:root{--primary-color: #007aff;--primary-color-hover: #1963db;--bg-color: #ffffff;--text-color: #2b2b2b;--text-muted: #666666;--bg-secondary: #f9f9f9;--border-radius: 8px;--transition: all .3s cubic-bezier(.25, .8, .25, 1);--header-height: 80px}*{box-sizing:border-box;margin:0;padding:0}img,video{max-width:100%;height:auto;display:block}body{font-family:Inter,system-ui,-apple-system,sans-serif;color:var(--text-color);background-color:var(--bg-color);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;margin-bottom:1rem;color:#111}h1{font-size:clamp(2.5rem,5vw,4rem);letter-spacing:-.02em}h2{font-size:clamp(2rem,4vw,3rem)}p{margin-bottom:1rem}a{color:var(--primary-color);text-decoration:none;transition:var(--transition)}a:hover{color:var(--primary-color-hover)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.header{height:var(--header-height);display:flex;align-items:center;position:sticky;top:0;background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;border-bottom:1px solid rgba(0,0,0,.05)}.header .container{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.2rem;color:#111}.logo img{height:40px}.nav{display:flex;gap:2rem;align-items:center}.nav a{color:var(--text-color);font-weight:500;font-size:1rem;position:relative}.nav a:after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background-color:var(--primary-color);transition:var(--transition)}.nav a:hover:after{width:100%}.nav a.active{color:var(--primary-color)}.nav a.active:after{width:100%}.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-color)}@media(max-width:768px){.nav{display:none;position:absolute;top:var(--header-height);left:0;width:100%;background:#fff;flex-direction:column;padding:20px;box-shadow:0 10px 15px #0000000d}.nav.open{display:flex}.mobile-menu-btn{display:block}}.btn{display:inline-block;padding:12px 24px;background-color:var(--primary-color);color:#fff;font-weight:600;border-radius:var(--border-radius);border:none;cursor:pointer;text-align:center;transition:var(--transition);box-shadow:0 4px 6px #007aff33}.btn:hover{background-color:var(--primary-color-hover);color:#fff;transform:translateY(-2px);box-shadow:0 6px 12px #007aff4d}.btn-secondary{background-color:#f1f1f1;color:var(--text-color);box-shadow:none}.btn-secondary:hover{background-color:#e4e4e4;color:var(--text-color);box-shadow:0 4px 6px #0000000d}.hero{padding:80px 0;background:radial-gradient(rgba(0,122,255,.08) 1px,transparent 1px),radial-gradient(circle at 15% 50%,rgba(0,122,255,.05),transparent 50%),radial-gradient(circle at 85% 30%,rgba(0,122,255,.05),transparent 50%),linear-gradient(135deg,#ffffff 0%,var(--bg-secondary) 100%);background-size:24px 24px,100% 100%,100% 100%,100% 100%;position:relative;overflow:hidden}.hero-content{display:flex;align-items:center;gap:40px}.hero-text{flex:1}.hero-text p.lead{font-size:1.25rem;color:var(--text-muted);margin-bottom:2rem}.hero-image{flex:1;min-width:0;width:100%;position:relative;display:flex;justify-content:center;align-items:center}.hero-image img{width:100%;max-width:640px;height:auto;object-fit:contain;border-radius:var(--border-radius);animation:float 6s ease-in-out infinite}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-15px)}to{transform:translateY(0)}}@media(max-width:992px){.hero-content{flex-direction:column;text-align:center}.hero-image{width:100%;max-width:100%;margin-top:2rem}.hero-image img{width:100%;max-width:500px;height:auto}}.search-form{display:flex;gap:10px;max-width:500px;margin-top:2rem}@media(max-width:992px){.search-form{margin:2rem auto}}.search-input{flex:1;padding:14px 20px;border:2px solid #eaeaea;border-radius:var(--border-radius);font-size:1rem;font-family:inherit;transition:var(--transition)}.search-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #007aff1a}.ai-section{padding:100px 0;text-align:center;position:relative;background:radial-gradient(rgba(0,122,255,.08) 1px,transparent 1px),linear-gradient(180deg,var(--bg-secondary) 0%,rgba(0,122,255,.05) 50%,#f4f6f8 100%);background-size:24px 24px,100% 100%}.latest-posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.post-card{background:#fff;border-radius:var(--border-radius);padding:20px;box-shadow:0 4px 10px #0000000d;transition:var(--transition);display:flex;flex-direction:column}.post-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px #007aff1a}.post-card h3{font-size:1.1rem;margin-bottom:10px}.post-card h3 a{color:var(--text-color)}.post-card h3 a:hover{color:var(--primary-color)}.post-meta{margin-top:auto;font-size:.85rem;color:var(--text-muted);display:flex;justify-content:space-between}.ai-card{max-width:800px;margin:0 auto;padding:40px;background:var(--bg-secondary);border-radius:16px;box-shadow:0 10px 30px #00000008;position:relative;overflow:hidden}.ai-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),#ff8a65)}.ai-card p{font-size:1.15rem;color:#444}.footer{background-color:#f9fafb;padding:60px 0 20px;border-top:1px solid #eaeaea}.footer-content{display:flex;justify-content:space-between;flex-wrap:wrap;gap:40px;margin-bottom:40px}.footer-col{flex:1;min-width:250px}.footer-col h4{margin-bottom:1.5rem;font-size:1.1rem}.footer-col ul{list-style:none}.footer-col ul li{margin-bottom:.5rem}.footer-col ul li a{color:var(--text-muted)}.footer-col ul li a:hover{color:var(--primary-color)}.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #eaeaea;color:var(--text-muted);font-size:.9rem}.text-center{text-align:center}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.mt-4{margin-top:1rem}.video-wrapper{position:relative;width:100%;max-width:800px;margin:0 auto 3rem;aspect-ratio:16 / 9;border-radius:12px;overflow:hidden;box-shadow:0 20px 40px #0000001a}.video-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}.book-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-bottom:60px}.book-grid.reversed{direction:rtl}.book-grid.reversed>*{direction:ltr}@media(max-width:768px){.book-grid{grid-template-columns:1fr}}.book-img{width:100%;border-radius:var(--border-radius);box-shadow:0 15px 35px #0000001a;transition:var(--transition)}.book-img:hover{transform:translateY(-5px);box-shadow:0 20px 45px #00000026}.book-list{list-style-type:disc;padding-left:20px;margin-bottom:1.5rem}.book-list li{margin-bottom:.5rem}.lang-switcher{display:inline-flex;align-items:center;gap:4px;background:var(--bg-secondary);padding:4px 6px;border-radius:20px;border:1px solid rgba(0,0,0,.08)}.lang-btn{background:none;border:none;cursor:pointer;font-family:inherit;font-weight:600;font-size:.85rem;color:var(--text-muted);padding:4px 10px;border-radius:14px;transition:var(--transition)}.lang-btn:hover{color:var(--primary-color)}.lang-btn.active{background:var(--primary-color);color:#fff;box-shadow:0 2px 4px #007aff40}