/* CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Root Variables */
:root {
    --primary-color: #e63946;
    --primary-dark: #c1121f;
    --secondary-color: #1d3557;
    --accent-color: #457b9d;
    --text-dark: #1d3557;
    --text-muted: #6b7280;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Body & Page */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background: linear-gradient(135deg, #3b0606 0%, #490000 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary-color);
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: var(--transition);
}

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

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
}

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

/* Main */
.main {
    flex: 1;
    padding: 80px 0;
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
    align-items: start;
}

.hero-content {
    background: var(--bg-white);
    padding: 60px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.hero-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--secondary-color));
}

/* Badge */
.badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}

/* Hero Title */
.hero-title {
    font-size: 56px;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.1;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 32px;
    font-weight: 500;
}

.hero-description {
    margin-bottom: 40px;
}

.hero-description p {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.hero-description .english {
    font-size: 16px;
    color: var(--text-muted);
    font-style: italic;
}

/* Contact Section */
.contact-section {
    padding-top: 32px;
    border-top: 2px solid var(--border-color);
}

.contact-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.contact-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-icon {
    font-size: 18px;
}

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

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

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

.btn-secondary:hover {
    background: #14253d;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--text-dark);
    border-color: var(--border-color);
}

.btn-outline:hover {
    background: var(--bg-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Hero Sidebar */
.hero-sidebar {
    position: sticky;
    top: 100px;
}

.contact-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.contact-avatar {
    margin-bottom: 24px;
}

.contact-avatar img {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 4px solid white;
    box-shadow: var(--shadow-md);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--secondary-color);
    color: white;
}

.contact-icon {
    font-size: 20px;
}

.contact-text {
    font-size: 15px;
    font-weight: 500;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
    padding: 40px 0;
    margin-top: auto;
}

.footer-content {
    text-align: center;
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
    }
    
    .hero-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 16px 0;
    }
    
    .logo a {
        font-size: 20px;
    }
    
    .nav {
        display: none;
    }
    
    .main {
        padding: 40px 0;
    }
    
    .hero-content {
        padding: 32px 24px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .contact-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-content {
        padding: 24px 20px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .contact-card {
        padding: 24px;
    }
    
    .contact-avatar img {
        width: 100px;
        height: 100px;
    }
}

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

.hero-content,
.contact-card {
    animation: fadeInUp 0.6s ease-out;
}

.contact-card {
    animation-delay: 0.2s;
}