:root{--brand:#0066FF;--brand-2:#00A8E8;--brand-3:#6B2FFF;--accent:#00C896;--grad-brand:linear-gradient(135deg, #0066FF 0%, #00A8E8 100%);--grad-brand-2:linear-gradient(135deg, #6B2FFF 0%, #0066FF 50%, #00A8E8 100%);--grad-accent:linear-gradient(135deg, #00A8E8 0%, #00C896 100%);--bg-0:#F4F7FB;--bg-1:#EAEFF7;--bg-2:#FFFFFF;--bg-3:#DDE5F0;--bg-glass:rgba(255, 255, 255, 0.72);--text-0:#0F172A;--text-1:#475569;--text-2:#94A3B8;--text-3:#CBD5E1;--border-1:rgba(15, 23, 42, 0.08);--border-2:rgba(15, 23, 42, 0.14);--border-brand:rgba(0, 102, 255, 0.3);--shadow-sm:0 2px 8px rgba(15, 23, 42, 0.06);--shadow-md:0 8px 24px rgba(15, 23, 42, 0.08);--shadow-lg:0 20px 60px rgba(15, 23, 42, 0.10);--shadow-glow:0 0 40px rgba(0, 102, 255, 0.12);--r-sm:6px;--r-md:12px;--r-lg:20px;--r-xl:28px;--nav-h:72px;--max-w:1280px;--ease:cubic-bezier(0.22, 1, 0.36, 1);--t-fast:0.2s var(--ease);--t-med:0.4s var(--ease)}*,::after,::before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.65;color:var(--text-0);background:var(--bg-0);overflow-x:hidden;min-height:100vh}a{color:inherit;text-decoration:none;transition:color var(--t-fast)}a:hover{color:var(--brand-2)}img{max-width:100%;display:block}button{font-family:inherit;cursor:pointer;border:none;background:0 0;color:inherit}ol,ul{list-style:none}input,select,textarea{font-family:inherit;font-size:inherit}.bg-decor{position:fixed;inset:0;z-index:-1;background:radial-gradient(ellipse at 20% 0,rgba(0,102,255,.06),transparent 50%),radial-gradient(ellipse at 80% 30%,rgba(107,47,255,.05),transparent 50%),radial-gradient(ellipse at 50% 100%,rgba(0,168,232,.04),transparent 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24px;display:flex;align-items:center;justify-content:space-between;gap:32px}.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.5px}.logo-mark{width:36px;height:36px;display:block;object-fit:contain}.logo-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}.nav-menu{display:flex;align-items:center;gap:4px}.nav-link{position:relative;padding:10px 18px;font-size:15px;font-weight:500;color:var(--text-1);border-radius:var(--r-sm);transition:all var(--t-fast)}.nav-link:hover{color:var(--text-0);background:rgba(0,102,255,.06)}.nav-link.active{color:var(--text-0)}.nav-link.active::after{content:"";position:absolute;bottom:-2px;left:50%;transform:translateX(-50%);width:24px;height:2px;background:var(--grad-brand);border-radius:2px;box-shadow:0 0 8px var(--brand)}.nav-cta{padding:10px 20px;background:var(--grad-brand);color:#fff;border-radius:var(--r-sm);font-size:14px;font-weight:600;transition:all var(--t-fast);box-shadow:0 4px 12px rgba(0,102,255,.3)}.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,102,255,.5);color:#fff}.nav-toggle{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px}.nav-toggle span{width:22px;height:2px;background:var(--text-0);border-radius:2px;transition:all var(--t-fast)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:var(--r-sm);font-size:15px;font-weight:600;transition:all var(--t-fast);cursor:pointer;white-space:nowrap}.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 4px 16px rgba(0,102,255,.35)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,102,255,.55);color:#fff}.btn-ghost{background:rgba(0,102,255,.06);color:var(--text-0);border:1px solid var(--border-2)}.btn-ghost:hover{background:rgba(0,102,255,.1);border-color:var(--border-brand);color:#fff}.btn-lg{padding:16px 36px;font-size:16px}.section{padding:100px 0;position:relative}.section-sm{padding:60px 0}.section-head{text-align:center;max-width:720px;margin:0 auto 56px}.section-tag{display:inline-block;padding:6px 14px;font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--brand-2);background:rgba(0,168,232,.1);border:1px solid rgba(0,168,232,.25);border-radius:100px;margin-bottom:20px}.section-title{font-size:clamp(28px, 4vw, 42px);font-weight:800;line-height:1.2;letter-spacing:-.5px;margin-bottom:16px}.section-title .grad{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}.section-desc{font-size:16px;color:var(--text-1);line-height:1.7}.card{background:var(--bg-glass);border:1px solid var(--border-1);border-radius:var(--r-lg);padding:32px;transition:all var(--t-med);backdrop-filter:blur(10px);position:relative;overflow:hidden}.card::before{content:"";position:absolute;top:0;left:-100%;width:100%;height:1px;background:var(--grad-brand);transition:left var(--t-med)}.card:hover{transform:translateY(-6px);border-color:var(--border-brand);box-shadow:var(--shadow-lg),var(--shadow-glow)}.card:hover::before{left:0}.footer{border-top:1px solid var(--border-1);background:var(--bg-1);padding:64px 0 32px;margin-top:80px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:48px;margin-bottom:48px}.footer-brand .logo{margin-bottom:16px}.footer-desc{color:var(--text-1);font-size:14px;line-height:1.7;margin-bottom:20px}.footer-social{display:flex;gap:10px}.footer-social a{width:36px;height:36px;display:grid;place-items:center;border-radius:8px;background:rgba(0,102,255,.06);border:1px solid var(--border-1);font-size:12px;font-weight:600;color:var(--text-1);transition:.3s}.footer-social a:hover{background:var(--grad-brand);color:#fff;border-color:transparent;transform:translateY(-2px)}.footer-col h4{font-size:14px;font-weight:600;color:var(--text-0);margin-bottom:18px;letter-spacing:.5px}.footer-col ul li{margin-bottom:12px}.footer-col ul li a{color:var(--text-1);font-size:14px}.footer-col ul li a:hover{color:var(--brand-2)}.footer-bottom{border-top:1px solid var(--border-1);padding-top:24px;display:flex;flex-direction:column;align-items:flex-end;gap:6px;color:var(--text-2);font-size:13px}.footer-bottom .copy{cursor:pointer;user-select:none}@keyframes float-up{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-glow{0%,100%{box-shadow:0 0 20px rgba(0,102,255,.12)}50%{box-shadow:0 0 40px rgba(0,102,255,.25)}}@keyframes rotate-bg{from{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}.reveal{opacity:0;transform:translateY(30px);transition:all .8s var(--ease)}.reveal.in{opacity:1;transform:translateY(0)}.page-hero{padding:calc(var(--nav-h) + 80px) 0 60px;text-align:center;position:relative;overflow:hidden}.page-hero h1{font-size:clamp(36px, 5vw, 56px);font-weight:800;letter-spacing:-1px;margin-bottom:20px;line-height:1.15}.page-hero h1 .grad{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}.page-hero p{font-size:18px;color:var(--text-1);max-width:640px;margin:0 auto}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-1)}::-webkit-scrollbar-thumb{background:var(--bg-3);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--brand)}::selection{background:var(--brand);color:#fff}@media (max-width:968px){.nav-menu{position:fixed;top:var(--nav-h);left:0;right:0;z-index:99;background:rgba(255,255,255,.98);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);flex-direction:column;align-items:stretch;padding:16px;gap:4px;border-bottom:1px solid var(--border-1);box-shadow:var(--shadow-md);transform:translateY(-120%);transition:transform var(--t-med);max-height:calc(100vh - var(--nav-h));overflow-y:auto}.nav-menu.open{transform:translateY(0)}.nav-menu li{width:100%}.nav-link{display:block;padding:14px 18px;border-radius:var(--r-sm)}.nav-link.active::after{display:none}.nav-link.active{background:rgba(0,102,255,.08)}.nav-toggle{display:flex}.nav-toggle.open span:first-child{transform:translateY(7px) rotate(45deg)}.nav-toggle.open span:nth-child(2){opacity:0}.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.nav-cta{display:block;margin-top:8px;text-align:center}.section{padding:60px 0}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-brand{grid-column:1/-1}}@media (max-width:640px){.container{padding:0 16px}.nav-inner{padding:0 16px;gap:16px}.footer-grid{grid-template-columns:1fr}.footer-bottom{align-items:flex-end}.section-head{margin-bottom:40px}}