/* ========================================
   YCW Digital Marketing - Main Stylesheet
   ======================================== */

/* === CSS Variables === */
:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #06b6d4;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #2563eb 100%);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* === Navigation Bar === */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.logo-subtitle {
    font-size: 0.7rem;
    color: var(--text-light);
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-menu > li > a {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
    color: var(--primary-color);
}

.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

.nav-menu > li > a:hover::after,
.nav-menu > li > a.active::after {
    width: 100%;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    box-shadow: var(--shadow-md);
    border-radius: 12px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

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

.dropdown-menu li a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-dark);
    font-size: 0.9rem;
    transition: var(--transition);
}

.dropdown-menu li a:hover {
    background: var(--light-bg);
    color: var(--primary-color);
    padding-left: 2rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.15) 0%, transparent 50%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    max-width: 900px;
    padding: 2rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.2rem;
    color: #cbd5e1;
    margin-bottom: 2.5rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1rem;
    color: #94a3b8;
    margin-top: 0.5rem;
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(37, 99, 235, 0.5);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

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

.btn-white:hover {
    background: var(--light-bg);
    transform: translateY(-3px);
}

/* === Section Styles === */
.services-section,
.why-choose-us,
.process-section {
    padding: 6rem 0;
}

.why-choose-us {
    background: var(--light-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* === Services Grid === */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.service-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(37, 99, 235, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover .service-overlay {
    opacity: 1;
}

.overlay-link {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border: 2px solid white;
    border-radius: 50px;
    transition: var(--transition);
}

.overlay-link:hover {
    background: white;
    color: var(--primary-color);
}

.service-content {
    padding: 2rem;
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-content h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.service-content > p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-features {
    margin-bottom: 1.5rem;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    display: flex;
    align-items: center;
    font-size: 0.95rem;
}

.service-features li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 0.75rem;
    font-size: 1.2rem;
}

.service-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.service-link:hover {
    gap: 1rem;
}

/* === Advantages Grid === */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-item {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.advantage-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.advantage-item h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.advantage-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* === Process Timeline === */
.process-timeline {
    max-width: 900px;
    margin: 0 auto;
}

.process-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: center;
}

.process-number {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    color: white;
    box-shadow: var(--shadow-md);
}

.process-content h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.process-content p {
    color: var(--text-light);
    line-height: 1.8;
}

/* === CTA Section === */
.cta-section {
    padding: 6rem 2rem;
    background: var(--gradient-primary);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
    font-weight: 800;
}

.cta-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

/* === Footer === */
.footer {
    background: var(--dark-bg);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: white;
}

.footer-desc {
    color: #94a3b8;
    line-height: 1.8;
    margin: 1rem 0 1.5rem;
}

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

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

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: #94a3b8;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: white;
    padding-left: 0.5rem;
}

.contact-info li {
    color: #94a3b8;
    margin-bottom: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
}

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

/* === Responsive Design === */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-stats {
        gap: 2rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

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

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

    .process-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
    }

    .process-number {
        margin: 0 auto;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .btn {
        padding: 0.875rem 2rem;
        font-size: 0.95rem;
    }
}

/* ==========================================
   Additional Homepage Styles
   ========================================== */

/* === Hero Badge === */
.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 0.8s ease-out;
}

/* === Trust Badges Section === */
.trust-badges {
    padding: 3rem 0;
    background: var(--light-bg);
    border-bottom: 1px solid var(--border-color);
}

.trust-text {
    text-align: center;
    color: var(--text-light);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.badges-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.badge-item {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    opacity: 0.6;
    transition: var(--transition);
}

.badge-item:hover {
    opacity: 1;
    transform: translateY(-2px);
}

/* === Benefits Grid === */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.benefit-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* === Service Badge === */
.service-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.service-card.featured {
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
}

.service-card.integrated {
    background: var(--gradient-primary);
    color: white;
}

.service-card.integrated h3,
.service-card.integrated p,
.service-card.integrated .service-features li {
    color: white;
}

.service-card.integrated .btn-primary {
    background: white;
    color: var(--primary-color);
}

.service-card.integrated .btn-primary:hover {
    background: var(--light-bg);
}

/* === Process Steps === */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-step {
    position: relative;
    padding-top: 4rem;
    text-align: center;
    background: white;
    padding: 4rem 2rem 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.step-number {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.process-step h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.process-step p {
    color: var(--text-light);
    line-height: 1.7;
}

/* === Stats Section === */
.stats-section {
    padding: 5rem 0;
    background: var(--gradient-primary);
    color: white;
}

.stats-section .section-header {
    margin-bottom: 3rem;
}

.stats-section .section-title,
.stats-section .section-subtitle {
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.stat-box {
    text-align: center;
}

.stat-box-number {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat-box-label {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    opacity: 0.95;
}

.stat-box-description {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* === Testimonials === */
.testimonial-section {
    padding: 6rem 0;
    background: white;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    position: relative;
}

.testimonial-quote {
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    line-height: 1;
}

.testimonial-text {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    font-weight: 700;
    flex-shrink: 0;
}

.author-info h5 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.author-info p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* === CTA Section Enhanced === */
.cta-section {
    padding: 6rem 0;
    background: var(--gradient-primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.05"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v6h4v4h2V6h4V4H6z"/></g></g></svg>');
    background-repeat: repeat;
    opacity: 0.5;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: white;
}

.cta-content > p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.cta-contact {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-top: 1rem;
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* === Footer Enhanced === */
.footer {
    background: #1e293b;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo .logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    color: #94a3b8;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

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

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #334155;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: white;
    transition: var(--transition);
    font-size: 1.2rem;
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    color: white;
}

.footer-links,
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

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

.footer-contact li {
    color: #94a3b8;
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #64748b;
    font-size: 0.9rem;
}

.footer-bottom p {
    margin: 0;
}

/* === Additional Responsive Styles === */
@media (max-width: 768px) {
    .hero-badge {
        font-size: 0.8rem;
        padding: 0.6rem 1.2rem;
    }

    .badges-grid {
        gap: 1.5rem;
    }

    .badge-item {
        font-size: 1rem;
    }

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

    .benefit-card {
        padding: 2rem;
    }

    .benefit-icon {
        font-size: 2.5rem;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

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

    .stat-box-number {
        font-size: 2.5rem;
    }

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

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .stat-box-number {
        font-size: 2rem;
    }

    .stat-box-label {
        font-size: 0.95rem;
    }

    .cta-content h2 {
        font-size: 1.75rem;
    }

    .btn-large {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
}

/* ==========================================
   Language Switcher Styles
   ========================================== */

.language-switcher {
    position: relative;
    margin-left: auto;
    z-index: 1001;
}

.language-current {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-dark);
    transition: var(--transition);
}

.language-current:hover {
    background: white;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.language-current::after {
    content: '▼';
    font-size: 0.7rem;
    transition: transform 0.3s;
}

.language-switcher:hover .language-current::after {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: white;
    min-width: 150px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

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

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}

.lang-option:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

.lang-option.active {
    background: var(--light-bg);
    color: var(--primary-color);
    font-weight: 600;
}

.lang-flag {
    font-size: 1.2rem;
}

.lang-name {
    font-size: 0.9rem;
}

@media (max-width: 968px) {
    .language-switcher {
        margin-left: 0;
        margin-top: 1rem;
    }
    
    .language-current {
        width: 100%;
        justify-content: space-between;
    }
}

/* ===================================
   Mobile Menu Styles - 移动端菜单
   =================================== */

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 350px;
    height: 100vh;
    background: white;
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    z-index: 10000;
    transition: right 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #eee;
    background: var(--primary-color);
    color: white;
}

.mobile-menu-header .logo {
    font-size: 20px;
    font-weight: 700;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 32px;
    color: white;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}

.mobile-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu-list > li {
    border-bottom: 1px solid #eee;
}

.mobile-menu-list > li > a {
    display: block;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    font-size: 16px;
    transition: background 0.3s;
}

.mobile-menu-list > li > a:hover {
    background: #f5f5f5;
    color: var(--primary-color);
}

.mobile-dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 15px 20px;
    background: none;
    border: none;
    text-align: left;
    font-size: 16px;
    color: #333;
    cursor: pointer;
}

.mobile-dropdown-toggle .arrow {
    transition: transform 0.3s;
    font-size: 12px;
}

.mobile-dropdown.active .mobile-dropdown-toggle .arrow {
    transform: rotate(180deg);
}

.mobile-dropdown-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    background: #f8f9fa;
    transition: max-height 0.3s ease;
}

.mobile-dropdown.active .mobile-dropdown-menu {
    max-height: 1000px;
}

.mobile-dropdown-menu li a {
    display: block;
    padding: 12px 20px 12px 40px;
    color: #666;
    text-decoration: none;
    font-size: 14px;
    border-bottom: 1px solid #e9ecef;
    transition: all 0.3s;
}

.mobile-dropdown-menu li a:hover {
    background: white;
    color: var(--primary-color);
    padding-left: 45px;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* PC端隐藏移动端菜单 */
@media (min-width: 769px) {
    .mobile-menu,
    .mobile-menu-overlay {
        display: none !important;
    }
}

/* 移动端显示 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
}