/* 现代化CSS重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 现代化色彩系统 */
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* 中性色彩 */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 字体系统 */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* 间距系统 */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* 圆角系统 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 阴影系统 */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: #ffffff;
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

/* 现代化导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
    color: var(--gray-900);
    font-weight: 700;
    font-size: var(--font-size-xl);
    transition: color 0.3s ease;
}

.nav-logo a:hover {
    color: var(--primary-color);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
    position: relative;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: var(--gray-50);
}

.nav-link.cta-link {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-full);
    font-weight: 600;
}

.nav-link.cta-link:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--gray-600);
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
}

/* 现代化英雄区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: 5%;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-20) 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    border: 1px solid var(--gray-200);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
    color: var(--gray-900);
}

.title-line {
    display: block;
}

.title-line.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    margin-bottom: var(--spacing-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    justify-content: center;
    margin-bottom: var(--spacing-12);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-12);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-1);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
}

/* 现代化按钮系统 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* 现代化区域样式 */
section {
    padding: var(--spacing-24) 0;
}

/* 页面标题区域 */
.page-header {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: var(--spacing-20) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23000" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.page-header p {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--gray-50);
    color: var(--primary-color);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    line-height: 1.7;
}

/* 现代化服务卡片 */
.services {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23000" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.4;
}

.education-services {
    background: white;
}

.education-services h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.section-intro {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-16);
    line-height: 1.7;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-8);
    position: relative;
    z-index: 2;
}

.service-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

.service-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

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

.service-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: rgba(37, 99, 235, 0.3);
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-6);
    color: white;
    font-size: var(--font-size-2xl);
    position: relative;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

.service-icon::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover .service-icon::before {
    opacity: 0.3;
}

.service-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
    line-height: 1.3;
    transition: color 0.3s ease;
}

.service-card:hover .service-content h3 {
    color: var(--primary-color);
}

.service-content p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-4);
    line-height: 1.7;
    font-size: var(--font-size-base);
}

.service-features {
    list-style: none;
    margin-bottom: var(--spacing-6);
    flex: 1;
}

.service-features li {
    padding: var(--spacing-2) 0;
    color: var(--gray-600);
    position: relative;
    padding-left: var(--spacing-6);
    font-size: var(--font-size-sm);
    transition: all 0.3s ease;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-1);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: var(--spacing-2);
    color: var(--success-color);
    font-weight: 700;
    font-size: var(--font-size-base);
    width: 20px;
    height: 20px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.service-card:hover .service-features li::before {
    background: var(--success-color);
    color: white;
    transform: scale(1.1);
}

.service-features li:hover {
    color: var(--gray-800);
    background: rgba(37, 99, 235, 0.05);
    padding-left: var(--spacing-8);
}

.service-action {
    margin-top: auto;
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--gray-200);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all 0.3s ease;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-lg);
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.service-link:hover {
    gap: var(--spacing-3);
    color: white;
    background: var(--primary-color);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

/* 商务服务样式 */
.business-services {
    background: white;
    padding: var(--spacing-24) 0;
}

.business-services h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--spacing-8);
    position: relative;
    z-index: 2;
}

.business-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color), var(--success-color));
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

.business-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.business-card:hover::after {
    opacity: 1;
}

.business-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: rgba(6, 182, 212, 0.3);
}

.business-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-6);
    color: white;
    font-size: var(--font-size-2xl);
    position: relative;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.business-card:hover .business-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

.business-icon::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.business-card:hover .business-icon::before {
    opacity: 0.3;
}

.business-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
    line-height: 1.3;
    transition: color 0.3s ease;
}

.business-card:hover h3 {
    color: var(--secondary-color);
}

.business-card p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-4);
    line-height: 1.7;
    font-size: var(--font-size-base);
}

.business-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-3);
    flex: 1;
}

.business-features .feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2);
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    transition: all 0.3s ease;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-1);
}

.business-features .feature-item i {
    color: var(--success-color);
    font-weight: 700;
    font-size: var(--font-size-base);
    width: 20px;
    height: 20px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.business-card:hover .business-features .feature-item i {
    background: var(--success-color);
    color: white;
    transform: scale(1.1);
}

.business-features .feature-item:hover {
    color: var(--gray-800);
    background: rgba(6, 182, 212, 0.05);
    padding-left: var(--spacing-3);
}

/* 服务流程样式 */
.service-process {
    background: var(--gray-50);
    padding: var(--spacing-24) 0;
}

.service-process h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: var(--spacing-16);
    line-height: 1.2;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
}

.step-item {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
    position: relative;
    text-align: center;
}

.step-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    margin: 0 auto var(--spacing-4);
    position: relative;
}

.step-number::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.step-item:hover .step-number::before {
    opacity: 0.3;
}

.step-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
}

.step-content p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* 成功案例样式 */
.success-cases {
    background: white;
    padding: var(--spacing-24) 0;
}

.success-cases h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: var(--spacing-16);
    line-height: 1.2;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-8);
}

.case-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(135deg, var(--success-color), var(--accent-color), var(--primary-color));
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

.case-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: rgba(16, 185, 129, 0.3);
}

.case-image {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--success-color), var(--accent-color));
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-6);
    color: white;
    font-size: var(--font-size-2xl);
    position: relative;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.case-card:hover .case-image {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

.case-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
    line-height: 1.3;
    transition: color 0.3s ease;
}

.case-card:hover h3 {
    color: var(--success-color);
}

.case-card p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-6);
    line-height: 1.7;
    font-size: var(--font-size-base);
    flex: 1;
}

.case-stats {
    display: flex;
    gap: var(--spacing-6);
    justify-content: center;
    margin-top: auto;
}

.case-stats .stat {
    text-align: center;
}

.case-stats .stat-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--success-color);
    margin-bottom: var(--spacing-1);
}

.case-stats .stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
}

/* 联系CTA样式 */
.contact-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-24) 0;
    text-align: center;
}

.cta-content h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.cta-content p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-8);
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-content .btn {
    background: white;
    color: var(--primary-color);
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.cta-content .btn:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* 联系我们页面样式 */
.contact-info-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: var(--spacing-24) 0;
    position: relative;
    overflow: hidden;
}

.contact-info-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="contact-dots" width="30" height="30" patternUnits="userSpaceOnUse"><circle cx="15" cy="15" r="1" fill="%23000" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23contact-dots)"/></svg>');
    opacity: 0.6;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-8);
    position: relative;
    z-index: 2;
}

.contact-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

.contact-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.contact-card:hover::after {
    opacity: 1;
}

.contact-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: rgba(37, 99, 235, 0.3);
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-6);
    color: white;
    font-size: var(--font-size-3xl);
    position: relative;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.contact-card:hover .contact-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

.contact-icon::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.contact-card:hover .contact-icon::before {
    opacity: 0.3;
}

.contact-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
    line-height: 1.3;
    transition: color 0.3s ease;
}

.contact-card:hover h3 {
    color: var(--primary-color);
}

.contact-card p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-2);
    line-height: 1.6;
    font-size: var(--font-size-base);
}

.contact-card p:first-of-type {
    font-weight: 600;
    color: var(--gray-800);
    font-size: var(--font-size-lg);
}

/* 联系表单样式 */
.contact-form-section {
    background: white;
    padding: var(--spacing-24) 0;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-12);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

.form-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.form-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
    line-height: 1.2;
}

.form-header p {
    color: var(--gray-600);
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-6);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-4) var(--spacing-5);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
    font-family: inherit;
    background: var(--gray-50);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

.checkbox-group {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    cursor: pointer;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--gray-600);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin: 0;
    accent-color: var(--primary-color);
}

.privacy-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.privacy-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.btn-submit {
    align-self: center;
    padding: var(--spacing-4) var(--spacing-12);
    font-size: var(--font-size-lg);
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    box-shadow: var(--shadow-md);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-submit:active {
    transform: translateY(0);
}

/* 常见问题样式 */
.faq-section {
    background: var(--gray-50);
    padding: var(--spacing-24) 0;
}

.faq-section h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: var(--spacing-16);
    line-height: 1.2;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-6);
}

.faq-item {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
    overflow: hidden;
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.faq-question {
    padding: var(--spacing-6);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--gray-100);
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-question h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
    line-height: 1.4;
}

.faq-question i {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--spacing-6) var(--spacing-6);
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-top: var(--spacing-4);
}

.faq-answer p {
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

/* 地图位置样式 */
.map-section {
    background: white;
    padding: var(--spacing-24) 0;
}

.map-section h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: var(--spacing-16);
    line-height: 1.2;
}

.map-container {
    max-width: 800px;
    margin: 0 auto;
}

.map-placeholder {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-2xl);
    padding: var(--spacing-16);
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.map-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.map-placeholder i {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-4);
    position: relative;
    z-index: 2;
}

.map-placeholder h3 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-4);
    position: relative;
    z-index: 2;
}

.map-placeholder p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2);
    opacity: 0.9;
    position: relative;
    z-index: 2;
}

/* 现代化关于我们 */
.about {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

.about-text h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--spacing-6);
    line-height: 1.2;
}

.about-description {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--spacing-8);
    line-height: 1.7;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.feature-item {
    display: flex;
    gap: var(--spacing-4);
    align-items: flex-start;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-1);
}

.feature-content p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.image-placeholder {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-4);
}

.image-stats {
    display: flex;
    gap: var(--spacing-8);
    justify-content: center;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    margin-bottom: var(--spacing-1);
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* 现代化联系我们 */
.contact {
    background: var(--gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
}

.contact-info-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.contact-card {
    background: white;
    padding: var(--spacing-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-4);
}

.contact-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2);
}

.contact-card p {
    font-size: var(--font-size-base);
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.contact-card span {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.contact-form {
    background: white;
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.form-header {
    margin-bottom: var(--spacing-6);
}

.form-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2);
}

.form-header p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

.contact-form-inner {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
    font-family: inherit;
    background: var(--gray-50);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    align-self: flex-start;
    padding: var(--spacing-3) var(--spacing-8);
    font-size: var(--font-size-base);
}

/* 现代化页脚 */
.footer {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: white;
    padding: var(--spacing-20) 0 var(--spacing-8);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="footer-dots" width="40" height="40" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="%23fff" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23footer-dots)"/></svg>');
    opacity: 0.4;
}

.footer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(37, 99, 235, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-16);
    position: relative;
    z-index: 2;
}

.footer-section:first-child {
    padding-right: var(--spacing-8);
    text-align: left;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
    justify-content: flex-start;
}

.footer-logo .logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: all 0.3s ease;
}

.footer-logo .logo-icon::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.footer-logo:hover .logo-icon::before {
    opacity: 0.3;
}

.footer-logo:hover .logo-icon {
    transform: scale(1.05) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

.footer-logo .logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: white;
}

.footer-description {
    color: var(--gray-300);
    margin-bottom: var(--spacing-8);
    line-height: 1.7;
    font-size: var(--font-size-base);
}

.social-links {
    display: flex;
    gap: var(--spacing-4);
    justify-content: flex-start;
    align-items: center;
}

.social-link {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-300);
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    line-height: 48px;
}

.social-link i {
    font-size: var(--font-size-lg);
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    text-align: center;
    vertical-align: middle;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: left 0.3s ease;
    z-index: -1;
}

.social-link:hover::before {
    left: 0;
}

.social-link:hover {
    color: white;
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
    border-color: rgba(37, 99, 235, 0.4);
    background: rgba(37, 99, 235, 0.2);
}

.social-link:hover i {
    color: white;
    transform: translate(-50%, -50%) scale(1.1);
}

.footer-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    color: white;
    position: relative;
    padding-bottom: var(--spacing-2);
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
}

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

.footer-section li {
    margin-bottom: var(--spacing-3);
}

.footer-section a {
    color: var(--gray-300);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: var(--font-size-sm);
    position: relative;
    padding-left: var(--spacing-2);
}

.footer-section a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 1px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.footer-section a:hover {
    color: white;
    padding-left: var(--spacing-4);
}

.footer-section a:hover::before {
    width: 8px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    color: var(--gray-300);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    padding: var(--spacing-3) var(--spacing-4);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-lg);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: left 0.6s ease;
}

.contact-item:hover::before {
    left: 100%;
}

.contact-item:hover {
    color: white;
    background: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.3);
    transform: translateX(4px);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.2);
}

.contact-item i {
    color: var(--primary-color);
    width: 20px;
    height: 20px;
    font-size: var(--font-size-base);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.15);
    border-radius: var(--radius-md);
    flex-shrink: 0;
    transition: all 0.3s ease;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.contact-item:hover i {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-8);
    position: relative;
    z-index: 2;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-6);
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: var(--spacing-8);
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all 0.3s ease;
    position: relative;
    padding: var(--spacing-1) 0;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

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

.footer-bottom p a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom p a:hover {
    color: var(--primary-color);
}

/* 回到顶部按钮 */
.scroll-to-top {
    position: fixed;
    bottom: var(--spacing-8);
    right: var(--spacing-8);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.scroll-to-top i {
    font-size: var(--font-size-lg);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-4);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-8) 0;
        gap: var(--spacing-4);
    }

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

    .nav-toggle {
        display: flex;
    }

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

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-description {
        font-size: var(--font-size-lg);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        gap: var(--spacing-8);
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-12);
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-12);
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .service-card {
        padding: var(--spacing-6);
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-xl);
    }
    
    .business-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .business-card {
        padding: var(--spacing-6);
    }
    
    .business-icon {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-xl);
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .contact-card {
        padding: var(--spacing-6);
    }
    
    .contact-icon {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-2xl);
    }
    
    .form-container {
        padding: var(--spacing-8);
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

    .footer-section:first-child {
        padding-right: 0;
        text-align: center;
    }

    .footer-logo {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-4);
    }

    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }

    .scroll-to-top {
        bottom: var(--spacing-4);
        right: var(--spacing-4);
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-3);
    }

    .hero {
        padding: var(--spacing-16) 0;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .service-card,
    .contact-form {
        padding: var(--spacing-4);
    }

    .form-row {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .service-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    .service-content h3 {
        font-size: var(--font-size-lg);
    }
    
    .service-content p {
        font-size: var(--font-size-sm);
    }
    
    .business-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .business-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    .business-card h3 {
        font-size: var(--font-size-lg);
    }
    
    .business-card p {
        font-size: var(--font-size-sm);
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .step-item {
        padding: var(--spacing-6);
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .case-card {
        padding: var(--spacing-6);
    }
    
    .case-image {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    .case-card h3 {
        font-size: var(--font-size-lg);
    }
    
    .case-card p {
        font-size: var(--font-size-sm);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .contact-card {
        padding: var(--spacing-4);
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
    }
    
    .contact-card h3 {
        font-size: var(--font-size-lg);
    }
    
    .contact-card p {
        font-size: var(--font-size-sm);
    }
    
    .form-container {
        padding: var(--spacing-6);
    }
    
    .form-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .form-header p {
        font-size: var(--font-size-base);
    }
    
    .form-group label {
        font-size: var(--font-size-xs);
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: var(--spacing-3) var(--spacing-4);
        font-size: var(--font-size-sm);
    }
    
    .btn-submit {
        padding: var(--spacing-3) var(--spacing-8);
        font-size: var(--font-size-base);
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
    }
    
    .faq-question {
        padding: var(--spacing-4);
    }
    
    .faq-question h3 {
        font-size: var(--font-size-base);
    }
    
    .faq-answer {
        padding: 0 var(--spacing-4) var(--spacing-4);
    }
    
    .map-placeholder {
        padding: var(--spacing-12);
    }
    
    .map-placeholder i {
        font-size: var(--font-size-4xl);
    }
    
    .map-placeholder h3 {
        font-size: var(--font-size-2xl);
    }
    
    .map-placeholder p {
        font-size: var(--font-size-base);
    }

    .footer {
        padding: var(--spacing-16) 0 var(--spacing-6);
    }

    .footer-content {
        gap: var(--spacing-6);
        margin-bottom: var(--spacing-12);
    }

    .footer-logo .logo-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }

    .footer-logo .logo-text {
        font-size: var(--font-size-lg);
    }

    .footer-description {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-6);
    }

    .social-link {
        width: 40px;
        height: 40px;
    }

    .footer-section h3 {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-4);
    }

    .footer-section li {
        margin-bottom: var(--spacing-2);
    }

    .footer-section a {
        font-size: var(--font-size-xs);
    }

    .contact-item {
        font-size: var(--font-size-xs);
        gap: var(--spacing-2);
    }

    .contact-item i {
        width: 16px;
        font-size: var(--font-size-sm);
    }

    .footer-bottom {
        padding-top: var(--spacing-6);
    }

    .footer-bottom p {
        font-size: var(--font-size-xs);
    }

    .footer-links {
        gap: var(--spacing-4);
    }

    .footer-links a {
        font-size: var(--font-size-xs);
    }

    .scroll-to-top {
        bottom: var(--spacing-3);
        right: var(--spacing-3);
        width: 40px;
        height: 40px;
    }

    .scroll-to-top i {
        font-size: var(--font-size-base);
    }
}

/* 动画和过渡效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

.scale-in {
    animation: scaleIn 0.6s ease-out;
}

/* 服务卡片进入动画 */
.service-card {
    opacity: 0;
    transform: translateY(50px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.service-card:nth-child(1) { animation-delay: 0.1s; }
.service-card:nth-child(2) { animation-delay: 0.2s; }
.service-card:nth-child(3) { animation-delay: 0.3s; }
.service-card:nth-child(4) { animation-delay: 0.4s; }
.service-card:nth-child(5) { animation-delay: 0.5s; }
.service-card:nth-child(6) { animation-delay: 0.6s; }

/* 悬停时的脉冲效果 */
.service-card:hover .service-icon {
    animation: pulse 2s ease-in-out infinite;
}

/* 滚动触发动画 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}