*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0b0d14;--bg2:#11141e;--bg3:#181c2a;--accent:#3b82f6;--accent2:#2563eb;--text:#e8eaed;--text2:#9aa0a6;--text3:#5f6368;--border:#2a2e3a;--radius:12px;--shadow:0 4px 24px rgba(0,0,0,.4)}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans SC",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
a{color:var(--accent);text-decoration:none;transition:.3s}
a:hover{color:var(--accent2)}
img{max-width:100%;height:auto;display:block}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:var(--radius);font-weight:600;font-size:15px;cursor:pointer;transition:.3s;border:2px solid transparent}
.btn-solid{background:var(--accent);color:var(--bg);border-color:var(--accent)}
.btn-solid:hover{background:var(--accent2);border-color:var(--accent2);color:var(--bg)}
.btn-outline{background:transparent;color:var(--accent);border-color:var(--accent)}
.btn-outline:hover{background:var(--accent);color:var(--bg)}
header{position:sticky;top:0;z-index:100;background:rgba(11,13,20,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:16px}
.logo{display:flex;align-items:center;gap:10px}
.logo img{width:40px;height:40px;border-radius:8px}
.logo h1{font-size:18px;font-weight:700;color:var(--text)}
.logo span{font-size:12px;color:var(--text2);display:block;margin-top:-2px}
nav{display:flex;align-items:center;gap:8px}
nav a{padding:6px 14px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text2);transition:.3s}
nav a:hover,nav a.active{color:var(--text);background:var(--bg3)}
.menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:24px;cursor:pointer;padding:4px}
.hero{position:relative;overflow:hidden;padding:60px 0 80px}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 50% at 50% 40%,rgba(59,130,246,.08),transparent);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-tag{display:inline-block;background:rgba(59,130,246,.15);color:var(--accent);padding:4px 14px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:16px}
.hero h2{font-size:clamp(28px,4vw,48px);font-weight:800;line-height:1.2;margin-bottom:16px}
.hero h2 em{color:var(--accent);font-style:normal}
.hero p{font-size:16px;color:var(--text2);margin-bottom:28px;max-width:520px}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px}
.hero-stats{display:flex;gap:24px;margin-top:32px;flex-wrap:wrap}
.hero-stats div{text-align:center}
.hero-stats strong{display:block;font-size:24px;color:var(--accent)}
.hero-stats span{font-size:13px;color:var(--text3)}
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center}
.hero-carousel{position:relative;width:280px;height:auto;overflow:hidden;border-radius:24px}
.hero-carousel .hero-device{width:100%;border-radius:0;animation:fadeCarousel 12s infinite;position:absolute;top:0;left:0;opacity:0;box-shadow:var(--shadow);border:1px solid var(--border)}
.hero-carousel .hero-device:nth-child(1){animation-delay:0s}
.hero-carousel .hero-device:nth-child(2){animation-delay:4s}
.hero-carousel .hero-device:nth-child(3){animation-delay:8s}
.hero-carousel .hero-device:first-child{position:relative;opacity:1}
@keyframes fadeCarousel{0%,100%{opacity:0}5%{opacity:1}30%{opacity:1}35%{opacity:0}}
.hero-device{width:280px;border-radius:24px;box-shadow:var(--shadow);border:1px solid var(--border)}
.hero-rec{position:absolute;top:20px;right:20px;background:rgba(59,130,246,.9);color:#000;font-size:11px;font-weight:700;padding:2px 10px;border-radius:4px;letter-spacing:1px}
.section{padding:64px 0}
.section-header{text-align:center;margin-bottom:48px}
.section-header .tag{display:inline-block;background:rgba(59,130,246,.12);color:var(--accent);padding:4px 14px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:12px}
.section-header h2{font-size:clamp(22px,3vw,34px);font-weight:700;margin-bottom:12px}
.section-header p{color:var(--text2);max-width:600px;margin:0 auto;font-size:15px}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.feature-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:.3s}
.feature-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 8px 32px rgba(59,130,246,.1)}
.feature-icon{width:48px;height:48px;border-radius:12px;background:rgba(59,130,246,.12);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.feature-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--text2);line-height:1.7}
.download-box{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:40px;text-align:center}
.download-box h3{font-size:22px;font-weight:700;margin-bottom:8px}
.download-box p{color:var(--text2);font-size:15px;margin-bottom:24px}
.download-btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.download-btn{display:inline-flex;align-items:center;gap:10px;padding:16px 32px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:15px;font-weight:600;transition:.3s}
.download-btn:hover{background:var(--accent);border-color:var(--accent);color:var(--bg)}
.download-btn small{display:block;font-size:11px;font-weight:400;color:var(--text3)}
.download-btn:hover small{color:rgba(0,0,0,.6)}
.download-info{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;margin-top:24px;padding-top:24px;border-top:1px solid var(--border)}
.download-info span{font-size:13px;color:var(--text3)}
.download-info strong{color:var(--text2)}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}
.gallery img{border-radius:var(--radius);border:1px solid var(--border);width:100%;aspect-ratio:9/16;object-fit:cover;transition:.3s}
.gallery img:hover{border-color:var(--accent);transform:scale(1.02)}
.content-list{display:grid;gap:16px}
.content-item{display:flex;gap:16px;align-items:flex-start;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:.3s}
.content-item:hover{border-color:var(--accent)}
.content-num{flex-shrink:0;width:36px;height:36px;border-radius:50%;background:rgba(59,130,246,.15);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.content-body h4{font-size:15px;font-weight:600;margin-bottom:4px}
.content-body p{font-size:13px;color:var(--text2)}
.articles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.article-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:.3s}
.article-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.article-card .tag{font-size:12px;color:var(--accent);font-weight:600;margin-bottom:8px;display:block}
.article-card h3{font-size:16px;font-weight:600;margin-bottom:8px;line-height:1.5}
.article-card p{font-size:14px;color:var(--text2);margin-bottom:12px}
.article-card small{font-size:12px;color:var(--text3)}
.changelog{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:28px 32px;margin-top:20px;text-align:left}
.changelog h4{font-size:16px;font-weight:700;margin-bottom:12px;color:var(--accent)}
.changelog ul{list-style:none;padding:0}
.changelog li{font-size:14px;color:var(--text2);padding:6px 0;border-bottom:1px solid var(--border)}
.changelog li:last-child{border-bottom:none}
.changelog li::before{content:'✓ ';color:var(--accent);font-weight:700}
.reviews{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.review-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.review-card .stars{color:var(--accent);font-size:14px;margin-bottom:8px}
.review-card blockquote{font-size:14px;color:var(--text2);font-style:italic;margin-bottom:12px;line-height:1.7}
.review-card cite{font-size:13px;color:var(--text3);font-style:normal;display:block}
.about-hero{text-align:center;padding:20px 0}
.about-hero h2{font-size:clamp(28px,4vw,42px);font-weight:800;margin:12px 0 16px}
.about-hero h2 em{color:var(--accent);font-style:normal}
.about-hero p{color:var(--text2);max-width:600px;margin:0 auto;font-size:16px}
.timeline{max-width:600px;margin:0 auto;position:relative}
.timeline::before{content:'';position:absolute;left:120px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;padding:0 0 32px 140px}
.timeline-item:last-child{padding-bottom:0}
.tl-year{position:absolute;left:0;top:0;background:var(--accent);color:var(--bg);padding:4px 14px;border-radius:6px;font-size:13px;font-weight:700}
.timeline-item h3{font-size:17px;font-weight:600;margin-bottom:4px}
.timeline-item p{font-size:14px;color:var(--text2)}
.topic-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.topic-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.3s}
.topic-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 8px 32px rgba(59,130,246,.1)}
.topic-img{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden}
.topic-img img{width:100%;height:100%;object-fit:cover}
.topic-badge{position:absolute;left:12px;top:12px;background:var(--accent);color:var(--bg);padding:4px 12px;border-radius:6px;font-size:12px;font-weight:700}
.topic-card h3{font-size:16px;font-weight:600;padding:16px 16px 4px}
.topic-card p{font-size:14px;color:var(--text2);padding:0 16px 12px}
.topic-card small{font-size:12px;color:var(--text3);padding:0 16px 16px;display:block}
.tutorial-steps{max-width:700px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
.step-card{display:flex;gap:20px;align-items:flex-start;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:.3s}
.step-card:hover{border-color:var(--accent)}
.step-num{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--accent);color:var(--bg);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800}
.step-card h3{font-size:16px;font-weight:600;margin-bottom:6px}
.step-card p{font-size:14px;color:var(--text2)}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;max-width:700px;margin:0 auto}
.contact-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center}
.contact-card h4{font-size:15px;font-weight:600;margin-bottom:8px}
.contact-card p{font-size:14px;color:var(--text2)}
.comments-box{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:900px;margin:0 auto}
.comment-form{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.comment-form h4{font-size:16px;font-weight:600;margin-bottom:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.comment-form input,.comment-form textarea{width:100%;padding:12px 16px;background:var(--bg3);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;font-family:inherit;outline:none;transition:.3s}
.comment-form input:focus,.comment-form textarea:focus{border-color:var(--accent)}
.comment-form textarea{margin-bottom:12px;resize:vertical}
.comment-form .btn{width:100%;justify-content:center}
.comments-list{display:flex;flex-direction:column;gap:12px}
.comment-item{display:flex;gap:14px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:.3s}
.comment-item:hover{border-color:var(--accent)}
.comment-avatar{width:40px;height:40px;border-radius:50%;background:rgba(59,130,246,.15);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0}
.comment-body h5{font-size:14px;font-weight:600;margin-bottom:4px}
.comment-body p{font-size:13px;color:var(--text2);margin-bottom:6px}
.comment-body small{font-size:12px;color:var(--text3)}
.faq{max-width:720px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border);padding:20px 0}
.faq-q{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;font-size:15px;gap:16px}
.faq-q span{flex-shrink:0;font-size:20px;color:var(--accent);transition:.3s}
.faq-item.open .faq-q span{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:.3s;font-size:14px;color:var(--text2);line-height:1.7}
.faq-item.open .faq-a{max-height:300px;padding-top:12px}
footer{background:var(--bg2);border-top:1px solid var(--border);padding:48px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:32px}
.footer-brand p{font-size:14px;color:var(--text2);margin-top:12px;max-width:360px}
.footer-links h4{font-size:14px;font-weight:600;margin-bottom:12px}
.footer-links a{display:block;font-size:13px;color:var(--text3);margin-bottom:6px}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--border);font-size:13px;color:var(--text3);gap:12px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text3);margin-bottom:16px}
.breadcrumb a{color:var(--text3)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span::after{content:'/';margin-left:8px;color:var(--text3)}
.breadcrumb span:last-child::after{display:none}
@media(max-width:768px){
.menu-toggle{display:block;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center}
nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);flex-direction:column;padding:8px 0;gap:0;max-height:80vh;overflow-y:auto;-webkit-overflow-scrolling:touch}
nav.open{display:flex}
nav a{padding:14px 20px;font-size:15px;border-bottom:1px solid var(--border)}
nav a:last-child{border-bottom:none}
.hero-grid{grid-template-columns:1fr;gap:24px}
.hero{padding:28px 0 40px}
.hero h2{font-size:clamp(22px,5vw,28px)}
.hero p{font-size:14px;margin-bottom:20px}
.hero-visual{order:-1;display:flex;justify-content:center}
.hero-carousel{width:180px}
.hero-device{width:180px}
.hero-stats{gap:16px}
.hero-stats strong{font-size:20px}
.hero-btns{gap:10px}
.hero-btns .btn{flex:1;justify-content:center;padding:14px 16px;font-size:14px}
.section{padding:32px 0}
.section-header{margin-bottom:24px}
.section-header h2{font-size:clamp(18px,4vw,22px)}
.section-header p{font-size:14px}
.feature-card{padding:20px 16px}
.download-box{padding:24px 16px}
.download-box h3{font-size:18px}
.download-info{gap:12px}
.download-info span{font-size:12px}
.changelog{padding:20px 16px}
.changelog li{font-size:13px;padding:8px 0}
.gallery{gap:10px}
.gallery img{aspect-ratio:9/16}
.content-item{padding:14px 12px;gap:12px}
.content-num{width:32px;height:32px;font-size:12px;flex-shrink:0}
.content-body h4{font-size:14px}
.content-body p{font-size:12px}
.article-card{padding:20px 16px}
.article-card h3{font-size:15px}
.review-card{padding:20px 16px}
.faq-item{padding:16px 0}
.faq-q{font-size:14px;gap:12px}
.faq-a{font-size:13px}
.comments-box{grid-template-columns:1fr;gap:16px}
.comment-form{padding:20px}
.form-row{grid-template-columns:1fr}
.comment-item{padding:14px 12px}
.footer-grid{grid-template-columns:1fr;gap:24px}
.footer-links a{padding:6px 0;font-size:14px}
.footer-bottom{flex-direction:column;text-align:center;gap:8px}
.breadcrumb{font-size:12px;gap:4px}
.about-hero h2{font-size:clamp(22px,5vw,28px)}
.about-hero p{font-size:14px}
.timeline::before{left:32px}
.timeline-item{padding:0 0 28px 52px}
.tl-year{position:relative;display:inline-block;left:auto;top:auto;margin-bottom:8px;font-size:12px}
.timeline-item h3{font-size:15px}
.timeline-item p{font-size:13px}
.topic-card h3{font-size:15px;padding:12px 12px 4px}
.topic-card p{font-size:13px;padding:0 12px 8px}
.topic-card small{padding:0 12px 12px}
.contact-card{padding:20px 16px}
.step-card{padding:16px;gap:14px}
.step-num{width:36px;height:36px;font-size:16px;flex-shrink:0}
.step-card h3{font-size:15px}
.step-card p{font-size:13px}
.container{padding:0 16px}
}
@media(max-width:480px){
.container{padding:0 12px}
.hero-stats{gap:12px}
.hero-stats strong{font-size:18px}
.hero-stats span{font-size:12px}
.download-btns{flex-direction:column}
.download-btn{justify-content:center;padding:14px 20px;font-size:14px}
.gallery{grid-template-columns:repeat(2,1fr);gap:8px}
.features{grid-template-columns:1fr}
.topic-grid{grid-template-columns:1fr}
.articles-grid{grid-template-columns:1fr}
.content-list{gap:12px}
.hero-carousel{width:150px}
.hero-device{width:150px}
nav a{font-size:14px;padding:12px 16px}
.timeline-item{padding:0 0 24px 44px}
.timeline::before{left:24px}
}