:root {
    --bg-dark: #0a0a0f;
    --bg-card: rgba(20, 20, 30, 0.6);
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b5;
    --accent-blue: #3a86ff;
    --accent-glow: rgba(58, 134, 255, 0.5);
    --border-light: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Glassmorphism utility */
.glassmorphism {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-light);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 5%;
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.logo-zh {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 2px;
}

.logo-en {
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 4px;
    color: var(--text-secondary);
    border-left: 1px solid var(--text-secondary);
    padding-left: 0.8rem;
}

.contact-btn a {
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    background: transparent;
    border: 1px solid var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.contact-btn a:hover {
    background: var(--text-primary);
    color: var(--bg-dark);
    box-shadow: 0 0 15px var(--border-light);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5%;
    text-align: center;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    animation: slowZoom 20s infinite alternate;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(10, 10, 15, 0.3) 0%, rgba(10, 10, 15, 0.95) 100%);
}

.hero-content {
    max-width: 800px;
    margin-top: 5rem;
    z-index: 1;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #fff, #a0a0b5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.hero-content h2 {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--accent-blue);
    margin-bottom: 2rem;
    letter-spacing: 1px;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    background: var(--accent-blue);
    color: #fff;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px var(--accent-glow);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 30px var(--accent-glow);
}

/* Services Section */
.services {
    padding: 6rem 5%;
    background: var(--bg-dark);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--accent-blue);
    border-radius: 2px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    padding: 2.5rem;
    border-radius: 20px;
    transition: all 0.4s ease;
    cursor: default;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    padding: 2rem 5%;
    margin-bottom: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.5rem;
}

.business {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.email-link {
    font-size: 1.2rem;
    color: var(--accent-blue);
    position: relative;
    display: inline-block;
}

.email-link::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-blue);
    transform-origin: bottom right;
    transition: transform 0.3s ease-out;
}

.email-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.copyright {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.6;
}

/* Animations */
@keyframes slowZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hover-up:hover {
    transform: translateY(-10px);
    background: rgba(30, 30, 45, 0.8);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .hero-content h1 { font-size: 2.5rem; }
    .hero-content h2 { font-size: 1.2rem; }
    .navbar { padding: 1rem 5%; }
    .logo-zh { font-size: 1.2rem; }
    .logo-en { font-size: 0.7rem; }
}