:root {
    /* Color Palette */
    --bg-color: #faf9f7;
    --text-primary: #2c3e50;
    --text-secondary: #5a6c7d;
    --color-tea: #3d80b8; /* Calming Blue */
    --color-sono: #6d4b9f; /* Night Purple */
    --color-tdah: #d37326; /* Vibrant Orange/Amber */
    --color-desfralde: #3b8c4c; /* Fresh Green */
    --primary-action: #ab576c; /* Soft rose for global action */

    --font-main: 'Outfit', sans-serif;
    --font-display: 'Playfair Display', serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: var(--font-display);
    line-height: 1.2;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #1e293b;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    height: 50px;
    object-fit: contain;
}

.navbar nav a {
    text-decoration: none;
    color: #e2e8f0;
    font-weight: 500;
    margin-left: 30px;
    font-size: 1rem;
    position: relative;
    transition: color 0.3s;
}

.navbar nav a:hover {
    color: #ffffff;
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 100px;
    position: relative;
    overflow: hidden;
}

.hero-background-blur {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(171,87,108,0.15) 0%, rgba(250,249,247,0) 70%);
    z-index: -1;
    filter: blur(60px);
}

.hero-content {
    max-width: 800px;
}

.eyebrow {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-action);
    text-transform: uppercase;
    display: block;
    margin-bottom: 15px;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 25px;
}

.hero h1 span {
    font-size: 2.5rem;
    font-style: italic;
    color: var(--text-secondary);
    display: block;
    margin-top: 5px;
    font-family: var(--font-main);
    font-weight: 300;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 400;
}

.btn {
    display: inline-block;
    padding: 16px 36px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    color: white;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(0,0,0,0.15);
}

.btn-primary { background: linear-gradient(135deg, #c96781, #ab576c); }
.btn-tea { background: linear-gradient(135deg, #539cdb, #3d80b8); }
.btn-sono { background: linear-gradient(135deg, #875ed1, #6d4b9f); }
.btn-tdah { background: linear-gradient(135deg, #ef8c3b, #d37326); }
.btn-desfralde { background: linear-gradient(135deg, #4cb061, #3b8c4c); }

/* Product Sections */
.product-section {
    padding: 120px 0;
    border-bottom: 1px solid rgba(0,0,0,0.03);
}

.product-section:nth-child(even) {
    background-color: #ffffff;
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas: "content image";
    gap: 80px;
    align-items: center;
}

.product-section.reverse .product-grid {
    grid-template-areas: "image content";
}

.product-grid > div:nth-child(1) { grid-area: content; }
.product-grid > div:nth-child(2) { grid-area: image; }
.product-section.reverse .product-grid > div:nth-child(1) { grid-area: image; }
.product-section.reverse .product-grid > div:nth-child(2) { grid-area: content; }

.product-image {
    position: relative;
    text-align: center;
}

.product-image img {
    max-width: 85%;
    height: auto;
    position: relative;
    z-index: 2;
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.5s ease;
}

.product-image:hover img {
    transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60%;
    height: 60%;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
    opacity: 0.3;
}

.tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.product-content h2 {
    font-size: 3rem;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.product-content p {
    font-size: 1.15rem;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.product-content p强, .product-content p strong {
    color: var(--text-primary);
}

.product-content .btn {
    margin-top: 25px;
}

/* Footer */
.footer {
    background-color: #f0eee9;
    padding: 80px 0 40px;
    text-align: center;
}

.footer-logo {
    height: 45px;
    opacity: 0.7;
    margin-bottom: 20px;
}

.footer-links {
    margin: 30px 0;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 15px;
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--primary-action);
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-top: 40px;
}

/* Animations */
.fade-in-up {
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(40px); }
    100% { opacity: 1; transform: translateY(0); }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
    .product-grid, .product-section.reverse .product-grid {
        grid-template-columns: 1fr;
        grid-template-areas: "image" "content";
        gap: 50px;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero h1 span {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-content {
        flex-direction: column;
        height: auto;
        padding: 15px 0;
    }
    
    .navbar nav {
        margin-top: 15px;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }
    
    .navbar nav a {
        margin: 0;
        font-size: 0.9rem;
    }
    
    .hero {
        align-items: flex-start;
        padding-top: 180px;
        padding-bottom: 60px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h1 span {
        font-size: 1.6rem;
    }
    
    .product-content h2 {
        font-size: 2.2rem;
    }
}