* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; color: #333; line-height: 1.6; }
:root { --primary: #DC143C; --primary-light: #FF6347; --secondary: #228B22; --secondary-dark: #006400; --light: #FFF0F0; --text: #333; }

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

/* Hero */
.hero { background: linear-gradient(135deg, #DC143C 0%, #FF6347 50%, #228B22 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; color: #fff; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.15) 0%, transparent 60%); }
.hero-content { position: relative; z-index: 1; padding: 40px 20px; }
.logo-icon { font-size: 80px; margin-bottom: 20px; filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3)); }
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); margin-bottom: 16px; }
.subtitle { font-size: clamp(1rem, 2vw, 1.3rem); opacity: 0.95; margin-bottom: 30px; text-shadow: 1px 1px 2px rgba(0,0,0,0.3); }
.cta-btn { display: inline-block; padding: 14px 40px; background: #fff; color: #DC143C; font-weight: 700; font-size: 1.1rem; border-radius: 50px; text-decoration: none; transition: all 0.3s; box-shadow: 0 4px 15px rgba(0,0,0,0.2); }
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.3); }

/* Navbar */
.navbar { background: linear-gradient(90deg, #DC143C, #B22222); padding: 0; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 10px rgba(0,0,0,0.15); }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; justify-content: space-between; align-items: center; height: 60px; }
.nav-logo { color: #fff; font-weight: 700; font-size: 1.2rem; }
.nav-links { list-style: none; display: flex; gap: 30px; }
.nav-links a { color: rgba(255,255,255,0.9); text-decoration: none; font-weight: 500; transition: color 0.3s; }
.nav-links a:hover { color: #90EE90; }

/* Sections */
section { padding: 80px 0; }
.section-title { text-align: center; font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: 50px; color: var(--primary); }
.section-title::after { content: ''; display: block; width: 60px; height: 4px; background: linear-gradient(90deg, #DC143C, #228B22); margin: 15px auto 0; border-radius: 2px; }

/* Features */
.features { background: var(--light); }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 30px; }
.feature-card { background: #fff; padding: 35px 25px; border-radius: 16px; text-align: center; box-shadow: 0 4px 20px rgba(0,0,0,0.08); transition: transform 0.3s; }
.feature-card:hover { transform: translateY(-5px); }
.feature-icon { font-size: 48px; margin-bottom: 15px; }
.feature-card h3 { color: var(--primary); margin-bottom: 10px; font-size: 1.2rem; }
.feature-card p { color: #666; font-size: 0.95rem; }

/* Products */
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 30px; }
.product-card { background: #fff; border-radius: 16px; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.08); transition: transform 0.3s; border: 2px solid transparent; }
.product-card:hover { transform: translateY(-5px); border-color: var(--primary); }
.product-img { height: 180px; display: flex; align-items: center; justify-content: center; font-size: 80px; }
.product-card h3 { padding: 15px 20px 5px; font-size: 1.15rem; color: var(--primary); }
.product-desc { padding: 0 20px 10px; color: #888; font-size: 0.9rem; }
.product-price { padding: 10px 20px 20px; color: #228B22; font-weight: 700; font-size: 1.2rem; }

/* About */
.about { background: #fff; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-text p { margin-bottom: 20px; font-size: 1.05rem; color: #555; line-height: 1.8; }
.highlight { color: var(--primary); font-weight: 700; }
.about-stats { display: grid; gap: 20px; }
.stat-item { background: linear-gradient(135deg, #DC143C, #FF6347); padding: 25px; border-radius: 16px; text-align: center; color: #fff; }
.stat-num { display: block; font-size: 2.5rem; font-weight: 700; }
.stat-label { font-size: 0.95rem; opacity: 0.9; }

/* Contact */
.contact { background: linear-gradient(135deg, #DC143C 0%, #B22222 100%); color: #fff; }
.contact .section-title { color: #fff; }
.contact .section-title::after { background: linear-gradient(90deg, #90EE90, #fff); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info { display: flex; flex-direction: column; gap: 20px; padding-top: 10px; }
.contact-item { font-size: 1.1rem; padding: 15px 20px; background: rgba(255,255,255,0.15); border-radius: 10px; }
.contact-form { display: flex; flex-direction: column; gap: 15px; }
.contact-form input, .contact-form textarea { padding: 14px 18px; border: none; border-radius: 10px; font-size: 1rem; font-family: inherit; }
.contact-form textarea { min-height: 100px; resize: vertical; }
.submit-btn { padding: 14px; background: #228B22; color: #fff; font-weight: 700; font-size: 1.1rem; border: none; border-radius: 10px; cursor: pointer; transition: all 0.3s; }
.submit-btn:hover { background: #006400; transform: translateY(-2px); }

/* Footer */
.footer { background: #5c0000; color: rgba(255,255,255,0.7); text-align: center; padding: 25px 0; font-size: 0.9rem; }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .about-content { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    section { padding: 60px 0; }
}