:root {
    --primary-color: #333333;
    --secondary-color: #444444;
    --accent-color: #666666;
    --text-color: #333333;
    --heading-color: #222222;
    --light-bg: #ffffff;
    --white: #ffffff;
    --dark-overlay: rgba(0, 0, 0, 0.7);
    --section-bg: #f8f9fa;
    --border-color: #e0e0e0;
    --card-bg: #ffffff;
    --text-muted: #666666;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    scroll-behavior: smooth;
    background-color: var(--light-bg);
}

.transparent-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 2em;
    z-index: 1000;
    background: transparent;
    transition: all 0.3s ease;
}

.transparent-nav.scrolled {
    background-color: rgba(51, 51, 51, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
}

.company-icon {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    letter-spacing: 1px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-right a {
    text-decoration: none;
    color: var(--white) !important;
    font-weight: 500;
    transition: color 0.3s ease;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.home-btn {
    font-weight: 700;
    margin-right: 1rem;
    color: var(--white) !important;
}

.market-btn {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: background-color 0.3s ease;
    color: var(--white) !important;
}

.market-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.market-btn.active {
    background: var(--accent-color);
    color: var(--white);
}

.nav-links a {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
    position: relative;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background: var(--white);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    text-align: center;
    overflow: hidden;
    background-color: #000;
    padding-top: 150px;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom,
            var(--dark-overlay) 0%,
            rgba(0, 0, 0, 0.5) 50%,
            var(--dark-overlay) 100%);
    z-index: 2;
}

.hero .content {
    max-width: 1200px;
    padding: 2em;
    animation: fadeIn 1s ease-out;
    position: relative;
    z-index: 3;
    margin-top: -20px;
}

.hero h1 {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero .tagline {
    font-size: 2.8rem;
    margin-bottom: 4rem;
    opacity: 0.9;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    font-weight: 600;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.4;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 6rem;
    margin-bottom: 4rem;
    padding: 2rem 0;
}

.hero-price-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 2rem;
}

.quick-price {
    background: rgba(0, 0, 0, 0.5);
    padding: 1rem 2rem;
    border-radius: 30px;
    margin: 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.quick-price-label {
    color: var(--white);
    font-size: 1.1rem;
    opacity: 0.9;
}

.quick-price-value {
    color: var(--white);
    font-size: 1.3rem;
    font-weight: 700;
}

.quick-price-change {
    font-size: 1.1rem;
    font-weight: 500;
}

.quick-price-change.positive {
    color: #22c55e;
}

.quick-price-change.negative {
    color: #ef4444;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.btn {
    display: inline-block;
    padding: 1em 2em;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-shadow: none;
}

.btn:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.grey-section {
    padding: 6rem 2rem;
    background-color: var(--section-bg);
    position: relative;
    overflow: hidden;
}

.grey-section h2 {
    text-align: center;
    font-size: 3.2rem;
    margin-bottom: 1rem;
    color: var(--heading-color);
    font-weight: 700;
    position: relative;
    padding-bottom: 1.5rem;
}

.grey-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 2px;
}

.grey-section h3 {
    text-align: center;
    font-size: 2.4rem;
    margin: 4rem 0 2rem;
    color: var(--heading-color);
    font-weight: 600;
    position: relative;
    padding-bottom: 1rem;
}

.grey-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-item {
    background: var(--card-bg);
    padding: 0;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    border-color: var(--accent-color);
}

.service-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.service-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.service-item:hover .service-img {
    transform: scale(1.1);
}

.service-item h3 {
    color: var(--heading-color);
    margin: 1.5rem 1.5rem 0.5rem;
    font-size: 1.8rem;
    font-weight: 600;
}

.service-item p {
    margin: 0 1.5rem 1.5rem;
    color: var(--text-color);
    line-height: 1.6;
    font-size: 1.2rem;
    opacity: 0.9;
}

.language-switcher {
    position: relative;
}

.lang-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s ease;
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.lang-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.lang-menu {
    position: absolute;
    right: 0;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-top: 0.5rem;
    overflow: hidden;
}

.lang-menu a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.lang-menu a:hover {
    background-color: var(--light-bg);
}

.hidden {
    display: none;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 500;
    color: var(--heading-color);
    font-size: 1.2rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--section-bg);
    color: var(--text-color);
    transition: border-color 0.3s ease;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@media (max-width: 768px) {
    .company-icon {
        width: 24px;
        height: 24px;
    }

    .company-name {
        font-size: 1.3rem;
    }

    .hero {
        padding-top: 100px;
    }

    .hero .content {
        padding: 1.5em;
        margin-top: -10px;
    }

    .hero .tagline {
        font-size: 2rem;
        margin-bottom: 3rem;
        padding: 0 1rem;
    }

    .hero-stats {
        gap: 3rem;
        margin-bottom: 3rem;
        padding: 1rem 0;
    }

    .stat-item {
        gap: 0.5rem;
    }

    .hero-price-section {
        gap: 1.5rem;
        margin-top: 1.5rem;
    }

    .grey-section h2 {
        font-size: 2.6rem;
    }

    .grey-section h3 {
        font-size: 2rem;
        margin: 3rem 0 1.5rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .grey-section {
        padding: 4rem 1rem;
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .service-item h3 {
        font-size: 1.6rem;
    }

    .service-item p {
        font-size: 1.1rem;
    }

    .nav-right {
        gap: 1rem;
    }

    .market-btn {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }

    .brand {
        gap: 0.8rem;
    }

    .quick-price {
        padding: 0.8rem 1.5rem;
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .quick-price-label {
        font-size: 1rem;
    }

    .quick-price-value {
        font-size: 1.2rem;
    }

    .quick-price-change {
        font-size: 1rem;
    }
}

.footer {
    background-color: var(--section-bg);
    color: var(--text-color);
    padding: 1rem 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

@media (max-width: 768px) {
    .footer {
        padding: 1rem;
    }
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 1000;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    background-color: var(--secondary-color);
}

@media (max-width: 768px) {
    .footer {
        padding: 3rem 1.5rem 1.5rem;
    }

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

    .back-to-top {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1.2rem;
    }
}

.market-header {
    position: relative;
    height: 40vh;
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    text-align: center;
    background-color: #000;
    padding-top: 80px;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.market-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom,
            var(--dark-overlay) 0%,
            rgba(0, 0, 0, 0.5) 50%,
            var(--dark-overlay) 100%);
    z-index: 1;
}

.market-header-content {
    max-width: 800px;
    padding: 2rem;
    z-index: 2;
    position: relative;
}

.market-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--white);
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.market-header p {
    font-size: 1.4rem;
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.market-dashboard {
    padding: 4rem 2rem;
    background-color: var(--light-bg);
}

@media (max-width: 768px) {
    .market-header {
        height: 30vh;
        min-height: 250px;
    }

    .market-header h1 {
        font-size: 2.5rem;
    }

    .market-header p {
        font-size: 1.2rem;
    }

    .market-dashboard {
        padding: 2rem 1rem;
    }
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem;
}

.about-intro,
.about-foundation,
.about-mission {
    margin-bottom: 2rem;
    line-height: 1.8;
}

.about-strengths {
    margin: 3rem 0;
}

.about-strengths h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.strength-item {
    margin-bottom: 2rem;
}

.strength-item h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.strength-item p {
    line-height: 1.6;
}

@media (max-width: 768px) {
    .about-content {
        padding: 0 1rem;
    }

    .about-strengths h3 {
        font-size: 1.3rem;
    }

    .strength-item h4 {
        font-size: 1.1rem;
    }
}

.about-intro-section {
    display: flex;
    align-items: stretch;
    gap: 0;
    margin: 4rem auto;
    padding: 0;
    max-width: 1400px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.about-intro-content {
    flex: 1;
    padding: 4rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-intro-content h2 {
    font-size: 3.2rem;
    color: var(--heading-color);
    margin-bottom: 2rem;
    font-weight: 700;
}

.about-intro-content p {
    font-size: 1.4rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.about-intro-image {
    flex: 1.2;
    position: relative;
    min-height: 600px;
    max-height: 800px;
}

.about-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.about-img:hover {
    transform: scale(1.05);
}

@media (max-width: 1200px) {
    .about-intro-section {
        max-width: 1200px;
        margin: 4rem 2rem;
    }

    .about-intro-image {
        min-height: 500px;
    }
}

@media (max-width: 968px) {
    .about-intro-section {
        flex-direction: column;
        margin: 3rem 1rem;
    }

    .about-intro-content {
        padding: 2rem;
    }

    .about-intro-image {
        min-height: 400px;
        max-height: 500px;
        width: 100%;
    }

    .about-intro-content h2 {
        font-size: 2.6rem;
    }

    .about-intro-content p {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .about-intro-section {
        margin: 2rem 1rem;
    }

    .about-intro-content {
        padding: 1.5rem;
    }

    .about-intro-image {
        min-height: 300px;
        max-height: 400px;
    }

    .about-intro-content h2 {
        font-size: 2.2rem;
    }

    .about-intro-content p {
        font-size: 1.1rem;
    }
}

.strengths-section {
    margin: 6rem auto;
    max-width: 1400px;
    text-align: center;
    background-color: var(--section-bg);
    padding: 4rem 2rem;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

.strengths-header {
    position: relative;
    z-index: 2;
    font-size: 2.4rem;
    color: var(--heading-color);
    margin-bottom: 3rem;
    font-weight: 600;
    text-align: center;
}

.strengths-grid {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    padding: 2rem;
    margin: 0 auto;
    max-width: 1200px;
}

.strength-row {
    display: flex;
    align-items: stretch;
    gap: 3rem;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.strength-row:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
    border-color: var(--accent-color);
}

.strength-row:nth-child(even) {
    flex-direction: row-reverse;
}

.strength-content {
    flex: 1.2;
    padding: 3rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.strength-content h4 {
    color: var(--heading-color);
    font-size: 2.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.strength-content p {
    font-size: 1.3rem;
    line-height: 1.6;
    color: var(--text-color);
    margin: 0;
}

.strength-image {
    flex: 1;
    position: relative;
    min-height: 400px;
    max-height: 500px;
    overflow: hidden;
}

.strength-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.strength-row:hover .strength-img {
    transform: scale(1.05);
}

@media (max-width: 1200px) {
    .strength-content {
        padding: 2.5rem;
    }

    .strength-content h4 {
        font-size: 2rem;
    }

    .strength-content p {
        font-size: 1.2rem;
    }

    .strength-image {
        min-height: 350px;
        max-height: 450px;
    }
}

@media (max-width: 968px) {
    .strength-row {
        flex-direction: column !important;
        gap: 0;
    }

    .strength-content {
        padding: 2rem;
    }

    .strength-image {
        width: 100%;
        min-height: 300px;
        max-height: 400px;
    }

    .strength-content h4 {
        font-size: 1.8rem;
    }

    .strength-content p {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .strengths-section {
        padding: 3rem 1rem;
    }

    .strength-content {
        padding: 1.5rem;
    }

    .strength-image {
        min-height: 250px;
        max-height: 350px;
    }

    .strength-content h4 {
        font-size: 1.6rem;
    }

    .strength-content p {
        font-size: 1rem;
    }
}

.about-mission-section {
    display: flex;
    align-items: stretch;
    gap: 0;
    padding: 0;
    margin: 6rem auto;
    max-width: 1400px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.mission-content {
    flex: 1;
    padding: 4rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.mission-content h3 {
    font-size: 3.2rem;
    color: var(--heading-color);
    margin-bottom: 2rem;
    font-weight: 700;
}

.mission-content p {
    font-size: 1.4rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.mission-image {
    flex: 1.2;
    position: relative;
    min-height: 600px;
    max-height: 800px;
}

.mission-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.mission-img:hover {
    transform: scale(1.05);
}

@media (max-width: 1200px) {
    .about-mission-section {
        max-width: 1200px;
        margin: 4rem 2rem;
    }

    .mission-image {
        min-height: 500px;
    }
}

@media (max-width: 968px) {
    .about-mission-section {
        flex-direction: column;
        margin: 3rem 1rem;
    }

    .mission-content {
        padding: 2rem;
    }

    .mission-image {
        min-height: 400px;
        max-height: 500px;
        width: 100%;
    }

    .mission-content h3 {
        font-size: 2.6rem;
    }

    .mission-content p {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .about-mission-section {
        margin: 2rem 1rem;
    }

    .mission-content {
        padding: 1.5rem;
    }

    .mission-image {
        min-height: 300px;
        max-height: 400px;
    }

    .mission-content h3 {
        font-size: 2.2rem;
    }

    .mission-content p {
        font-size: 1.1rem;
    }
}

.market-prices-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.market-prices-card {
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
}

.market-prices-header {
    background: var(--section-bg);
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.market-prices-header h2 {
    color: var(--heading-color);
    font-size: 2.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.update-time {
    color: var(--text-muted);
    font-size: 1rem;
}

.market-prices-table {
    width: 100%;
    padding: 2rem;
}

.market-prices-table table {
    width: 100%;
    border-collapse: collapse;
    color: var(--text-color);
}

.market-prices-table th,
.market-prices-table td {
    padding: 1.2rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.market-prices-table th {
    background: var(--section-bg);
    font-weight: 600;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--heading-color);
}

.market-prices-table td {
    font-size: 1.1rem;
}

.market-prices-table tr:last-child td {
    border-bottom: none;
}

.market-prices-table tr:hover {
    background: var(--section-bg);
}

.price-change {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.9rem;
    margin-left: 0.5rem;
    font-weight: 500;
}

.price-change.positive {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.price-change.negative {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.last-updated {
    font-size: 0.9rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .market-prices-container {
        padding: 0 1rem;
    }

    .market-prices-table {
        padding: 1rem;
        overflow-x: auto;
    }

    .market-prices-table table {
        min-width: 600px;
    }

    .market-prices-table th,
    .market-prices-table td {
        padding: 1rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .market-prices-container {
        padding: 0 0.5rem;
    }

    .market-prices-table {
        padding: 0.5rem;
    }

    .market-prices-table th,
    .market-prices-table td {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
}

.contact-header {
    position: relative;
    height: 40vh;
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    text-align: center;
    background-color: #000;
    padding-top: 80px;
    overflow: hidden;
}

.contact-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom,
            var(--dark-overlay) 0%,
            rgba(0, 0, 0, 0.5) 50%,
            var(--dark-overlay) 100%);
    z-index: 1;
}

.contact-header-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 2rem;
}

.contact-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--white);
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.contact-header p {
    font-size: 1.6rem;
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.contact-main {
    padding: 4rem 2rem;
    background-color: var(--section-bg);
}

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

.contact-section {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-section h2 {
    font-size: 2.4rem;
    color: var(--heading-color);
    margin-bottom: 2.5rem;
    font-weight: 600;
    text-align: center;
}

.cooperation-types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.coop-item {
    padding: 2.5rem;
    background: var(--light-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.coop-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-color);
}

.coop-item h3 {
    font-size: 1.8rem;
    color: var(--heading-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.coop-item p {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.coop-item ul {
    list-style: none;
    padding: 0;
}

.coop-item ul li {
    padding: 0.8rem 0;
    color: var(--text-color);
    font-size: 1.2rem;
    position: relative;
    padding-left: 2rem;
    line-height: 1.6;
}

.coop-item ul li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.4rem;
}

.contact-form-container {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 3rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    max-width: 800px;
    margin: 0 auto;
}

.contact-form-container h2 {
    font-size: 2.2rem;
    color: var(--heading-color);
    margin-bottom: 2rem;
    font-weight: 600;
    text-align: center;
}

.contact-form .form-group {
    margin-bottom: 2rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--heading-color);
    font-size: 1.1rem;
    font-weight: 500;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--light-bg);
    color: var(--text-color);
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 102, 102, 0.1);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-muted);
}

.submit-btn {
    width: 100%;
    padding: 1.2rem;
    background: var(--accent-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.submit-btn:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

@media (max-width: 968px) {
    .cooperation-types {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-section {
        padding: 2rem;
    }

    .contact-section h2 {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .coop-item {
        padding: 2rem;
    }

    .coop-item h3 {
        font-size: 1.6rem;
    }

    .coop-item p {
        font-size: 1.1rem;
    }

    .coop-item ul li {
        font-size: 1.1rem;
    }

    .contact-form-container {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .contact-main {
        padding: 3rem 1rem;
    }

    .contact-section {
        padding: 1.5rem;
    }

    .coop-item {
        padding: 1.5rem;
    }

    .contact-form-container {
        padding: 1.5rem;
    }
}

.contact-preview {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
}

.contact-preview p {
    font-size: 1.4rem;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.section-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.services-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 1.2em;
    color: var(--text-color);
    line-height: 1.5;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .strengths-header {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
}

.footer-contact-info {
    margin-top: 1rem;
}

.contact-item {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.contact-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    min-width: 80px;
}

.contact-value {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.contact-value:hover {
    color: var(--white);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .contact-item {
        flex-direction: column;
        gap: 0.2rem;
        margin-bottom: 1rem;
    }

    .contact-label {
        min-width: auto;
    }
}

/* Success Page Styles */
.success-container {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background-color: #f8f9fa;
}

.success-content {
    text-align: center;
    max-width: 600px;
    padding: 3rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.success-content h1 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.success-content p {
    color: #666;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.back-home-btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: #2c3e50;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.back-home-btn:hover {
    background-color: #34495e;
}

/* Partners Section */
.partners-section {
    padding: 6rem 2rem;
    background-color: var(--white);
    position: relative;
}

.partners-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-color), transparent);
}

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

.partners-container h3 {
    text-align: center;
    font-size: 2.4rem;
    margin-bottom: 3rem;
    color: var(--heading-color);
    font-weight: 600;
    position: relative;
    padding-bottom: 1rem;
}

.partners-container h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    align-items: center;
    justify-items: center;
}

.partner-logo {
    width: 180px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background-color: var(--card-background);
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.partner-logo:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: filter 0.3s ease, opacity 0.3s ease;
}

.partner-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

@media (max-width: 768px) {
    .partners-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1.5rem;
    }

    .partner-logo {
        width: 140px;
        height: 80px;
    }
}

/* Dropdown Menu Styles */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-trigger {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white) !important;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.dropdown-trigger::after {
    content: '▼';
    font-size: 0.8em;
    margin-left: 0.3rem;
    color: var(--white);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(51, 51, 51, 0.95);
    backdrop-filter: blur(10px);
    min-width: 220px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
    padding: 0.5rem 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--white);
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    text-shadow: none;
}

.dropdown-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

/* Add IDs to sections for smooth scrolling */
#about,
#strengths,
#mission,
#offices,
#partners {
    scroll-margin-top: 80px;
}

/* Mobile Navigation Styles */
@media (max-width: 768px) {
    .nav-links {
        padding: 0 1rem;
    }

    .nav-right {
        gap: 1rem;
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .dropdown-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        width: 100%;
        background: rgba(51, 51, 51, 0.98);
        border-radius: 0;
        border: none;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    }

    .dropdown-menu a {
        padding: 1rem 2rem;
        font-size: 1rem;
        text-align: center;
    }

    .market-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }

    .company-name {
        font-size: 1.2rem;
    }

    .company-icon {
        width: 40px;
        height: 40px;
    }

    /* Hero Section Mobile Adjustments */
    .hero .tagline {
        font-size: 1.8rem;
        padding: 0 1rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .stat-item {
        gap: 0.5rem;
    }

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

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

    /* About Section Mobile Adjustments */
    .about-intro-section {
        flex-direction: column;
        margin: 2rem 1rem;
    }

    .about-intro-content {
        padding: 1.5rem;
    }

    .about-intro-image {
        min-height: 250px;
        max-height: 350px;
    }

    .about-intro-content h2 {
        font-size: 2rem;
    }

    .about-intro-content p {
        font-size: 1.1rem;
    }

    /* Strengths Section Mobile Adjustments */
    .strengths-section {
        padding: 3rem 1rem;
        margin: 3rem 1rem;
    }

    .strength-row {
        flex-direction: column !important;
        gap: 0;
    }

    .strength-content {
        padding: 1.5rem;
    }

    .strength-image {
        min-height: 250px;
        max-height: 350px;
    }

    .strength-content h4 {
        font-size: 1.6rem;
    }

    .strength-content p {
        font-size: 1rem;
    }

    /* Mission Section Mobile Adjustments */
    .about-mission-section {
        flex-direction: column;
        margin: 3rem 1rem;
    }

    .mission-content {
        padding: 1.5rem;
    }

    .mission-image {
        min-height: 250px;
        max-height: 350px;
    }

    .mission-content h3 {
        font-size: 2rem;
    }

    .mission-content p {
        font-size: 1.1rem;
    }

    /* Office Locations Mobile Adjustments */
    .office-locations {
        padding: 3rem 1rem;
    }

    .office-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .office-item h4 {
        font-size: 1.4rem;
    }

    .office-item p {
        font-size: 1rem;
    }

    /* Partners Section Mobile Adjustments */
    .partners-section {
        padding: 3rem 1rem;
    }

    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .partner-logo {
        width: 120px;
        height: 80px;
    }

    /* Services Section Mobile Adjustments */
    .service-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .service-item h3 {
        font-size: 1.6rem;
    }

    .service-item p {
        font-size: 1.1rem;
    }
}

/* Small Mobile Adjustments */
@media (max-width: 480px) {
    .nav-links a {
        font-size: 0.85rem;
    }

    .company-name {
        font-size: 1.1rem;
    }

    .company-icon {
        width: 32px;
        height: 32px;
    }

    .hero .tagline {
        font-size: 1.5rem;
    }

    .stat-number {
        font-size: 1.8rem;
    }

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

    .partner-logo {
        width: 140px;
        height: 90px;
    }
}

.price-guidance-info {
    max-width: 1000px;
    margin: 0 auto 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.guidance-intro {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.guidance-notes {
    background: var(--section-bg);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.guidance-notes h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--heading-color);
    margin-bottom: 1rem;
}

.guidance-notes ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.guidance-notes li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.5;
    font-size: 1.05rem;
    color: var(--text-color);
}

.guidance-notes li:last-child {
    margin-bottom: 0;
}

.guidance-notes li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.guidance-notes strong {
    font-weight: 600;
    color: var(--heading-color);
}

.guidance-contact {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-color);
    text-align: center;
}

.guidance-contact a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.guidance-contact a:hover {
    color: var(--heading-color);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .price-guidance-info {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }

    .guidance-intro {
        font-size: 1rem;
    }

    .guidance-notes {
        padding: 1.5rem;
    }

    .guidance-notes li {
        font-size: 1rem;
    }

    .guidance-contact {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .price-guidance-info {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .guidance-notes {
        padding: 1rem;
    }
}

.error-message {
    text-align: center;
    padding: 2rem !important;
}

.error-container {
    background-color: #fee2e2;
    border: 1px solid #ef4444;
    border-radius: 8px;
    padding: 1.5rem;
    color: #991b1b;
}

.error-container p {
    margin: 0;
    line-height: 1.5;
}

.error-container .error-details {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: #7f1d1d;
}

/* Add image optimization styles */
img {
    max-width: 100%;
    height: auto;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

/* Add loading placeholder styles */
.image-placeholder {
    background: #f0f0f0;
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right,
            transparent 0%,
            rgba(255, 255, 255, 0.3) 50%,
            transparent 100%);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    100% {
        left: 100%;
    }
}

/* Optimize image loading for different screen sizes */
@media (max-width: 768px) {
    .hero-image {
        object-position: center;
    }

    .strength-img,
    .about-img,
    .mission-img,
    .office-image img {
        max-width: 100%;
        height: auto;
    }
}

/* Add image loading animation */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}