:root{--bg-deep-space:#050510;--bg-space:#0a0a1a;--bg-space-2:#0d1033;--bg-space-3:#141440;--nebula-purple:linear-gradient(135deg,#1a0533 0%,#2d1b69 50%,#0a0a1a 100%);--nebula-blue:linear-gradient(135deg,#0a1628 0%,#1a3a6e 50%,#0a0a1a 100%);--nebula-pink:linear-gradient(135deg,#2d0a2e 0%,#6b1d5e 40%,#1a0533 100%);--nebula-cyan:linear-gradient(135deg,#0a1a2e 0%,#0d4f6e 50%,#0a0a1a 100%);--galaxy-gradient:linear-gradient(135deg,#667eea 0%,#764ba2 50%,#f093fb 100%);--accent-cyan:#00d4ff;--accent-purple:#a855f7;--accent-gold:#fbbf24;--accent-pink:#ec4899;--accent-green:#10b981;--text-primary:#f0f0ff;--text-secondary:#a0a0c0;--text-muted:#6b6b8d;--text-accent:#00d4ff;--border-glow:rgba(0,212,255,0.2);--glass-bg:rgba(20,20,64,0.4);--glass-border:rgba(255,255,255,0.08);--font-sans:'Inter','Segoe UI',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-glow-cyan:0 0 30px rgba(0,212,255,0.15);--shadow-glow-purple:0 0 30px rgba(168,85,247,0.15);--shadow-card:0 8px 32px rgba(0,0,0,0.4)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg-space);color:var(--text-primary);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}a{color:var(--accent-cyan);text-decoration:none;transition:color 0.2s}a:hover{color:var(--accent-purple)}img{max-width:100%;height:auto;display:block}.starry-bg{position:relative;background:var(--bg-space);overflow:hidden;min-height:100vh}.starry-bg::before{content:'';position:absolute;inset:0;background-image:radial-gradient(1px 1px at 20px 30px,#ffffff,transparent),radial-gradient(1px 1px at 40px 70px,rgba(255,255,255,0.8),transparent),radial-gradient(1.5px 1.5px at 90px 40px,#ffffff,transparent),radial-gradient(1px 1px at 130px 80px,rgba(255,255,255,0.6),transparent),radial-gradient(2px 2px at 160px 120px,#ffffff,transparent),radial-gradient(1px 1px at 200px 50px,rgba(255,255,255,0.7),transparent),radial-gradient(1.5px 1.5px at 250px 150px,rgba(255,255,255,0.9),transparent),radial-gradient(1px 1px at 300px 100px,rgba(255,255,255,0.5),transparent);background-size:320px 200px;animation:star-twinkle 4s ease-in-out infinite alternate;pointer-events:none;z-index:0}.starry-bg::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 80% 50% at 20% 20%,rgba(102,126,234,0.12),transparent),radial-gradient(ellipse 60% 40% at 80% 60%,rgba(168,85,247,0.10),transparent),radial-gradient(ellipse 50% 30% at 50% 80%,rgba(0,212,255,0.06),transparent);pointer-events:none;z-index:0}.starry-bg>*{position:relative;z-index:1}@keyframes star-twinkle{0%{opacity:0.6}50%{opacity:0.9}100%{opacity:1}}.nebula-purple-bg{background:var(--nebula-purple)}.nebula-blue-bg{background:var(--nebula-blue)}.nebula-pink-bg{background:var(--nebula-pink)}.nebula-cyan-bg{background:var(--nebula-cyan)}.glass-card{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:24px;transition:all 0.3s ease}.glass-card:hover{border-color:var(--border-glow);box-shadow:var(--shadow-glow-cyan);transform:translateY(-2px)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius-sm);font-weight:600;font-size:0.95rem;cursor:pointer;border:none;transition:all 0.3s ease;text-decoration:none;line-height:1.4}.btn-primary{background:var(--galaxy-gradient);color:#fff;box-shadow:0 4px 20px rgba(102,126,234,0.3)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 30px rgba(102,126,234,0.5);color:#fff}.btn-secondary{background:transparent;color:var(--accent-cyan);border:1px solid var(--accent-cyan)}.btn-secondary:hover{background:rgba(0,212,255,0.1);box-shadow:var(--shadow-glow-cyan);color:var(--accent-cyan)}.btn-gold{background:var(--accent-gold);color:#1a1a2e}.btn-gold:hover{transform:translateY(-2px);box-shadow:0 6px 25px rgba(251,191,36,0.4);color:#1a1a2e}.navbar-starry{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(10,10,26,0.7);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid transparent;transition:all 0.3s ease}.navbar-starry.scrolled{border-bottom-color:var(--border-glow);background:rgba(10,10,26,0.9)}.navbar-starry .nav-container{max-width:1280px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between}.navbar-starry .nav-logo{font-size:1.4rem;font-weight:700;background:var(--galaxy-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.navbar-starry .nav-links{display:flex;gap:32px;list-style:none}.navbar-starry .nav-links a{color:var(--text-secondary);font-weight:500;font-size:0.95rem}.navbar-starry .nav-links a:hover{color:var(--accent-cyan)}.hero-starry{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 24px 80px}.hero-starry h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:700;line-height:1.2;letter-spacing:-0.02em;margin-bottom:24px}.hero-starry h1 .gradient-text{background:var(--galaxy-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-starry .hero-subtitle{font-size:clamp(1rem,2vw,1.25rem);color:var(--text-secondary);max-width:700px;margin:0 auto 40px}.hero-starry .hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.section-starry{padding:80px 24px;max-width:1280px;margin:0 auto}.section-starry .section-title{font-size:clamp(1.5rem,3.5vw,2.5rem);font-weight:700;text-align:center;margin-bottom:16px}.section-starry .section-subtitle{color:var(--text-secondary);text-align:center;max-width:600px;margin:0 auto 48px}.grid-starry{display:grid;gap:24px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.grid-4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.footer-starry{background:var(--bg-deep-space);border-top:1px solid var(--glass-border);padding:60px 24px 30px;position:relative}.footer-starry::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:var(--galaxy-gradient);opacity:0.5}.footer-starry .footer-grid{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;margin-bottom:40px}.footer-starry .footer-col h4{color:var(--text-primary);font-size:1rem;margin-bottom:16px}.footer-starry .footer-col ul{list-style:none}.footer-starry .footer-col li{margin-bottom:8px}.footer-starry .footer-col a{color:var(--text-secondary);font-size:0.9rem}.footer-starry .footer-col a:hover{color:var(--accent-cyan)}.footer-starry .footer-bottom{max-width:1280px;margin:0 auto;padding-top:24px;border-top:1px solid var(--glass-border);text-align:center;color:var(--text-muted);font-size:0.85rem}.gradient-text{background:var(--galaxy-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.text-center{text-align:center}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.mb-4{margin-bottom:32px}@media (max-width:768px){.navbar-starry .nav-links{display:none}.hero-starry{padding:100px 16px 60px}.section-starry{padding:60px 16px}.glass-card{padding:20px}.btn{padding:10px 20px;font-size:0.9rem}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-space)}::-webkit-scrollbar-thumb{background:var(--bg-space-3);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent-purple)}::selection{background:rgba(0,212,255,0.3);color:#fff}