttons .btn-outline {
    border-color: white;
    color: white;
}

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

.hero-features {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.hero-features .feature {
    display: flex;
    align-items: center;
    gap: 8px;
}

.feature-icon {
    color: var(--secondary-color);
    font-weight: bold;
}

/* Product Cards */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.product-card-image {
    height: 200px;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    color: var(--text-light);
    text-align: center;
    padding: 20px;
}

.product-card {
    padding: 25px;
}

.product-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.product-card p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.product-features {
    margin-bottom: 20px;
}

.product-features li {
    padding: 5px 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.product-features li:before {
    content: "✓ ";
    color: var(--success-color);
    font-weight: bold;
}

/* Why Section */
.why-section {
    background-color: var(--bg-light);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.why-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
}

.why-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.why-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.why-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Export Section */
.export-section {
    background-color: var(--bg-light);
}

.map-placeholder {
    background: var(--bg-white);
    padding: 60px;
    border-radius: 10px;
    text-align: center;
    color: var(--text-light);
}

.export-regions {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.export-regions li {
    padding: 10px 20px;
    background: var(--bg-light);
    border-radius: 5px;
}

/* Certifications */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.cert-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
}

.cert-placeholder {
    width: 100px;
    height: 100px;
    margin: 0 auto 15px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.cert-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.85) 0%, rgba(0, 76, 153, 0.85) 100%), url("../images/qingdao-port-banner.jpg");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    text-align: center;
}

.cta-section .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.cta-section .btn-outline {
    border-color: white;
    color: white;
}

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

/* Inquiry Form */
.inquiry-form-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
}

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

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

.inquiry-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

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

.inquiry-form textarea {
    resize: vertical;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input {
    width: auto;
    margin-top: 4px;
}

.form-note {
    text-align: center;
    color: var(--text-light);
    font-size: 0.85rem;
    margin-top: 15px;
}

/* Footer */
.footer {
    background-color: #1a1a2e;
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: white;
}

.footer p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer ul li {
    margin-bottom: 10px;
}

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

.footer ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    margin: 0 10px;
}

.footer-bottom a:hover {
    color: white;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.85) 0%, rgba(0, 76, 153, 0.85) 100%), url("../images/qingdao-port-banner.jpg");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    padding: 80px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Product List */
.product-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.product-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    background: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.product-item-image {
    height: 250px;
    background: var(--bg-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-item-info h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.product-code {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.product-specs {
    margin: 20px 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.product-specs li {
    font-size: 0.9rem;
    color: var(--text-light);
}

.product-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

/* Product Filter */
.product-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

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

/* Custom Solutions */
.custom-solutions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.custom-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
}

.custom-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.custom-card ul {
    margin-top: 15px;
}

.custom-card li {
    padding: 5px 0;
    color: var(--text-light);
}

.custom-card li:before {
    content: "• ";
    color: var(--primary-color);
}

.section-cta {
    text-align: center;
    background: var(--bg-light);
    padding: 40px;
    border-radius: 10px;
}

.section-cta h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* Comparison Table */
.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    box-shadow: var(--shadow);
    border-radius: 10px;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
}

.comparison-table tr:hover {
    background: var(--bg-light);
}

/* About Page */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image {
    height: 400px;
    background: var(--bg-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-card {
    background: var(--primary-color);
    color: white;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Business Model */
.business-model {
    background: var(--bg-light);
}

.model-content {
    max-width: 1000px;
    margin: 0 auto;
}

.model-text {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.model-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.benefit-card {
    background: var(--bg-white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.benefit-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.benefit-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Process Steps */
.process-steps {
    max-width: 800px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: 25px;
    margin-bottom: 40px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-light);
}

/* Certs List */
.certs-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.cert-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 10px;
}

.cert-item .cert-placeholder {
    margin-bottom: 20px;
}

/* Export Grid */
.export-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.export-region {
    background: var(--bg-light);
    padding: 25px;
    border-radius: 10px;
}

.export-region h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.export-region ul li {
    padding: 5px 0;
    color: var(--text-light);
}

/* QC Page */
.qc-overview {
    background: var(--bg-light);
}

.qc-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

.qc-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.qc-stage {
    background: var(--bg-white);
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    min-width: 200px;
}

.stage-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.qc-arrow {
    font-size: 2rem;
    color: var(--primary-color);
}

.qc-detail {
    border-bottom: 1px solid var(--border-color);
}

.qc-detail:last-child {
    border-bottom: none;
}

.qc-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.qc-detail-grid.reverse {
    direction: rtl;
}

.qc-detail-grid.reverse > * {
    direction: ltr;
}

.qc-detail-image {
    height: 300px;
    background: var(--bg-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qc-detail-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.qc-detail-content ul {
    margin-bottom: 25px;
}

.qc-detail-content li {
    padding: 8px 0;
    color: var(--text-light);
}

/* Equipment Grid */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.equipment-card {
    background: var(--bg-light);
    padding: 25px;
    border-radius: 10px;
    text-align: center;
}

.equipment-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.equipment-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.equipment-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Third Party Inspection */
.third-party {
    background: var(--bg-light);
}

.tpi-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}

.tpi-logos {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.tpi-logo-placeholder {
    background: var(--bg-white);
    padding: 30px;
    text-align: center;
    border-radius: 10px;
    font-weight: bold;
    color: var(--primary-color);
    box-shadow: var(--shadow);
}

.tpi-text ul {
    margin: 20px 0;
}

.tpi-text li {
    padding: 5px 0;
    color: var(--text-light);
}

/* Guarantee */
.guarantee-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.guarantee-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

.guarantee-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.guarantee-card p {
    color: var(--text-light);
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
}

.contact-info h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.contact-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-detail h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-detail p {
    color: var(--text-light);
}

.contact-detail .note {
    font-size: 0.85rem;
    color: var(--text-light);
    opacity: 0.7;
}

.contact-detail a {
    color: var(--primary-color);
}

.contact-detail a:hover {
    text-decoration: underline;
}

.social-links {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.social-links h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 45px;
    height: 45px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

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

.contact-form-wrapper {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 10px;
}

.contact-form-wrapper h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
}

/* FAQ */
.faq-section {
    background: var(--bg-light);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.faq-item {
    background: var(--bg-white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.faq-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Map */
.map-placeholder-large {
    background: var(--bg-light);
    padding: 80px;
    border-radius: 10px;
    text-align: center;
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 992px) {
    .about-grid,
    .contact-grid,
    .qc-detail-grid,
    .tpi-content {
        grid-template-columns: 1fr;
    }
    
    .qc-detail-grid.reverse {
        direction: ltr;
    }
    
    .product-item {
        grid-template-columns: 1fr;
    }
    
    .product-item-image {
        height: 200px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .header-cta {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .inquiry-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .product-specs {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .qc-flow {
        flex-direction: column;
    }
    
    .qc-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 480px) {
    .hero-features {
        flex-direction: column;
        gap: 15px;
    }
    
    .product-grid,
    .why-grid,
    .certs-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Hero Animation Effects */
.hero-content > * {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-content h1 {
    animation-delay: 0.2s;
}

.hero-content p {
    animation-delay: 0.4s;
}

.hero-buttons {
    animation-delay: 0.6s;
}

.hero-features {
    animation-delay: 0.8s;
}

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

/* Parallax Effect for Hero */
@media (min-width: 1024px) {
    .hero {
        background-attachment: fixed;
    }
}