/* Modern Corporate Styles - Xi'an Haozhan */
:root {
    --primary: #002B5B;
    --secondary: #C5A059;
    --accent: #E14D2A;
    --dark: #1A1A1A;
    --light: #F4F4F4;
    --white: #FFFFFF;
    --gray: #777777;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', Roboto, sans-serif;
    color: var(--dark);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 30px;
}

/* Header & Nav */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    height: 90px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.05);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
}

.logo h1 {
    font-size: 26px;
    color: var(--primary);
    letter-spacing: 1px;
    font-weight: 800;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 35px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--secondary);
}

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

.lang-switch {
    margin-left: 40px;
    border: 1px solid #ddd;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, rgba(0,43,91,0.8) 0%, rgba(0,0,0,0.4) 100%), url('images/banner.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    color: var(--white);
    padding-top: 90px;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

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

.hero h2 {
    font-size: 64px;
    line-height: 1.1;
    margin-bottom: 25px;
    font-weight: 800;
}

.hero p {
    font-size: 22px;
    margin-bottom: 40px;
    opacity: 0.9;
    font-weight: 300;
}

.btn-group {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 16px 40px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: var(--transition);
    display: inline-block;
}

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

.btn-primary:hover {
    background: #b08d4a;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(197,160,89,0.3);
}

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

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

/* Section Basics */
section {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header span {
    color: var(--secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 14px;
    display: block;
    margin-bottom: 10px;
}

.section-header h2 {
    font-size: 40px;
    color: var(--primary);
    font-weight: 800;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-img-box {
    position: relative;
}

.about-img-box img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 20px 20px 0px var(--light);
}

.about-content h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
}

.stat-item h4 {
    font-size: 36px;
    color: var(--secondary);
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 14px;
    color: var(--gray);
}

/* Market Section */
.market-section {
    background: var(--dark);
    color: var(--white);
}

.market-section .section-header h2 {
    color: var(--white);
}

.market-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.map-container img {
    width: 100%;
    filter: drop-shadow(0 0 20px rgba(197,160,89,0.2));
}

.market-list {
    list-style: none;
}

.market-list li {
    margin-bottom: 30px;
    padding-left: 30px;
    position: relative;
}

.market-list li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-size: 20px;
}

/* Products */
.product-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-item {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.product-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.product-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.product-info {
    padding: 30px;
}

.product-info h4 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--primary);
}

/* Footer Design */
footer {
    background: #0A0A0A;
    color: #999;
    padding: 100px 0 30px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 80px;
}

.footer-logo h2 {
    color: var(--white);
    margin-bottom: 25px;
}

.footer-about p {
    font-size: 14px;
    line-height: 1.8;
}

.footer-links h4, .footer-contact h4 {
    color: var(--white);
    margin-bottom: 25px;
    font-size: 18px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after, .footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--secondary);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #999;
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary);
    padding-left: 5px;
}

.footer-contact p {
    font-size: 14px;
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.footer-contact i {
    color: var(--secondary);
    margin-right: 15px;
    margin-top: 5px;
}

.footer-bottom {
    border-top: 1px solid #222;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.social-icons a {
    color: #999;
    margin-left: 20px;
    font-size: 18px;
    transition: var(--transition);
}

.social-icons a:hover {
    color: var(--secondary);
}

/* Responsive */
@media (max-width: 1024px) {
    .footer-top { grid-template-columns: 1fr 1fr; }
    .about-grid, .market-content { grid-template-columns: 1fr; }
    .hero h2 { font-size: 48px; }
}

@media (max-width: 768px) {
    .product-showcase { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}