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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, 'PingFang SC', 'Hiragino Sans GB', 'Heiti SC', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

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

ul {
    list-style: none;
}

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

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

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: #fff;
}

.cn {
    display: block;
    font-size: 1.1em;
    font-weight: bold;
}

.en {
    display: block;
    font-size: 0.9em;
    color: #666;
    font-weight: normal;
}

.section-title {
    text-align: center;
    margin-bottom: 10px;
    font-size: 2rem;
    color: #2c3e50;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 50px;
    color: #7f8c8d;
}

/* Navbar */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    color: #e74c3c; /* Ceramic red/brown */
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.brand-logo img {
    height: 60px;
    width: auto;
    border-radius: 50%;
    object-fit: cover;
}

.nav-menu li a {
    text-align: center;
    transition: color 0.3s;
}

.nav-menu li a:hover {
    color: #e74c3c;
}

.menu-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: #333;
    transition: all 0.3s ease-in-out;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/0-0.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    padding-top: 80px;
}

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

.hero-content h1 .en {
    color: #ddd;
    font-size: 1.5rem;
    margin-top: 10px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-content p .en {
    color: #ccc;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    background-color: #e74c3c;
    color: #fff;
    border-radius: 30px;
    transition: background 0.3s;
    text-align: center;
}

.btn:hover {
    background-color: #c0392b;
}

.btn .en {
    color: #fff;
    font-size: 0.8em;
}

/* Process Section */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
}

.step {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

.step:hover {
    transform: translateY(-10px);
}

.step .icon {
    font-size: 3rem;
    color: #e74c3c;
    margin-bottom: 20px;
}

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

.product-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.product-card:hover {
    transform: scale(1.02);
}

.product-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.product-info {
    padding: 20px;
    text-align: center;
}

/* Factory Section */
.factory-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.factory-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    height: 300px;
}

.factory-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.factory-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: #fff;
    padding: 20px;
}

.factory-item .overlay .en {
    color: #ddd;
}

/* Social Media Section */
.social-links {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.social-card {
    background: #fff;
    padding: 30px 50px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
    min-width: 200px;
}

.social-card:hover {
    transform: translateY(-5px);
}

.social-card i {
    font-size: 3rem;
    margin-bottom: 15px;
}

.social-card.douyin i { color: #000; } /* Douyin brand color approx */
.social-card.pinduoduo i { color: #e02e24; }
.social-card.xiaohongshu i { color: #ff2442; }

/* Contact Section */
.contact-wrapper {
    display: flex;
    justify-content: center;
}

.contact-info {
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 600px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
}

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

.info-item i {
    font-size: 1.5rem;
    color: #e74c3c;
    margin-right: 20px;
    margin-top: 5px;
}

/* Footer */
footer {
    background: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 30px 0;
}

footer .en {
    color: #95a5a6;
    display: inline;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
        padding: 20px 0;
        gap: 20px;
    }

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

    .menu-toggle {
        display: block;
    }

    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .factory-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 50px 0;
    }
}