* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background: #f5f7fa; color: #1a1a2e; line-height: 1.6; transition: background 0.3s, color 0.3s; }
body.dark-mode { background: #0f0f1a; color: #e0e0e0; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
nav { background: rgba(255,255,255,0.8); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(0,0,0,0.05); position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; transition: background 0.3s; }
body.dark-mode nav { background: rgba(15,15,26,0.9); border-color: rgba(255,255,255,0.1); }
.nav-inner { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; }
.logo { font-size: 24px; font-weight: 800; background: linear-gradient(135deg, #ff6b35, #f7c948); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; gap: 25px; align-items: center; }
.nav-links a { font-size: 15px; font-weight: 500; padding: 8px 0; border-bottom: 2px solid transparent; transition: 0.3s; }
.nav-links a:hover, .nav-links a.active { border-bottom-color: #ff6b35; color: #ff6b35; }
.nav-right { display: flex; gap: 15px; align-items: center; }
.dark-toggle { background: none; border: none; font-size: 20px; cursor: pointer; padding: 5px; border-radius: 50%; transition: 0.3s; color: #1a1a2e; }
body.dark-mode .dark-toggle { color: #e0e0e0; }
.search-btn { background: none; border: none; font-size: 18px; cursor: pointer; color: #1a1a2e; }
body.dark-mode .search-btn { color: #e0e0e0; }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: #1a1a2e; }
body.dark-mode .mobile-menu-btn { color: #e0e0e0; }
.mobile-menu { display: none; position: fixed; top: 70px; left: 0; width: 100%; background: white; padding: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); z-index: 999; transition: 0.3s; }
body.dark-mode .mobile-menu { background: #1a1a2e; }
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; padding: 12px 0; border-bottom: 1px solid #eee; font-size: 16px; }
body.dark-mode .mobile-menu a { border-color: #333; }
.search-modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); backdrop-filter: blur(5px); z-index: 2000; justify-content: center; align-items: center; }
.search-modal.open { display: flex; }
.search-modal-content { background: white; padding: 40px; border-radius: 20px; width: 90%; max-width: 500px; text-align: center; }
body.dark-mode .search-modal-content { background: #1a1a2e; }
.search-modal input { width: 100%; padding: 15px 20px; border: 2px solid #ddd; border-radius: 30px; font-size: 16px; outline: none; margin-bottom: 15px; }
body.dark-mode .search-modal input { background: #2a2a3e; border-color: #444; color: white; }
.search-modal button { padding: 12px 30px; background: linear-gradient(135deg, #ff6b35, #f7c948); border: none; border-radius: 30px; color: white; font-size: 16px; cursor: pointer; font-weight: 600; }
.hero { margin-top: 70px; background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); padding: 100px 0 80px; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle, rgba(255,107,53,0.1) 0%, transparent 70%); animation: heroGlow 8s infinite alternate; }
@keyframes heroGlow { 0% { transform: translate(0,0); } 100% { transform: translate(30%,30%); } }
.hero-content { position: relative; z-index: 1; }
.hero h1 { font-size: 48px; color: white; margin-bottom: 20px; font-weight: 800; letter-spacing: 2px; }
.hero p { font-size: 18px; color: rgba(255,255,255,0.8); max-width: 700px; margin: 0 auto 30px; }
.hero-buttons { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.btn-primary { padding: 15px 40px; background: linear-gradient(135deg, #ff6b35, #f7c948); border: none; border-radius: 50px; color: white; font-size: 16px; font-weight: 600; cursor: pointer; transition: transform 0.3s, box-shadow 0.3s; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(255,107,53,0.4); }
.btn-secondary { padding: 15px 40px; background: transparent; border: 2px solid rgba(255,255,255,0.3); border-radius: 50px; color: white; font-size: 16px; font-weight: 600; cursor: pointer; transition: 0.3s; }
.btn-secondary:hover { border-color: #ff6b35; background: rgba(255,107,53,0.1); }
.banner-carousel { position: relative; height: 500px; overflow: hidden; margin-top: 0; }
.carousel-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.8s; }
.carousel-slide.active { opacity: 1; }
.carousel-slide svg { width: 100%; height: 100%; }
.carousel-dots { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; }
.carousel-dot { width: 14px; height: 14px; border-radius: 50%; background: rgba(255,255,255,0.4); cursor: pointer; transition: 0.3s; }
.carousel-dot.active { background: #ff6b35; transform: scale(1.2); }
section { padding: 80px 0; }
.section-title { text-align: center; font-size: 36px; font-weight: 700; margin-bottom: 15px; }
.section-subtitle { text-align: center; font-size: 16px; color: #666; margin-bottom: 50px; }
body.dark-mode .section-subtitle { color: #aaa; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
.card { background: white; border-radius: 20px; padding: 30px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); transition: transform 0.3s, box-shadow 0.3s; backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.2); }
body.dark-mode .card { background: rgba(30,30,50,0.8); border-color: rgba(255,255,255,0.05); }
.card:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(0,0,0,0.1); }
.card-icon { width: 60px; height: 60px; margin-bottom: 20px; }
.card h3 { font-size: 20px; margin-bottom: 10px; }
.card p { color: #666; font-size: 14px; }
body.dark-mode .card p { color: #bbb; }
.brand-intro { background: linear-gradient(135deg, #f5f7fa, #e8ecf1); }
body.dark-mode .brand-intro { background: linear-gradient(135deg, #1a1a2e, #16213e); }
.company-intro { background: white; }
body.dark-mode .company-intro { background: #0f0f1a; }
.timeline { display: flex; flex-direction: column; gap: 30px; }
.timeline-item { display: flex; gap: 20px; align-items: flex-start; }
.timeline-year { font-size: 24px; font-weight: 700; color: #ff6b35; min-width: 80px; }
.timeline-content { background: white; padding: 20px; border-radius: 15px; box-shadow: 0 3px 10px rgba(0,0,0,0.05); flex: 1; }
body.dark-mode .timeline-content { background: rgba(30,30,50,0.8); }
.team-member { text-align: center; }
.team-member svg { width: 120px; height: 120px; border-radius: 50%; margin: 0 auto 15px; }
.team-member h4 { font-size: 18px; }
.team-member p { color: #888; }
.product-center { background: #f5f7fa; }
body.dark-mode .product-center { background: #0f0f1a; }
.advantages { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.advantage-item { text-align: center; padding: 30px 20px; }
.advantage-item svg { width: 50px; height: 50px; margin: 0 auto 15px; }
.solution-item { padding: 30px; border-radius: 20px; background: white; box-shadow: 0 5px 20px rgba(0,0,0,0.05); text-align: center; }
body.dark-mode .solution-item { background: rgba(30,30,50,0.8); }
.industry-item { padding: 30px; border-radius: 20px; background: linear-gradient(135deg, #ff6b35, #f7c948); color: white; text-align: center; }
.case-item { border-radius: 20px; overflow: hidden; background: white; box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
body.dark-mode .case-item { background: rgba(30,30,50,0.8); }
.case-item svg { width: 100%; height: 200px; }
.case-info { padding: 20px; }
.partner-grid { display: flex; flex-wrap: wrap; gap: 30px; justify-content: center; }
.partner-item { width: 120px; height: 60px; background: white; border-radius: 10px; display: flex; align-items: center; justify-content: center; padding: 10px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
body.dark-mode .partner-item { background: rgba(30,30,50,0.8); }
.testimonial-item { background: white; padding: 30px; border-radius: 20px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
body.dark-mode .testimonial-item { background: rgba(30,30,50,0.8); }
.testimonial-item .quote { font-style: italic; margin-bottom: 15px; }
.testimonial-item .author { font-weight: 600; color: #ff6b35; }
.news-item { padding: 20px 0; border-bottom: 1px solid #eee; }
body.dark-mode .news-item { border-color: #333; }
.news-item h4 { font-size: 18px; margin-bottom: 5px; }
.news-item .date { color: #888; font-size: 13px; }
.related-articles { background: #f5f7fa; }
body.dark-mode .related-articles { background: #0f0f1a; }
.faq-item { margin-bottom: 15px; border-radius: 15px; overflow: hidden; background: white; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
body.dark-mode .faq-item { background: rgba(30,30,50,0.8); }
.faq-question { padding: 20px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; }
.faq-question .arrow { transition: transform 0.3s; }
.faq-item.open .faq-question .arrow { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s; padding: 0 20px; }
.faq-item.open .faq-answer { max-height: 200px; padding: 0 20px 20px; }
.howto-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.howto-step { text-align: center; padding: 30px; background: white; border-radius: 20px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
body.dark-mode .howto-step { background: rgba(30,30,50,0.8); }
.howto-step .step-number { width: 50px; height: 50px; background: linear-gradient(135deg, #ff6b35, #f7c948); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-size: 24px; font-weight: 700; margin: 0 auto 15px; }
.contact-info { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.contact-item { text-align: center; padding: 30px; background: white; border-radius: 20px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
body.dark-mode .contact-item { background: rgba(30,30,50,0.8); }
.friend-links { display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; }
.friend-links a { color: #666; font-size: 14px; }
body.dark-mode .friend-links a { color: #aaa; }
.sitemap { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 20px; }
.sitemap h4 { margin-bottom: 15px; }
.sitemap a { display: block; color: #666; font-size: 14px; padding: 3px 0; }
body.dark-mode .sitemap a { color: #aaa; }
footer { background: #1a1a2e; color: white; padding: 40px 0 20px; }
footer .footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
footer h4 { margin-bottom: 15px; color: #ff6b35; }
footer p, footer a { color: rgba(255,255,255,0.7); font-size: 14px; }
footer .copyright { text-align: center; padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.1); margin-top: 30px; font-size: 13px; }
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background: linear-gradient(135deg, #ff6b35, #f7c948); border: none; border-radius: 50%; color: white; font-size: 24px; cursor: pointer; display: none; align-items: center; justify-content: center; box-shadow: 0 5px 20px rgba(255,107,53,0.4); z-index: 999; transition: 0.3s; }
.back-to-top.show { display: flex; }
.back-to-top:hover { transform: scale(1.1); }
@media (max-width: 768px) {
.nav-links { display: none; }
.mobile-menu-btn { display: block; }
.grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
.hero h1 { font-size: 32px; }
.section-title { font-size: 28px; }
.banner-carousel { height: 300px; }
footer .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
.hero h1 { font-size: 26px; }
.hero p { font-size: 15px; }
.container { padding: 0 15px; }
}
.animate-on-scroll { opacity: 0; transform: translateY(30px); transition: opacity 0.6s, transform 0.6s; }
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }
.counter { font-size: 36px; font-weight: 700; color: #ff6b35; }
.breadcrumb { padding: 15px 0; font-size: 14px; color: #888; max-width: 1200px; margin: 0 auto; padding-left: 20px; }
.breadcrumb a { color: #ff6b35; }
body.dark-mode .breadcrumb { color: #aaa; }
.search-bar { display: flex; max-width: 400px; margin: 20px auto; }
.search-bar input { flex: 1; padding: 12px 20px; border: 2px solid #ddd; border-radius: 30px 0 0 30px; outline: none; font-size: 14px; }
body.dark-mode .search-bar input { background: #2a2a3e; border-color: #444; color: white; }
.search-bar button { padding: 12px 25px; background: linear-gradient(135deg, #ff6b35, #f7c948); border: none; border-radius: 0 30px 30px 0; color: white; cursor: pointer; font-weight: 600; }
body.dark-mode .brand-intro, body.dark-mode .product-center, body.dark-mode .related-articles { background: #0f0f1a; }
body.dark-mode .company-intro { background: #0f0f1a; }
body.dark-mode .card, body.dark-mode .solution-item, body.dark-mode .case-item, body.dark-mode .testimonial-item, body.dark-mode .faq-item, body.dark-mode .howto-step, body.dark-mode .contact-item, body.dark-mode .partner-item { background: rgba(30,30,50,0.8); }