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

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333333;
    background-color: #ffffff;
}

/* Utility Classes */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }
}

/* Animation Classes */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c19c8a;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #8a6c5d;
}

/* Form Focus States */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

/* Image Transitions */
img {
    transition: transform 0.5s ease;
}

img:hover {
    transform: scale(1.05);
}

/* Button Transitions */
button {
    transition: all 0.3s ease;
}

button:hover {
    /* transform: translateY(-2px); */
}

button:active {
    transform: translateY(0);
}

/* Loading Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* Responsive Typography */
@media (max-width: 640px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
}

/* Product Card Styles */
.product-card {
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

/* Testimonial Styles */
.testimonial {
    background-color: #ffffff;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.testimonial:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

/* FAQ Styles */
.faq-toggle {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    text-align: left;
    padding: 1rem;
    border: none;
    background: none;
    outline: none;
    transition: background-color 0.2s ease;
}

.faq-toggle:hover {
    background-color: rgba(0, 102, 204, 0.05);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

/* Back to Top Button */
#back-to-top {
    position: fixed;
    bottom: 4rem;
    right: 1.25rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    /* background-color: #8a6c5d; */
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
}
/* 大屏幕bottom 为2rem */
@media (min-width: 768px) {
    #back-to-top {
        bottom: 2rem;
        right: 1.7rem;
    }
}


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

#back-to-top:hover {
    background-color: #6a5345;
    transform: translateY(-3px);
}

/* Mobile Menu Styles */
@media (max-width: 768px) {
    .mobile-menu {
        transition: max-height 0.3s ease, opacity 0.3s ease;
        overflow: hidden;
    }
    
    .mobile-menu.open {
        max-height: 300px;
        opacity: 1;
    }
}

/* Newsletter Section */
.newsletter {
    background-color: #0066cc;
    color: white;
    padding: 4rem 0;
}

.newsletter-form {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.newsletter-input {
    flex-grow: 1;
    min-width: 250px;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
}

.newsletter-button {
    padding: 0.75rem 2rem;
    background-color: white;
    color: #0066cc;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-button:hover {
    background-color: #f5f5f5;
    transform: translateY(-2px);
}

/* Footer Styles */
.footer {
    background-color: #1a1a1a;
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: white;
}

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

.footer-social-link {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all 0.3s ease;
}

.footer-social-link:hover {
    background-color: #0066cc;
    transform: translateY(-3px);
}

/* Map Container */
.map-container {
    height: 240px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

/* Contact Form Styles */
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

.contact-form button {
    width: 100%;
    padding: 0.75rem;
    background-color: #0066cc;
    color: white;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.contact-form button:hover {
    background-color: #0052a3;
}

/* Feature Section */
.feature-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background-color: rgba(0, 102, 204, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #0066cc;
    font-size: 1.5rem;
    margin: 0 auto 1.5rem;
}

/* Hero Section */
.hero-section {
    position: relative;
    overflow: hidden;
}

.hero-content {
    z-index: 1;
    position: relative;
}

.hero-image {
    transition: transform 0.7s ease;
}

.hero-image:hover {
    transform: scale(1.05);
}