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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --gradient-start: #667eea;
    --gradient-end: #764ba2;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.company-subtitle {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

.lang-btn {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

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

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    padding: 8rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

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

.hero-content h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    font-size: 1.1rem;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

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

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

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    padding: 5rem 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 width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

/* 区块样式 */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.75rem;
    margin-bottom: 3.5rem;
    color: var(--text-dark);
    font-weight: 700;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    border-radius: 2px;
}

/* 特色区域 */
.features {
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background-color: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.4s ease;
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

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

/* 关于预览 */
.about-preview {
    padding: 5rem 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.about-stats {
    display: grid;
    gap: 1.5rem;
}

.stat-item {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: scale(1.05);
}

.stat-item h3 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    font-weight: 800;
}

.stat-item p {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* 服务详情 */
.services-detail {
    padding: 5rem 0;
}

.service-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2.5rem;
    align-items: start;
    margin-bottom: 3rem;
    padding: 3rem;
    background-color: white;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.service-item:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.service-icon {
    font-size: 5rem;
    min-width: 100px;
    text-align: center;
}

.service-content h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2rem;
    font-weight: 700;
}

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

.service-content ul {
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.service-content ul li {
    padding: 0.75rem 1rem;
    padding-left: 2.5rem;
    position: relative;
    color: var(--text-dark);
    background-color: var(--bg-light);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.service-content ul li:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateX(5px);
}

.service-content ul li::before {
    content: "✓";
    position: absolute;
    left: 1rem;
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.service-content ul li:hover::before {
    color: white;
}

/* CTA区域 */
.cta-section {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    text-align: center;
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.cta-section p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

/* 页脚 */
.footer {
    background-color: #111827;
    color: white;
    padding: 4rem 0 1.5rem;
}

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

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.footer-section p {
    color: #d1d5db;
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

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

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

.footer-section a {
    color: #d1d5db;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-section a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* 联系页面 */
.contact-section {
    padding: 5rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 2rem;
    background-color: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.contact-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
}

.contact-icon {
    font-size: 2.5rem;
    min-width: 50px;
}

.contact-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.contact-item p {
    color: var(--text-dark);
    margin: 0.25rem 0;
    line-height: 1.6;
}

/* 联系表单 */
.contact-form-wrapper h2 {
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.contact-form {
    background-color: var(--bg-light);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: white;
}

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

.contact-form button {
    width: 100%;
    cursor: pointer;
}

/* 营业时间 */
.business-hours {
    background-color: var(--bg-light);
}

.hours-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.hours-item {
    background-color: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.hours-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.hours-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.hours-item p {
    color: var(--text-dark);
    font-size: 1.2rem;
    font-weight: 500;
}

/* 法律内容 */
.legal-content {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.legal-text {
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.legal-text h2 {
    color: var(--primary-color);
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    font-weight: 700;
}

.legal-text h2:first-child {
    margin-top: 0;
}

.legal-text h3 {
    color: var(--secondary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

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

.legal-text ul {
    margin-bottom: 1.5rem;
    padding-left: 2.5rem;
}

.legal-text ul li {
    color: var(--text-light);
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.contact-details {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
}

.contact-details p {
    margin-bottom: 0.75rem;
    color: white;
    line-height: 1.7;
}

.contact-details strong {
    color: white;
    font-weight: 700;
}

/* 响应式设计 */
@media (max-width: 968px) {
    .nav-menu {
        gap: 1rem;
    }

    .about-content,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .service-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .service-icon {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem;
    }

    .hero-content h2 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.2rem;
    }

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

    .page-header h1 {
        font-size: 2.25rem;
    }

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

    .legal-text {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 1.75rem;
    }

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

    .page-header h1 {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }

    .service-item {
        padding: 1.5rem;
    }

    .legal-text {
        padding: 1.5rem;
    }
}