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

:root {
    /* Color Palette */
    --primary-color: #1a5490;
    --primary-dark: #0f3a5f;
    --secondary-color: #d4af37;
    --accent-color: #e8b54d;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-primary: 'Noto Sans SC', sans-serif;
    --font-display: 'Playfair Display', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.8;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===========================
   Navigation Bar
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand {
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    letter-spacing: 1px;
}

.logo-subtitle {
    font-size: 0.7rem;
    color: var(--secondary-color);
    font-weight: 500;
    letter-spacing: 2px;
    margin-top: -5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: rgba(26, 84, 144, 0.05);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.02) 10px,
            rgba(255, 255, 255, 0.02) 20px
        );
    animation: slide 20s linear infinite;
}

@keyframes slide {
    0% { transform: translateX(0); }
    100% { transform: translateX(20px); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: white;
    max-width: 800px;
    padding: var(--spacing-md);
    animation: fadeInUp 1s ease-out;
}

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

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 3px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    letter-spacing: 8px;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
}

.hero-description {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    display: inline-block;
}

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

.btn-primary:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background-color: white;
    color: var(--primary-color);
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: white;
    animation: bounce 2s infinite;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===========================
   Section Common Styles
   =========================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
    margin: 0 auto var(--spacing-md);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===========================
   About Section
   =========================== */
.about-section {
    background-color: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.about-text {
    background: linear-gradient(135deg, var(--bg-light) 0%, white 100%);
    padding: var(--spacing-lg);
    border-radius: 15px;
    box-shadow: 0 5px 30px var(--shadow);
}

.about-text h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    text-align: justify;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.value-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 30px var(--shadow);
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px var(--shadow-hover);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.value-card h4 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.value-card p {
    color: var(--text-light);
    font-size: 1rem;
}

/* ===========================
   Companies Section
   =========================== */
.companies-section {
    background: linear-gradient(to bottom, var(--bg-light), white);
}

.company-card {
    background: white;
    border-radius: 20px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 10px 50px var(--shadow);
    transition: var(--transition);
}

.company-card:hover {
    box-shadow: 0 15px 60px var(--shadow-hover);
}

.company-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.company-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    flex-shrink: 0;
}

.company-title-group {
    flex: 1;
}

.company-name {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.company-name-en {
    font-size: 1.2rem;
    color: var(--text-light);
    font-style: italic;
}

.company-slogan {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-md);
    border-radius: 10px;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.slogan-cn {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.slogan-en {
    font-size: 1.1rem;
    font-style: italic;
    opacity: 0.9;
}

.company-content {
    display: grid;
    gap: var(--spacing-lg);
}

.company-info,
.company-culture,
.company-services {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: 12px;
}

.company-info h4,
.company-culture h4,
.company-services h4 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.company-info h4 i,
.company-culture h4 i,
.company-services h4 i {
    color: var(--secondary-color);
}

.company-info p {
    font-size: 1.05rem;
    color: var(--text-dark);
    line-height: 1.8;
    text-align: justify;
}

.culture-list {
    list-style: none;
    padding: 0;
}

.culture-list li {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    background: white;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
    font-size: 1.05rem;
    color: var(--text-dark);
}

.culture-list li strong {
    color: var(--primary-color);
    font-weight: 600;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.service-item {
    background: white;
    padding: var(--spacing-md);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.service-item:hover {
    border-color: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow);
}

.service-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.service-item h5 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

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

/* Business Showcase Images */
.business-showcase {
    margin: var(--spacing-md) 0;
}

.showcase-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.showcase-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 5px 20px var(--shadow);
    transition: var(--transition);
}

.showcase-img:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 40px var(--shadow-hover);
}

/* ===========================
   Charity Section
   =========================== */
.charity-section {
    background: linear-gradient(to bottom, white, var(--bg-light));
    padding: var(--spacing-xl) 0;
}

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

.charity-intro {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 15px;
    box-shadow: 0 5px 30px var(--shadow);
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.charity-intro h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.charity-intro p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.charity-blessing {
    font-size: 1.2rem !important;
    font-weight: 500;
    color: var(--primary-color);
    text-align: center !important;
    margin: var(--spacing-lg) 0 !important;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(26, 84, 144, 0.05), rgba(212, 175, 55, 0.05));
    border-radius: 10px;
}

.charity-signature {
    text-align: right !important;
    font-style: italic;
    color: var(--text-light);
    margin-top: var(--spacing-md) !important;
}

.charity-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

@media (max-width: 992px) {
    .charity-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .charity-gallery {
        grid-template-columns: 1fr;
    }
}

.charity-image-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px var(--shadow);
    transition: var(--transition);
}

.charity-image-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px var(--shadow-hover);
}

.charity-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.image-caption {
    padding: var(--spacing-md);
    font-size: 0.95rem;
    color: var(--text-dark);
    text-align: center;
    background: var(--bg-light);
}

.charity-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    padding: var(--spacing-md);
}

.tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.tag:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(26, 84, 144, 0.3);
}

/* ===========================
   Contact Section
   =========================== */
.contact-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.contact-section .section-title {
    color: white;
}

.contact-section .title-underline {
    background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
}

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

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-dark);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
    color: var(--accent-color);
}

.contact-details p {
    font-size: 1rem;
    opacity: 0.95;
}

.contact-companies {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.company-contact {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.company-contact h4 {
    font-size: 1.3rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.company-contact p {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    opacity: 0.95;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.company-contact p i {
    color: var(--secondary-color);
}

/* ===========================
   Footer
   =========================== */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-column h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--secondary-color);
}

.footer-column h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

.footer-column p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

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

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--secondary-color);
    color: var(--primary-dark);
    transform: translateY(-5px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 768px) {
    :root {
        --spacing-xs: 0.4rem;
        --spacing-sm: 0.8rem;
        --spacing-md: 1.5rem;
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: var(--spacing-md) 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    /* Hero Section Mobile */
    .hero-title {
        font-size: 2.5rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-subtitle {
        font-size: 1rem;
        letter-spacing: 3px;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-description {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 85%;
        max-width: 280px;
        padding: 0.9rem 2rem;
        font-size: 0.95rem;
    }
    
    /* Section Titles Mobile */
    .section-title {
        font-size: 1.8rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .section-subtitle {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
    }
    
    /* About Section Mobile */
    .about-text {
        padding: var(--spacing-md);
    }
    
    .about-text h3 {
        font-size: 1.5rem;
    }
    
    .about-text p {
        font-size: 1rem;
    }
    
    .about-values {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .value-card {
        padding: var(--spacing-md);
    }
    
    /* Company Cards Mobile */
    .company-card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .company-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .company-logo {
        width: 70px;
        height: 70px;
        font-size: 2rem;
    }
    
    .company-name {
        font-size: 1.4rem;
    }
    
    .company-name-en {
        font-size: 1rem;
    }
    
    .slogan-cn {
        font-size: 1.1rem;
    }
    
    .slogan-en {
        font-size: 0.95rem;
    }
    
    .company-info,
    .company-culture,
    .company-services {
        padding: var(--spacing-sm);
    }
    
    .company-info h4,
    .company-culture h4,
    .company-services h4 {
        font-size: 1.2rem;
    }
    
    .company-info p {
        font-size: 0.95rem;
    }
    
    .culture-list li {
        font-size: 0.95rem;
        padding: var(--spacing-xs);
    }
    
    /* Business Showcase Mobile */
    .showcase-images {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .showcase-img {
        height: 250px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .service-item {
        padding: var(--spacing-sm);
    }
    
    .service-item h5 {
        font-size: 1.1rem;
    }
    
    /* Charity Section Mobile */
    .charity-intro {
        padding: var(--spacing-md);
    }
    
    .charity-intro h3 {
        font-size: 1.4rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .charity-intro p {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .charity-blessing {
        font-size: 1.05rem !important;
        padding: var(--spacing-sm) !important;
    }
    
    .charity-gallery {
        gap: var(--spacing-sm);
    }
    
    .charity-img {
        height: 220px;
    }
    
    .image-caption {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .charity-tags {
        gap: var(--spacing-xs);
        padding: var(--spacing-sm);
    }
    
    .tag {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
    
    /* Contact Section Mobile */
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .contact-item {
        flex-direction: row;
        padding: var(--spacing-sm);
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .contact-details h4 {
        font-size: 1.1rem;
    }
    
    .company-contact {
        padding: var(--spacing-sm);
    }
    
    .company-contact h4 {
        font-size: 1.15rem;
        flex-wrap: wrap;
    }
    
    .company-contact p {
        font-size: 0.9rem;
        flex-wrap: wrap;
    }
    
    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .footer-column h3 {
        font-size: 1.3rem;
    }
    
    .footer-column h4 {
        font-size: 1.1rem;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.3rem;
        --spacing-sm: 0.6rem;
        --spacing-md: 1rem;
        --spacing-lg: 2.5rem;
        --spacing-xl: 3.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Navigation Mobile */
    .logo {
        font-size: 1.3rem;
    }
    
    .logo-subtitle {
        font-size: 0.6rem;
        letter-spacing: 1.5px;
    }
    
    /* Hero Section Small Mobile */
    .hero-title {
        font-size: 1.8rem;
        letter-spacing: 2px;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
        letter-spacing: 2px;
    }
    
    .hero-description {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    .btn {
        width: 90%;
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    /* Section Spacing */
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    /* About Section Small Mobile */
    .about-text {
        padding: var(--spacing-sm);
    }
    
    .about-text h3 {
        font-size: 1.3rem;
    }
    
    .about-text p {
        font-size: 0.9rem;
    }
    
    .value-card {
        padding: var(--spacing-sm);
    }
    
    .value-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .value-card h4 {
        font-size: 1.2rem;
    }
    
    /* Company Cards Small Mobile */
    .company-card {
        padding: var(--spacing-sm);
    }
    
    .company-logo {
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
    }
    
    .company-name {
        font-size: 1.2rem;
    }
    
    .company-name-en {
        font-size: 0.9rem;
    }
    
    .slogan-cn {
        font-size: 1rem;
    }
    
    .slogan-en {
        font-size: 0.85rem;
    }
    
    .company-info h4,
    .company-culture h4,
    .company-services h4 {
        font-size: 1.1rem;
    }
    
    .company-info p {
        font-size: 0.85rem;
    }
    
    .culture-list li {
        font-size: 0.85rem;
    }
    
    /* Business Showcase Small Mobile */
    .showcase-img {
        height: 200px;
    }
    
    .service-item i {
        font-size: 2rem;
    }
    
    .service-item h5 {
        font-size: 1rem;
    }
    
    .service-item p {
        font-size: 0.85rem;
    }
    
    /* Charity Section Small Mobile */
    .charity-intro {
        padding: var(--spacing-sm);
    }
    
    .charity-intro h3 {
        font-size: 1.2rem;
    }
    
    .charity-intro p {
        font-size: 0.85rem;
    }
    
    .charity-blessing {
        font-size: 0.95rem !important;
    }
    
    .charity-img {
        height: 180px;
    }
    
    .image-caption {
        font-size: 0.8rem;
    }
    
    .tag {
        padding: 0.3rem 0.6rem;
        font-size: 0.75rem;
    }
    
    /* Contact Section Small Mobile */
    .contact-item {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-sm);
    }
    
    .contact-icon {
        width: 45px;
        height: 45px;
        margin: 0 auto var(--spacing-xs);
    }
    
    .contact-details h4 {
        font-size: 1rem;
    }
    
    .contact-details p {
        font-size: 0.85rem;
    }
    
    .company-contact h4 {
        font-size: 1rem;
        justify-content: center;
    }
    
    .company-contact p {
        font-size: 0.85rem;
        justify-content: center;
    }
    
    /* Footer Small Mobile */
    .footer-column h3 {
        font-size: 1.2rem;
    }
    
    .footer-column h4 {
        font-size: 1rem;
    }
    
    .footer-column p,
    .footer-column ul li {
        font-size: 0.9rem;
    }
    
    .social-links a {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
}