* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif; color: #1F2937; overflow-x: hidden; }

.gradient-text { background: linear-gradient(135deg, #3BA855 0%, #0F8EC7 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.gradient-bg { background: linear-gradient(135deg, #3BA855 0%, #0F8EC7 100%); }
.gradient-border { border-image: linear-gradient(135deg, #3BA855, #0F8EC7) 1; }

.glass-card { background: rgba(255,255,255,0.03); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,0.06); }
.glass-card:hover { background: rgba(255,255,255,0.07); border-color: rgba(59,168,85,0.3); }

.btn-primary { background: linear-gradient(135deg, #3BA855 0%, #0F8EC7 100%); box-shadow: 0 4px 20px rgba(59,168,85,0.3); transition: all 0.3s cubic-bezier(0.4,0,0.2,1); }
.btn-primary:hover { box-shadow: 0 8px 30px rgba(59,168,85,0.5); transform: translateY(-2px); }

.btn-outline { border: 1.5px solid rgba(255,255,255,0.3); transition: all 0.3s cubic-bezier(0.4,0,0.2,1); }
.btn-outline:hover { border-color: #3BA855; background: rgba(59,168,85,0.1); }

.btn-outline-dark { border: 1.5px solid rgba(59,168,85,0.3); color: #3BA855; transition: all 0.3s cubic-bezier(0.4,0,0.2,1); }
.btn-outline-dark:hover { border-color: #3BA855; background: rgba(59,168,85,0.1); }

.card-hover { transition: all 0.3s cubic-bezier(0.4,0,0.2,1); }
.card-hover:hover { transform: translateY(-6px); }

.nav-scrolled { background: rgba(11,29,46,0.95) !important; backdrop-filter: blur(20px); box-shadow: 0 2px 20px rgba(0,0,0,0.3); }

.nav-link-active { color: #3BA855 !important; }
.nav-link-active::after { content: ''; position: absolute; bottom: -4px; left: 50%; transform: translateX(-50%); width: 16px; height: 2px; background: #3BA855; border-radius: 1px; }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
@keyframes pulse-glow { 0%, 100% { opacity: 0.4; } 50% { opacity: 0.8; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.animate-float { animation: float 6s ease-in-out infinite; will-change: transform; }
.animate-pulse-glow { animation: pulse-glow 3s ease-in-out infinite; }
.animate-fadeInUp { animation: fadeInUp 0.8s ease-out forwards; }

.hero-grid { background-image: linear-gradient(rgba(59,168,85,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(59,168,85,0.05) 1px, transparent 1px); background-size: 60px 60px; }

.stat-number { font-family: "Inter", "SF Pro Display", sans-serif; font-weight: 700; }

.section-title::after { content: ''; display: block; width: 60px; height: 3px; background: linear-gradient(135deg, #3BA855, #0F8EC7); border-radius: 2px; margin: 16px auto 0; }

.tab-active { background: linear-gradient(135deg, #3BA855 0%, #0F8EC7 100%); color: white !important; }

.tech-icon { width: 72px; height: 72px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 32px; }

.case-tag { font-size: 12px; padding: 4px 12px; border-radius: 20px; }

.news-card-img { aspect-ratio: 16/10; overflow: hidden; }
.news-card-img > * { transition: transform 0.5s ease; }
.news-card:hover .news-card-img > * { transform: scale(1.08); }

.footer-link { transition: color 0.2s; }
.footer-link:hover { color: #3BA855; }

.sol-content { transition: opacity 0.3s ease, transform 0.3s ease; }
.sol-content.switching { opacity: 0; transform: translateY(8px); }

.form-input { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; padding: 12px 16px; color: white; font-size: 14px; width: 100%; transition: border-color 0.2s, box-shadow 0.2s; }
.form-input::placeholder { color: rgba(255,255,255,0.3); }
.form-input:focus { outline: none; border-color: rgba(59,168,85,0.5); box-shadow: 0 0 0 3px rgba(59,168,85,0.15); }

.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='rgba(255,255,255,0.4)' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }

.form-input-light { background: #F9FAFB; border: 1px solid #E5E7EB; border-radius: 12px; padding: 12px 16px; color: #1F2937; font-size: 14px; width: 100%; transition: border-color 0.2s, box-shadow 0.2s; }
.form-input-light::placeholder { color: #9CA3AF; }
.form-input-light:focus { outline: none; border-color: rgba(59,168,85,0.5); box-shadow: 0 0 0 3px rgba(59,168,85,0.15); }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.back-to-top { position: fixed; bottom: 32px; right: 32px; width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, #3BA855, #0F8EC7); color: white; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(59,168,85,0.3); opacity: 0; visibility: hidden; transform: translateY(10px); transition: all 0.3s cubic-bezier(0.4,0,0.2,1); z-index: 40; cursor: pointer; }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { box-shadow: 0 8px 30px rgba(59,168,85,0.5); transform: translateY(-2px); }

.dropdown-bridge::after { content: ''; position: absolute; top: 100%; left: 0; right: 0; height: 8px; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0B1D2E; }
::-webkit-scrollbar-thumb { background: linear-gradient(135deg, #3BA855, #0F8EC7); border-radius: 3px; }

.mobile-menu { transform: translateX(100%); transition: transform 0.3s ease; }
.mobile-menu.open { transform: translateX(0); }

.mobile-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 45; opacity: 0; visibility: hidden; transition: all 0.3s; }
.mobile-overlay.open { opacity: 1; visibility: visible; }

.sol-tabs-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.sol-tabs-scroll::-webkit-scrollbar { display: none; }

.page-hero { position: relative; padding: 160px 0 80px; background: #0B1D2E; overflow: hidden; }
.page-hero .hero-grid { position: absolute; inset: 0; }

.breadcrumb-link { transition: color 0.2s; }
.breadcrumb-link:hover { color: #3BA855; }

.feature-card { background: linear-gradient(to bottom, #F9FAFB, #FFFFFF); border: 1px solid #F3F4F6; border-radius: 16px; padding: 32px; transition: all 0.3s cubic-bezier(0.4,0,0.2,1); }
.feature-card:hover { transform: translateY(-6px); border-color: rgba(59,168,85,0.3); box-shadow: 0 20px 40px -12px rgba(59,168,85,0.1); }

.prose h2 { font-size: 1.5rem; font-weight: 700; color: #1F2937; margin: 2rem 0 1rem; }
.prose h3 { font-size: 1.25rem; font-weight: 600; color: #1F2937; margin: 1.5rem 0 0.75rem; }
.prose p { color: #4B5563; line-height: 1.75; margin-bottom: 1rem; }
.prose ul, .prose ol { color: #4B5563; line-height: 1.75; margin-bottom: 1rem; padding-left: 1.5rem; }
.prose li { margin-bottom: 0.25rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .animate-float, .animate-pulse-glow, .animate-fadeInUp { animation: none !important; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 2rem !important; }
  .hero-sub { font-size: 1rem !important; }
  .stat-grid { grid-template-columns: repeat(2, 1fr) !important; }
}