*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:#1a1a2e;background:#f5f6fa;line-height:1.6;-webkit-font-smoothing:antialiased}.container{max-width:1200px;margin:0 auto;padding:0 24px}.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:#ffffffd9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(0,0,0,.06)}.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}.logo{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-links{display:flex;gap:32px}.nav-links a{text-decoration:none;color:#555;font-size:.9rem;font-weight:500;transition:color .2s}.nav-links a:hover{color:#667eea}.hero{position:relative;min-height:85vh;display:flex;align-items:center;justify-content:center;background-size:cover;background-position:center;background-repeat:no-repeat;margin-top:0}.hero-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#667eead9,#764ba2d9)}.hero-content{position:relative;z-index:1;text-align:center;padding:24px;max-width:800px}.hero-title{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:-.02em;text-shadow:0 2px 12px rgba(0,0,0,.15)}.hero-sub{font-size:clamp(1rem,2vw,1.2rem);color:#ffffffe6;line-height:1.6;max-width:600px;margin:0 auto}.section{padding:100px 0}.section-title{font-size:2rem;font-weight:700;text-align:center;margin-bottom:60px;position:relative}.section-title:after{content:"";position:absolute;bottom:-12px;left:50%;transform:translate(-50%);width:48px;height:3px;border-radius:2px;background:linear-gradient(135deg,#667eea,#764ba2)}.about-section{background:#fff}.about-text{max-width:800px;margin:0 auto 16px}.about-text p{color:#555;font-size:1rem;line-height:1.9;text-indent:2em}.apps-section{background:#f5f6fa}.app-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px}.app-card{background:#fff;border-radius:16px;padding:32px;transition:transform .3s ease,box-shadow .3s ease;cursor:default;animation:fadeUp .6s ease backwards;display:flex;flex-direction:column;align-items:center;text-align:center;border:1px solid rgba(0,0,0,.04)}.app-card:hover{transform:translateY(-6px);box-shadow:0 20px 60px #667eea1f}.card-icon{width:72px;height:72px;object-fit:contain;border-radius:16px;margin-bottom:20px}.card-name{font-size:1.15rem;font-weight:700;color:#1a1a2e;margin-bottom:12px}.card-info{font-size:.875rem;color:#777;line-height:1.7;flex:1}.card-beian{margin-top:12px;font-size:.75rem;color:#aaa}.footer{background:#1a1a2e;color:#ffffffb3;padding:64px 0 32px}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-bottom:48px}.footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:16px}.footer-col p{font-size:.875rem;line-height:1.8}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:.8rem}.footer-bottom a{color:#fff9;text-decoration:none;transition:color .2s}.footer-bottom a:hover{color:#667eea}.loading{height:100vh;display:flex;align-items:center;justify-content:center;background:#f5f6fa}.loader{width:40px;height:40px;border:3px solid #e0e0e0;border-top-color:#667eea;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.app-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:32px}.footer-bottom{flex-direction:column;text-align:center}.section{padding:60px 0}.nav-links{gap:20px}.hero{min-height:70vh}}