* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif; text-decoration: none; }
.bottom-nav { position: fixed; bottom: 0; left: 0; right: 0; height: 60px; background-color: var(--primary); display: none; justify-content: space-around; align-items: center; z-index: 1000; }
@media (max-width: 768px) { .bottom-nav { display: flex; } }
.nav-item { text-align: center; color: white; font-size: 12px; display: flex; flex-direction: column; align-items: center; text-decoration: none; }
.nav-icon { font-size: 24px; margin-bottom: 4px; color: white; }
.nav-item:hover .nav-icon, .nav-item:hover div { opacity: 0.8; }
:root { --primary: #8B0000; --primary-dark: #600000; --primary-light: #A52A2A; --secondary: #D4AF37; --dark: #333; --light: #f8f8f8; --gray: #777; --transition: all 0.3s ease; }
html { scroll-behavior: smooth; }
body { line-height: 1.6; color: var(--dark); background-color: var(--light); overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.btn { display: inline-block; background: var(--primary); color: white; padding: 12px 30px; border: none; border-radius: 4px; font-size: 16px; font-weight: 600; cursor: pointer; transition: var(--transition); text-decoration: none; text-align: center; }
.btn-secondary { background: var(--secondary); color: var(--dark); }
.btn-secondary:hover { background: #e6b800; }
header { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: white; padding: 15px 0; position: fixed; width: 100%; top: 0; z-index: 1000; box-shadow: 0 2px 15px rgba(0,0,0,0.1); }
.header-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 28px; font-weight: 700; display: flex; align-items: center; margin-bottom: 15px; }
.logo i { margin-right: 10px; color: var(--secondary); }
.contact-info { text-align: right; }
.phone { font-size: 22px; font-weight: bold; margin-bottom: 5px; }
.tagline { font-size: 14px; opacity: 0.9; }
nav { background: rgba(0,0,0,0.1); backdrop-filter: blur(10px); }
.nav-menu { display: flex; list-style: none; justify-content: center; }
.nav-menu li { margin: 0 15px; }
.nav-menu a { display: block; color: white; text-align: center; padding: 15px 0; text-decoration: none; font-weight: 500; transition: var(--transition); position: relative; }
.nav-menu a:after { content: ''; position: absolute; width: 0; height: 2px; background: var(--secondary); bottom: 10px; left: 0; transition: var(--transition); }
.nav-menu a:hover:after, .nav-menu a.active:after { width: 100%; }
.nav-menu a:hover, .nav-menu a.active { color: var(--secondary); }
.hero { background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), no-repeat center center; background-size: cover; color: white; text-align: center; padding: 140px 0 100px; margin-top: 80px; }
.hero h1 { font-size: 48px; margin-bottom: 20px; line-height: 1.2; }
.hero p { font-size: 20px; max-width: 800px; margin: 0 auto 30px; opacity: 0.9; }
.hero-btns { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.services { padding: 60px 0; background: white; }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: 36px; color: var(--primary); margin-bottom: 15px; position: relative; display: inline-block; }
.section-title h2:after { content: ''; position: absolute; width: 80px; height: 3px; background: var(--secondary); bottom: -10px; left: 50%; transform: translateX(-50%); }
.section-title p { color: var(--gray); max-width: 700px; margin: 0 auto; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.service-card { border-radius: 15px; overflow: hidden; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); transition: all 0.3s ease; border: 1px solid #f0f0f0; }
.service-card:hover { transform: translateY(-10px); box-shadow: 0 15px 30px rgba(0,0,0,0.1); }
.service-img { display: flex; justify-content: center; background: #9b6d6d; border-radius: 15px; overflow: hidden; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); transition: all 0.3s ease; border: 1px solid #f0f0f0; }
.service-img img { height: 100%; object-fit: cover; transition: var(--transition); }
.service-card:hover .service-img img { transform: scale(1.1); }
.service-content { padding: 25px; }
.service-content h3 { font-size: 22px; margin-bottom: 15px; color: var(--primary); width: -webkit-fill-available; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; }
.service-content p { color: var(--gray); margin-bottom: 20px; }
.service-price { color: var(--primary); font-weight: bold; font-size: 18px; margin-bottom: 15px; }
.about { padding: 60px 0; background: #f9f9f9; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-text h2 { font-size: 36px; color: var(--primary); margin-bottom: 20px; }
.about-text p { margin-bottom: 20px; color: var(--gray); }
.about-features { list-style: none; margin-top: 30px; }
.about-features li { margin-bottom: 15px; display: flex; align-items: flex-start; }
.about-features i { color: var(--secondary); margin-right: 10px; margin-top: 5px; }
.about-img { border-radius: 8px; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.about-img img { width: 100%; height: auto; display: block; }
.hot-products { padding: 60px 0; background: white; }
.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.product-card { background: var(--light); border-radius: 8px; overflow: hidden; box-shadow: 0 5px 15px rgba(0,0,0,0.05); transition: var(--transition); text-align: center; }
.product-card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
.product-img { height: 180px; display: flex; align-items: center; justify-content: center; padding: 20px; background: white; }
.product-img img { max-width: 100%; }
.product-content { padding: 20px; }
.product-content h3 { font-size: 18px; margin-bottom: 10px; color: var(--primary); }
.product-content p { color: var(--gray); font-size: 14px; }
.process { padding: 60px 0; background: #f9f9f9; }
.process-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-top: 50px; }
.step { text-align: center; padding: 30px 20px; background: white; border-radius: 8px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); transition: var(--transition); }
.step:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
.step-icon { width: 80px; height: 80px; background: var(--primary); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 30px; }
.step h3 { font-size: 20px; margin-bottom: 15px; color: var(--primary); }
.step p { color: var(--gray); }
.contact { padding: 60px 0; background: white; }
.contact-content { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info { flex: 1; }
.contact-info h3 { font-size: 24px; color: var(--primary); margin-bottom: 20px; }
.contact-info p { margin-bottom: 15px; display: flex; align-items: center; }
.contact-info i { color: var(--secondary); margin-right: 10px; width: 20px; }
.contact-form { background: var(--light); padding: 30px; border-radius: 8px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; }
.form-control { width: 100%; padding: 12px 15px; border: 1px solid #ddd; border-radius: 4px; font-size: 16px; transition: var(--transition); }
.form-control:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 2px rgba(139, 0, 0, 0.1); }
footer { background: var(--dark); color: white; padding: 60px 0 20px; }
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-section h3 { color: var(--secondary); margin-bottom: 20px; font-size: 20px; position: relative; padding-bottom: 10px; }
.footer-section h3:after { content: ''; position: absolute; left: 0; bottom: 0; width: 40px; height: 2px; background: var(--primary); }
.footer-section p { margin-bottom: 15px; opacity: 0.8; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.8); text-decoration: none; transition: var(--transition); }
.footer-links a:hover { color: var(--secondary); padding-left: 5px; }
.social-links { display: flex; gap: 15px; margin-top: 20px; }
.social-links a { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: rgba(255,255,255,0.1); border-radius: 50%; color: white; transition: var(--transition); }
.social-links a:hover { background: var(--primary); transform: translateY(-3px); }
.copyright { text-align: center; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 14px; opacity: 0.7; }
@media (max-width: 768px) { .header-content { flex-direction: column; text-align: center; } .contact-info { margin-top: 10px; text-align: center; } .nav-menu { flex-wrap: wrap; } .nav-menu li { margin: 0 10px; } .hero h1 { font-size: 30px; } .hero p { font-size: 18px; } .hero { padding: 180px 0 45px; } .about-content, .contact-content { grid-template-columns: 1fr; } .contact-info { display: none; } .hero-btns { display: none; } .copyright { padding: 10px 0 50px 0; } }
@media (max-width: 576px) { .hero-btns { flex-direction: column; align-items: center; } .footer-content { grid-template-columns: 1fr; } }