/* CSS Variables */
:root {
    --primary-color: #1a365d;
    --secondary-color: #d69e2e;
    --accent-color: #f7fafc;
    --text-color: #2d3748;
    --light-gray: #e2e8f0;
    --white: #ffffff;
    --dark-gray: #4a5568;
    --success-color: #38a169;
    --error-color: #e53e3e;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

/* Navigation */
.prediama-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--light-gray);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.prediama-company-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

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

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

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

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

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

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

.prediama-nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

/* Main Content */
.main-content {
    margin-top: 80px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 150px 0 100px;
    text-align: left;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: bold;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

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

.contact-info p {
    color: var(--dark-gray);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--accent-color);
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
}

.contact-icon {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
    height: 50px;
}

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

.contact-item p {
    color: var(--dark-gray);
    margin: 0;
    line-height: 1.5;
}

/* Contact Form */
.contact-form {
    background-color: var(--accent-color);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

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

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

/* Map Section */
.map-section {
    padding: 80px 0;
    background-color: var(--accent-color);
}

.map-section h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: left;
    font-weight: bold;
}

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

.map-placeholder {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    padding: 4rem;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.map-content {
    color: var(--white);
}

.map-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: bold;
}

.map-content p {
    margin-bottom: 1rem;
    opacity: 0.9;
    font-size: 1.1rem;
}

.map-content .btn-secondary {
    margin-top: 1rem;
}

/* Footer */
.footer {
    background-color: #1a365d;
    color: #ffffff;
    padding: 3rem 0 1rem;
}

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

.footer-section h4 {
    color: #d69e2e;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.6;
    margin-bottom: 0;
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-section ul li a {
    color: #cbd5e0;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.footer-section ul li a:hover {
    color: #d69e2e;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    margin-top: 0;
}

.footer-bottom p {
    opacity: 0.8;
    margin: 0;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .prediama-nav-menu {
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        display: none;
    }
    
    .prediama-nav-toggle {
        display: flex;
    }
    
    .prediama-nav {
        padding: 1rem 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

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

    .contact-info h2,
    .contact-form h2 {
        font-size: 2rem;
    }

    .contact-form {
        padding: 2rem;
    }

    .contact-item {
        flex-direction: column;
        text-align: left;
    }

    .map-placeholder {
        padding: 2rem;
    }

    .map-content h3 {
        font-size: 1.5rem;
    }

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

@media (max-width: 480px) {
    .hero {
        padding: 120px 0 80px;
    }

    .contact-section {
        padding: 60px 0;
    }

    .map-section {
        padding: 60px 0;
    }

    .btn-primary,
    .btn-secondary {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* AI 图片生成提示 */
/*
1. 联系我们页面Hero背景图 - 现代办公环境，墨西哥城市天际线，金融科技感
2. 联系信息图标 - 专业简洁的图标设计，与金融主题相关
3. 办公室内部照片 - 现代化金融办公环境，专业团队工作场景
4. 地图位置图 - 墨西哥城市地图，突出Av. Paseo de la Reforma位置
5. 客户服务图 - 专业的客户服务代表，热情友好的服务态度
6. 电话咨询场景 - 专业的客户支持，金融咨询服务
*/