* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Microsoft YaHei', sans-serif; line-height: 1.6; color: #1a1a2e; background: #f9fbfd; }
a { color: #0a7e3d; text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.navbar { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid rgba(224,230,237,0.6); box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 1.5rem; font-weight: 700; color: #0a7e3d; letter-spacing: 0.5px; }
.logo span { color: #1a1a2e; }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { color: #333; font-weight: 500; font-size: 0.95rem; padding: 6px 0; border-bottom: 2px solid transparent; transition: border-color 0.2s, color 0.2s; }
.nav-links a:hover { border-bottom-color: #0a7e3d; color: #0a7e3d; text-decoration: none; }
.menu-toggle { display: none; background: none; border: none; font-size: 1.8rem; cursor: pointer; color: #1a1a2e; }
.search-box { display: flex; align-items: center; background: rgba(240,243,247,0.8); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); border-radius: 24px; padding: 4px 12px; transition: background 0.3s; }
.search-box:focus-within { background: rgba(224,230,237,0.9); }
.search-box input { border: none; background: transparent; padding: 8px; outline: none; width: 160px; font-size: 0.9rem; color: #1a1a2e; }
.search-box input::placeholder { color: #8a9aa8; }
.search-box button { background: none; border: none; cursor: pointer; font-size: 1.1rem; color: #0a7e3d; transition: transform 0.2s; }
.search-box button:hover { transform: scale(1.1); }
.mobile-menu { display: none; flex-direction: column; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); position: absolute; top: 64px; left: 0; right: 0; border-bottom: 2px solid #0a7e3d; padding: 16px 20px; box-shadow: 0 8px 16px rgba(0,0,0,0.08); }
.mobile-menu a { padding: 10px 0; border-bottom: 1px solid #eee; color: #1a1a2e; transition: padding-left 0.2s; }
.mobile-menu a:hover { padding-left: 8px; color: #0a7e3d; }
.mobile-menu a:last-child { border-bottom: none; }
.hero { background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 50%, #a5d6a7 100%); padding: 60px 0 80px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; left: -30%; width: 80%; height: 200%; background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%); pointer-events: none; }
.hero .container { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; position: relative; z-index: 1; }
.hero-text { flex: 1 1 50%; }
.hero-text h1 { font-size: 2.6rem; line-height: 1.2; color: #0a3d2e; margin-bottom: 20px; }
.hero-text h1 span { color: #0a7e3d; }
.hero-text p { font-size: 1.1rem; color: #2d4a3e; margin-bottom: 28px; max-width: 540px; }
.hero-btn { display: inline-block; background: linear-gradient(135deg, #0a7e3d, #1b9a5a); color: #fff; padding: 14px 36px; border-radius: 40px; font-weight: 600; font-size: 1rem; transition: background 0.3s, transform 0.2s, box-shadow 0.3s; box-shadow: 0 4px 12px rgba(10,126,61,0.3); }
.hero-btn:hover { background: linear-gradient(135deg, #086b32, #158a4e); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(10,126,61,0.4); text-decoration: none; }
.hero-visual { flex: 1 1 40%; text-align: center; }
.hero-visual svg { max-width: 100%; height: auto; filter: drop-shadow(0 4px 12px rgba(0,0,0,0.08)); }
.carousel { background: #fff; padding: 20px 0; border-bottom: 1px solid #e0e6ed; }
.carousel-track { display: flex; gap: 24px; overflow: hidden; justify-content: center; }
.carousel-item { min-width: 200px; text-align: center; padding: 18px 10px; background: rgba(245,249,252,0.7); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); border-radius: 12px; transition: background 0.3s, transform 0.3s; }
.carousel-item:hover { background: rgba(224,240,232,0.9); transform: translateY(-4px); }
.carousel-item svg { width: 48px; height: 48px; margin-bottom: 8px; }
.carousel-item p { font-weight: 600; color: #0a3d2e; }
.section-title { text-align: center; margin-bottom: 40px; }
.section-title h2 { font-size: 2.2rem; color: #0a3d2e; position: relative; display: inline-block; }
.section-title h2::after { content: ''; display: block; width: 60px; height: 4px; background: linear-gradient(90deg, #0a7e3d, #4caf50); margin: 12px auto 0; border-radius: 4px; }
.section-title p { color: #5a6b7a; margin-top: 12px; font-size: 1rem; }
.breadcrumb { background: rgba(240,244,248,0.8); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); padding: 12px 0; font-size: 0.9rem; color: #5a6b7a; }
.breadcrumb a { color: #0a7e3d; }
.breadcrumb span { margin: 0 6px; }
.brand-intro { padding: 60px 0; background: #fff; }
.brand-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 30px; }
.brand-card { background: rgba(249,251,253,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); padding: 28px; border-radius: 16px; border-left: 4px solid #0a7e3d; transition: box-shadow 0.3s, transform 0.3s; }
.brand-card:hover { box-shadow: 0 8px 24px rgba(10,126,61,0.08); transform: translateY(-4px); }
.brand-card h3 { color: #0a3d2e; margin-bottom: 12px; font-size: 1.2rem; }
.brand-card p { color: #3d4f5e; font-size: 0.95rem; }
.products { padding: 60px 0; background: #f5f9fc; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.product-item { background: rgba(255,255,255,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-radius: 16px; padding: 24px; text-align: center; box-shadow: 0 2px 12px rgba(0,0,0,0.04); transition: transform 0.2s, box-shadow 0.3s; }
.product-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.product-item svg { width: 56px; height: 56px; margin-bottom: 12px; }
.product-item h3 { font-size: 1.1rem; color: #0a3d2e; margin-bottom: 8px; }
.product-item p { color: #5a6b7a; font-size: 0.9rem; }
.solutions { padding: 60px 0; background: #fff; }
.solution-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
.solution-card { background: rgba(245,249,252,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-radius: 16px; padding: 28px; border: 1px solid rgba(224,232,240,0.6); transition: border-color 0.3s, transform 0.3s; }
.solution-card:hover { border-color: #0a7e3d; transform: translateY(-4px); }
.solution-card h3 { color: #0a3d2e; margin-bottom: 10px; }
.solution-card p { color: #3d4f5e; font-size: 0.95rem; }
.cases { padding: 60px 0; background: #f5f9fc; }
.case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.case-item { background: rgba(255,255,255,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-radius: 16px; padding: 24px; box-shadow: 0 2px 8px rgba(0,0,0,0.03); transition: transform 0.3s, box-shadow 0.3s; }
.case-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.06); }
.case-item h3 { color: #0a3d2e; margin-bottom: 6px; }
.case-item .meta { color: #7a8a9a; font-size: 0.85rem; margin-bottom: 8px; }
.case-item p { color: #3d4f5e; font-size: 0.95rem; }
.articles { padding: 60px 0; background: #fff; }
.article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.article-card { background: rgba(249,251,253,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-radius: 12px; padding: 24px; border: 1px solid rgba(232,236,240,0.6); transition: box-shadow 0.2s, transform 0.3s; }
.article-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.05); transform: translateY(-4px); }
.article-card h3 { font-size: 1.05rem; color: #0a3d2e; margin-bottom: 6px; }
.article-card .date { color: #7a8a9a; font-size: 0.8rem; margin-bottom: 8px; }
.article-card p { color: #3d4f5e; font-size: 0.9rem; margin-bottom: 12px; }
.article-card a { font-weight: 500; transition: color 0.2s; }
.article-card a:hover { color: #086b32; }
.faq { padding: 60px 0; background: #f5f9fc; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: rgba(255,255,255,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-radius: 12px; margin-bottom: 12px; border: 1px solid rgba(224,232,240,0.6); overflow: hidden; transition: box-shadow 0.3s; }
.faq-item:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.04); }
.faq-question { padding: 18px 24px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; color: #0a3d2e; transition: background 0.2s; }
.faq-question:hover { background: rgba(240,247,244,0.5); }
.faq-question .icon { font-size: 1.5rem; transition: transform 0.3s; color: #0a7e3d; }
.faq-answer { padding: 0 24px 18px; color: #3d4f5e; font-size: 0.95rem; display: none; }
.faq-item.active .faq-answer { display: block; }
.faq-item.active .faq-question .icon { transform: rotate(45deg); }
.howto { padding: 60px 0; background: #fff; }
.howto-steps { max-width: 800px; margin: 0 auto; counter-reset: step; }
.howto-step { display: flex; gap: 20px; margin-bottom: 28px; align-items: flex-start; transition: transform 0.3s; }
.howto-step:hover { transform: translateX(4px); }
.howto-step .num { counter-increment: step; content: counter(step); background: linear-gradient(135deg, #0a7e3d, #1b9a5a); color: #fff; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; flex-shrink: 0; box-shadow: 0 2px 8px rgba(10,126,61,0.3); }
.howto-step h3 { color: #0a3d2e; margin-bottom: 6px; }
.howto-step p { color: #3d4f5e; font-size: 0.95rem; }
.contact { padding: 60px 0; background: linear-gradient(135deg, #0a3d2e 0%, #0a5e3d 100%); color: #fff; }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.contact-item h3 { color: #b2dfdb; margin-bottom: 12px; font-size: 1.1rem; }
.contact-item p { color: #d0e8e0; font-size: 0.95rem; line-height: 1.8; }
.contact-item a { color: #80cbc4; transition: color 0.2s; }
.contact-item a:hover { color: #b2dfdb; }
.footer { background: #0a2e22; color: #b0c4b8; padding: 40px 0 20px; }
.footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: #b0c4b8; font-size: 0.9rem; transition: color 0.2s; }
.footer-links a:hover { color: #fff; }
.footer-copy { width: 100%; text-align: center; margin-top: 24px; border-top: 1px solid #1a4a3a; padding-top: 20px; font-size: 0.85rem; }
.back-to-top { position: fixed; bottom: 30px; right: 30px; background: linear-gradient(135deg, #0a7e3d, #1b9a5a); color: #fff; width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1.6rem; box-shadow: 0 4px 12px rgba(0,0,0,0.15); transition: opacity 0.3s, transform 0.3s; opacity: 0; pointer-events: none; border: none; }
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: scale(1.05); }
.dark-mode-toggle { background: none; border: 2px solid #0a7e3d; color: #0a7e3d; border-radius: 30px; padding: 6px 16px; cursor: pointer; font-size: 0.85rem; font-weight: 600; transition: all 0.3s; }
.dark-mode-toggle:hover { background: #0a7e3d; color: #fff; }
body.dark { background: #121212; color: #e0e0e0; }
body.dark .navbar { background: rgba(30,30,30,0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom-color: rgba(51,51,51,0.6); }
body.dark .hero { background: linear-gradient(135deg, #1a3a2e, #0a2e22); }
body.dark .hero::before { background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%); }
body.dark .hero-text h1 { color: #c8e6c9; }
body.dark .hero-text p { color: #b0c4b8; }
body.dark .brand-intro { background: #1a1a1a; }
body.dark .brand-card { background: rgba(36,36,36,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-left-color: #2e7d5e; }
body.dark .brand-card h3 { color: #c8e6c9; }
body.dark .brand-card p { color: #b0c4b8; }
body.dark .products { background: #1a1a1a; }
body.dark .product-item { background: rgba(36,36,36,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
body.dark .product-item h3 { color: #c8e6c9; }
body.dark .product-item p { color: #9aaeb8; }
body.dark .solutions { background: #1a1a1a; }
body.dark .solution-card { background: rgba(36,36,36,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-color: rgba(51,51,51,0.6); }
body.dark .solution-card h3 { color: #c8e6c9; }
body.dark .solution-card p { color: #b0c4b8; }
body.dark .cases { background: #1a1a1a; }
body.dark .case-item { background: rgba(36,36,36,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
body.dark .case-item h3 { color: #c8e6c9; }
body.dark .case-item p { color: #b0c4b8; }
body.dark .articles { background: #1a1a1a; }
body.dark .article-card { background: rgba(36,36,36,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-color: rgba(51,51,51,0.6); }
body.dark .article-card h3 { color: #c8e6c9; }
body.dark .article-card p { color: #b0c4b8; }
body.dark .faq { background: #1a1a1a; }
body.dark .faq-item { background: rgba(36,36,36,0.7); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-color: rgba(51,51,51,0.6); }
body.dark .faq-question { color: #c8e6c9; }
body.dark .faq-answer { color: #b0c4b8; }
body.dark .howto { background: #1a1a1a; }
body.dark .howto-step h3 { color: #c8e6c9; }
body.dark .howto-step p { color: #b0c4b8; }
body.dark .contact { background: linear-gradient(135deg, #0a2e22, #0a1e16); }
body.dark .footer { background: #0a1e16; }
body.dark .carousel { background: #1e1e1e; }
body.dark .carousel-item { background: rgba(36,36,36,0.7); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }
body.dark .carousel-item p { color: #c8e6c9; }
body.dark .search-box { background: rgba(42,42,42,0.8); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }
body.dark .search-box input { color: #e0e0e0; }
body.dark .search-box input::placeholder { color: #7a8a9a; }
body.dark .nav-links a { color: #ccc; }
body.dark .nav-links a:hover { color: #4caf50; }
body.dark .breadcrumb { background: rgba(30,30,30,0.8); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); color: #aaa; }
body.dark .section-title h2 { color: #c8e6c9; }
body.dark .section-title p { color: #9aaeb8; }
body.dark .logo { color: #4caf50; }
body.dark .logo span { color: #e0e0e0; }
body.dark .menu-toggle { color: #e0e0e0; }
body.dark .mobile-menu { background: rgba(30,30,30,0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
body.dark .mobile-menu a { color: #ccc; border-bottom-color: #333; }
body.dark .mobile-menu a:hover { color: #4caf50; }
body.dark .back-to-top { background: linear-gradient(135deg, #2e7d5e, #4caf50); }
body.dark .dark-mode-toggle { border-color: #4caf50; color: #4caf50; }
body.dark .dark-mode-toggle:hover { background: #4caf50; color: #1a1a1a; }
body.dark .hero-btn { background: linear-gradient(135deg, #2e7d5e, #4caf50); box-shadow: 0 4px 12px rgba(76,175,80,0.3); }
body.dark .hero-btn:hover { background: linear-gradient(135deg, #1b6a4a, #3d9c40); box-shadow: 0 6px 20px rgba(76,175,80,0.4); }
@media (max-width: 768px) {
    .nav-links { display: none; }
    .menu-toggle { display: block; }
    .mobile-menu.show { display: flex; }
    .hero-text h1 { font-size: 1.8rem; }
    .hero .container { flex-direction: column; }
    .search-box input { width: 100px; }
    .carousel-track { flex-wrap: wrap; gap: 12px; }
    .carousel-item { min-width: 120px; }
    .brand-grid { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; }
    .solution-list { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: 1fr; }
    .article-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer .container { flex-direction: column; align-items: center; }
    .footer-links { justify-content: center; }
}