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

body {
    font-family: 'Times New Roman', Times, serif;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #000000 100%);
    background-attachment: fixed;
    color: white;
    line-height: 1.6;
}

nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: transparent;
    z-index: 1000;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-nav {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.logo-nav span {
    font-family: 'Broadway', cursive;
    font-weight: 400;
    letter-spacing: 0.05em;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
}

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

.nav-cta {
    background: white;
    color: black !important;
    padding: 0.6rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
}

.nav-cta:hover {
    background: rgba(255, 255, 255, 0.9);
}

main {
    padding-top: 0;
}

.hero {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
}

.hero-content {
    max-width: 900px;
    animation: fadeIn 1s ease;
}

.hero-logo {
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero h1 {
    font-size: 5.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
    font-family: 'PMingLiU-ExtB', 'MingLiU-ExtB', serif;
}

.hero p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2.5rem;
    line-height: 1.75;
    font-weight: 400;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.trust-badges {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.trust-badges span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.cta-button {
    display: inline-block;
    padding: 1.1rem 2.8rem;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 10px;
    transition: all 0.3s ease;
    letter-spacing: 0.01em;
}

.cta-button.primary {
    background: white;
    color: black;
}

.cta-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.95);
}

.cta-button.secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-button.secondary:hover {
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.05);
}

.features {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.modal-content {
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    max-width: 800px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 3rem;
    position: relative;
    animation: slideUp 0.3s ease;
}

.close {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: color 0.2s;
}

.close:hover {
    color: white;
}

#modalBody h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.modal-section {
    margin-bottom: 2.5rem;
}

.modal-section h4 {
    font-size: 1.3rem;
    margin-bottom: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.tech-list {
    list-style: none;
    padding: 0;
}

.tech-list li {
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    line-height: 1.6;
}

.tech-list li:last-child {
    border-bottom: none;
}

.tech-list strong {
    color: rgba(255, 255, 255, 0.9);
}

.modal-section p {
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-content::-webkit-scrollbar {
    width: 8px;
}

.modal-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
}

.feature-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.15);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.feature-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.98rem;
    line-height: 1.65;
    font-weight: 400;
}

footer {
    text-align: center;
    padding: 3rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    .hero-logo img { width: 60px; height: 60px; }
    .nav-links { gap: 1.5rem; }
    .feature-grid { grid-template-columns: 1fr; }
    .cta-group { flex-direction: column; width: 100%; }
    .cta-button { width: 100%; text-align: center; }
    .trust-badges { flex-direction: column; gap: 0.8rem; }
}