/* Reset & Base Styles */
:root {
    --primary-color: #2c3e50;
    --accent-color: #d4af37; /* Gold for premium feel */
    --text-color: #4a4a4a;
    --bg-light: #f8f9fa; /* Snow white */
    --white: #ffffff;
    --hero-overlay: rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Noto Sans TC', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Shippori Mincho', serif; /* Japanese Serif style */
    color: var(--primary-color);
    font-weight: 700;
}

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

.text-center { text-align: center; }
.section-padding { padding: 80px 0; }
.bg-light { background-color: var(--bg-light); }

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 15px 0;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    overflow: hidden;
}

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

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--hero-overlay);
}

.hero-content {
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--white);
    letter-spacing: 5px;
}

.hero h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 15px;
    color: var(--white);
    opacity: 0.9;
}

.hero p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 2px;
}

/* Features Section */
.section-header {
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.3);
}

.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.25rem;
}

/* Flavors Section */
.product-showcase {
    display: flex;
    align-items: center;
    gap: 60px;
}

.product-image {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
}

.product-image img {
    max-width: 100%;
    height: auto;
    width: 300px;
    z-index: 2;
    filter: drop-shadow(0 20px 30px rgba(0,0,0,0.15));
}

.decoration-circle {
    position: absolute;
    width: 400px;
    height: 400px;
    background: #ffffff;
    border-radius: 50%;
    z-index: 1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.product-details {
    flex: 1;
}

.flavor-item {
    margin-bottom: 40px;
    padding-left: 30px;
    border-left: 3px solid var(--accent-color);
}

.flavor-item h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.flavor-item .tag {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 0.8rem;
    font-weight: 400;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Origin Section */
.origin-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.origin-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.origin-list {
    list-style: none;
    margin-top: 30px;
}

.origin-list li {
    margin-bottom: 25px;
}

.origin-list strong {
    color: var(--primary-color);
    font-size: 1.1rem;
    display: block;
    margin-bottom: 5px;
}

/* Comparison Table */
.table-wrapper {
    overflow-x: auto;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    border-radius: 10px;
    background: white;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.comparison-table th, 
.comparison-table td {
    padding: 20px 30px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.comparison-table th {
    background: #f1f3f5;
    font-weight: 700;
    color: var(--primary-color);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table .highlight {
    color: var(--primary-color);
    font-weight: 600;
    background: rgba(212, 175, 55, 0.05);
}

.comparison-table th.highlight {
    background: rgba(212, 175, 55, 0.1);
    color: #8a6d1f;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer h3 {
    color: var(--white);
    margin-bottom: 10px;
}

.footer .copyright {
    margin-top: 40px;
    font-size: 0.8rem;
    opacity: 0.6;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
}

/* Animations */
.fade-in, .fade-in-up, .fade-in-left, .fade-in-right {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, transform;
}

.fade-in-up { transform: translateY(30px); }
.fade-in-left { transform: translateX(-30px); }
.fade-in-right { transform: translateX(30px); }

.visible {
    opacity: 1;
    transform: none;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .product-showcase { flex-direction: column; gap: 30px; text-align: center; }
    .origin-grid { grid-template-columns: 1fr; }
    .origin-image { order: -1; }
    .nav-links { display: none; } /* Simplify for now or add JS menu later */
    .feature-card:hover { transform: none; }
}