* { margin: 0; padding: 0; box-sizing: border-box; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* 产品网格 */
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 2rem; }
.product-card { border-radius: 12px; overflow: hidden; transition: transform 0.3s, box-shadow 0.3s; }
.product-card:hover { transform: translateY(-5px); }
.product-card img { width: 100%; height: 200px; object-fit: cover; }
.product-card h3 { font-size: 1.25rem; margin: 1rem 0 0.5rem; }
.product-card p { font-size: 0.9rem; opacity: 0.8; padding: 0 1rem 1rem; }
.product-card .features { padding: 0 1rem 1rem; font-size: 0.85rem; }
.product-card .features li { margin: 0.25rem 0; }

/* 案例网格 */
.cases-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 2rem; }
.case-card { border-radius: 12px; overflow: hidden; }
.case-card img { width: 100%; height: 250px; object-fit: cover; }
.case-card h3 { font-size: 1.25rem; margin: 1rem 0 0.5rem; }
.case-card .client { font-size: 0.9rem; opacity: 0.7; margin-bottom: 0.5rem; }
.case-card p { font-size: 0.9rem; opacity: 0.8; padding: 0 1rem; }
.case-card .results { padding: 1rem; font-size: 0.85rem; }
.case-card .results li { margin: 0.25rem 0; }

/* 联系表单 */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.contact-form input, .contact-form textarea, .contact-form select {
    padding: 1rem; border: 1px solid #e5e7eb; border-radius: 8px; font-family: inherit;
}
.contact-form button { padding: 1rem 2rem; border: none; border-radius: 8px; cursor: pointer; font-weight: 600; }

/* 法律部分 */
.legal-section { padding: 4rem 2rem; }
.legal-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 3rem; }
.legal-item h3 { font-size: 1.25rem; margin-bottom: 1rem; }
.legal-item p { font-size: 0.9rem; line-height: 1.8; opacity: 0.8; }

@media (max-width: 768px) {
    .products-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .legal-grid { grid-template-columns: 1fr; }
}

.nature-body { font-family: 'Nunito', sans-serif; background: #f8faf5; color: #2d3436; }

/* Nature Header New Styles */
.nature-sticky-header { position: sticky; top: 0; z-index: 1000; }
.nature-header { background: rgba(248,250,245,0.98); backdrop-filter: blur(10px); padding: 1.5rem 3rem; }
.nature-header-inner { max-width: 1400px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.nature-brand { display: flex; align-items: center; gap: 0.75rem; }
.nature-leaf { font-size: 1.75rem; }
.nature-logo { font-family: 'Lora', serif; font-size: 1.5rem; font-weight: 600; color: #2d5a27; text-decoration: none; }
.nature-nav-primary { display: flex; align-items: center; gap: 2.5rem; }
.nature-nav-secondary { display: flex; align-items: center; gap: 2.5rem; }
.nature-nav-link { display: flex; align-items: center; gap: 0.5rem; color: #4a5568; text-decoration: none; padding: 0.75rem 1rem; border-radius: 8px; transition: all 0.3s; font-weight: 500; }
.nature-nav-link:hover { color: #2d5a27; background: rgba(45,90,39,0.1); }
.nature-nav-link i { font-size: 1rem; color: #2d5a27; }
.nature-cta { display: flex; align-items: center; gap: 0.5rem; background: linear-gradient(135deg, #2d5a27, #4ade80); color: #fff; text-decoration: none; padding: 0.875rem 1.75rem; border-radius: 8px; font-weight: 600; transition: all 0.3s; }
.nature-cta:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(45,90,39,0.3); }

.nature-hero { min-height: 100vh; background-size: cover; background-position: center; display: flex; align-items: center; justify-content: center; position: relative; }
.hero-overlay { position: absolute; inset: 0; background: rgba(45,90,39,0.4); }
.hero-content { position: relative; z-index: 1; text-align: center; color: #fff; padding: 2rem; }
.hero-content h1 { font-family: 'Lora', serif; font-size: 4rem; margin-bottom: 1rem; }
.eco-badge { display: inline-block; background: rgba(255,255,255,0.2); padding: 0.5rem 1rem; border-radius: 20px; margin-bottom: 1rem; }

.nature-about { padding: 6rem 2rem; }
.nature-about h2 { font-family: 'Lora', serif; font-size: 2.5rem; color: #2d5a27; margin-bottom: 1rem; }
.nature-about .intro { font-size: 1.25rem; margin-bottom: 1rem; }

.nature-products { padding: 6rem 2rem; background: #fff; }
.nature-products h2 { font-family: 'Lora', serif; font-size: 2.5rem; text-align: center; color: #2d5a27; margin-bottom: 3rem; }
.nature-products .product-card { background: #f8faf5; border-left: 4px solid #4ade80; padding: 1rem; }

.nature-cases { padding: 6rem 2rem; }
.nature-cases h2 { font-family: 'Lora', serif; font-size: 2.5rem; text-align: center; color: #2d5a27; margin-bottom: 3rem; }
.nature-cases .case-card { background: #f8faf5; border-left: 4px solid #4ade80; }

.nature-contact { padding: 6rem 2rem; background: #2d5a27; color: #fff; text-align: center; }
.nature-contact h2 { font-family: 'Lora', serif; font-size: 2.5rem; margin-bottom: 1rem; }

/* Nature Contact new styles */
.nature-contact-wrap { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.nature-contact-left { text-align: left; }
.nature-label { display: inline-block; background: rgba(255,255,255,0.1); padding: 0.5rem 1.5rem; border-radius: 50px; font-size: 0.875rem; margin-bottom: 1.5rem; }
.nature-contact-left h2 { font-family: 'Lora', serif; font-size: 2.5rem; margin-bottom: 1rem; }
.nature-desc { opacity: 0.9; max-width: 500px; }
.nature-contact-right { display: flex; flex-direction: column; gap: 1.5rem; }
.nature-info-card { background: rgba(255,255,255,0.1); border-radius: 16px; padding: 2rem; border: 1px solid rgba(255,255,255,0.2); display: flex; align-items: center; gap: 1.5rem; }
.nature-info-icon { width: 56px; height: 56px; background: rgba(255,255,255,0.2); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.75rem; flex-shrink: 0; }
.nature-info-text { text-align: left; }
.nature-info-text h4 { margin-bottom: 0.5rem; }
.nature-info-text p { opacity: 0.8; }

.legal-section { background: #f8faf5; }
.legal-section h3 { color: #2d5a27; }

.nature-footer { background: #1a3d16; color: #fff; padding: 3rem 4rem; text-align: center; }