:root{--primary-color:#e97316;--primary-hover:#f59e28;--primary-active:#d6630e;--primary-light:#fff7ed;--primary-bg:#fff7ed;--text-primary:#1a1a1a;--text-secondary:#666;--text-tertiary:#999;--bg-white:#fff;--bg-light:#fafafa;--bg-gray:#f5f5f5;--border-color:#e8e8e8;--border-light:#f0f0f0;--success-color:#18a058;--warning-color:#f0a020;--error-color:#d03050;--info-color:#2080f0;--shadow-sm:0 2px 8px rgba(0,0,0,.06);--shadow-md:0 4px 16px rgba(0,0,0,.08);--shadow-lg:0 8px 32px rgba(0,0,0,.12);--shadow-xl:0 16px 48px rgba(0,0,0,.16);--transition-fast:.15s ease;--transition-normal:.3s ease;--transition-slow:.5s ease;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg-white);color:var(--text-primary);font-family:PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::-webkit-scrollbar{height:8px;width:8px}::-webkit-scrollbar-track{background:var(--bg-gray);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb{background:#d0d0d0;border-radius:var(--radius-full);-webkit-transition:background var(--transition-fast);transition:background var(--transition-fast)}::-webkit-scrollbar-thumb:hover{background:#b0b0b0}a{color:#333;text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-hover)}.btn{align-items:center;border:none;border-radius:var(--radius-md);cursor:pointer;display:inline-flex;font-size:16px;font-weight:500;gap:8px;justify-content:center;padding:12px 24px;transition:all var(--transition-normal)}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0,var(--primary-hover) 100%);box-shadow:0 4px 14px #e973164d;color:#fff}.btn-primary:hover{box-shadow:0 6px 20px #e9731666;transform:translateY(-2px)}.btn-secondary{background:var(--bg-white);border:1px solid var(--border-color);color:var(--text-primary)}.btn-secondary:hover{border-color:var(--primary-color);color:var(--primary-color)}.card{background:var(--bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);transition:all var(--transition-normal)}.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.container{margin:0 auto;max-width:1200px;padding:0 24px}.section{padding:80px 0}.section-header{margin-bottom:60px;text-align:center}.section-title{color:var(--text-primary);font-size:36px;font-weight:700;margin-bottom:16px}.section-subtitle{color:var(--text-secondary);font-size:18px;margin:0 auto;max-width:600px}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes blob{0%{transform:translate(0) scale(1)}33%{transform:translate(30px,-50px) scale(1.1)}66%{transform:translate(-20px,20px) scale(.9)}to{transform:translate(0) scale(1)}}.animate-fade-in-up{animation:fadeInUp .6s ease forwards}.animate-fade-in{animation:fadeIn .6s ease forwards}.animate-slide-in-left{animation:slideInLeft .6s ease forwards}.animate-slide-in-right{animation:slideInRight .6s ease forwards}.animate-pulse{animation:pulse 2s ease-in-out infinite}.animate-float{animation:float 3s ease-in-out infinite}.animate-blob{animation:blob 7s infinite}.blob-bg{border-radius:50%;filter:blur(80px);height:400px;opacity:.5;position:absolute;width:400px}.blob-1{background:linear-gradient(135deg,#f97316,#fb923c);right:-100px;top:-100px}.blob-2{background:linear-gradient(135deg,#f97316,#f59e28);bottom:-100px;left:-100px}.text-center{text-align:center}.text-primary{color:var(--primary-color)}.font-bold{font-weight:700}.mb-4{margin-bottom:16px}.mb-8{margin-bottom:32px}.mt-4{margin-top:16px}.mt-8{margin-top:32px}.py-4{padding-bottom:16px;padding-top:16px}.py-8{padding-bottom:32px;padding-top:32px}.py-16{padding-bottom:64px;padding-top:64px}.py-20{padding-bottom:80px;padding-top:80px}.px-4{padding-left:16px;padding-right:16px}.px-8{padding-left:32px;padding-right:32px}.gap-4{gap:16px}.gap-8{gap:32px}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.grid{display:grid}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}.grid-cols-4{grid-template-columns:repeat(4,1fr)}@media(max-width:768px){.grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}.section-title{font-size:28px}.section{padding:60px 0}}