*{margin:0;padding:0;box-sizing:border-box}
:root{--accent:#f97316;--accent-rgb:249,115,22;--bg-dark:#0a0e27;--bg-mid:#111540;--text:#e8eaf6;--text-dim:#9ea7c0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:linear-gradient(135deg,var(--bg-dark),#1a1145);color:var(--text);line-height:1.8;min-height:100vh}
a{color:var(--accent);text-decoration:none;transition:opacity .3s}a:hover{opacity:.8}
img{max-width:100%;height:auto;display:block}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:1rem 5%;background:rgba(10,14,39,.85);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);position:sticky;top:0;z-index:1000}
.navbar .logo{font-size:1.3rem;font-weight:800;color:var(--accent);letter-spacing:1px}
.navbar nav a{margin-left:1.8rem;color:var(--text-dim);font-size:.95rem;transition:color .3s}
.navbar nav a:hover,.navbar nav a.active{color:var(--accent)}
.menu-toggle{display:none;background:none;border:none;color:var(--accent);font-size:1.5rem;cursor:pointer}
.hero{text-align:center;padding:4rem 5% 3rem;position:relative}
.hero h1{font-size:2.5rem;font-weight:800;background:linear-gradient(90deg,var(--accent),#fff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1rem;line-height:1.3}
.hero h5{color:var(--text-dim);font-size:1rem;margin-bottom:2rem;max-width:700px;margin-left:auto;margin-right:auto}
.hero-img{max-width:750px;margin:0 auto 2rem;border-radius:16px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.4);border:1px solid rgba(255,255,255,.08)}
.hero-img img{width:100%;display:block}
.hero-btns{display:flex;gap:1rem;justify-content:center;margin-bottom:2.5rem}
.btn-primary{padding:.8rem 2rem;background:var(--accent);color:#0a0e27;border-radius:8px;font-weight:700;border:none;cursor:pointer;font-size:1rem;transition:transform .3s,box-shadow .3s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(var(--accent-rgb),.4)}
.btn-outline{padding:.8rem 2rem;border:1px solid var(--accent);color:var(--accent);border-radius:8px;font-weight:700;cursor:pointer;font-size:1rem;background:transparent;transition:background .3s}
.btn-outline:hover{background:rgba(var(--accent-rgb),.1)}
.search-box{max-width:600px;margin:0 auto 3rem;display:flex;gap:.5rem}
.search-box input{flex:1;padding:.8rem 1.2rem;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:8px;color:var(--text);font-size:.95rem;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:var(--accent)}
.search-box button{padding:.8rem 1.2rem;background:var(--accent);border:none;border-radius:8px;color:#0a0e27;font-weight:700;cursor:pointer}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;padding:0 5% 4rem;max-width:1200px;margin:0 auto}
.feature-card{background:rgba(255,255,255,.04);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:2rem;text-align:center;transition:transform .3s,border-color .3s}
.feature-card:hover{transform:translateY(-5px);border-color:var(--accent)}
.feature-card .icon{font-size:2.5rem;margin-bottom:1rem}
.feature-card h5{color:var(--accent);margin-bottom:.5rem;font-size:1.05rem}
.feature-card p{color:var(--text-dim);font-size:.9rem}
.dashboard{padding:3rem 5%;max-width:1200px;margin:0 auto}
.dashboard h4{text-align:center;color:var(--accent);font-size:1.5rem;margin-bottom:2rem}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}
.stat-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:1.5rem;text-align:center}
.stat-card .number{font-size:2rem;font-weight:800;color:var(--accent);font-family:'Courier New',monospace}
.stat-card .label{color:var(--text-dim);font-size:.85rem;margin-top:.3rem}
.news{padding:3rem 5%;max-width:1200px;margin:0 auto}
.news h4{text-align:center;color:var(--accent);font-size:1.5rem;margin-bottom:2rem}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.news-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:1.5rem;transition:border-color .3s}
.news-card:hover{border-color:var(--accent)}
.news-card h5{color:var(--accent);margin-bottom:.8rem;font-size:1rem;line-height:1.5}
.news-card p{color:var(--text-dim);font-size:.88rem;line-height:1.7}
.news-card .date{color:var(--accent);font-size:.8rem;margin-top:.8rem;opacity:.7}
.video-section{padding:3rem 5%;max-width:1200px;margin:0 auto}
.video-section h4{text-align:center;color:var(--accent);font-size:1.5rem;margin-bottom:2rem}
.video-container{position:relative;max-width:700px;margin:0 auto;border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.video-container img{width:100%;display:block;filter:brightness(.7)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:70px;height:70px;background:rgba(var(--accent-rgb),.85);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .3s}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.1)}
.play-btn::after{content:'';border-style:solid;border-width:12px 0 12px 22px;border-color:transparent transparent transparent #fff;margin-left:4px}
.reviews{padding:3rem 5%;max-width:1200px;margin:0 auto}
.reviews h4{text-align:center;color:var(--accent);font-size:1.5rem;margin-bottom:2rem}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.review-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:1.5rem}
.review-card .stars{color:#ffd740;font-size:1.1rem;margin-bottom:.8rem}
.review-card p{color:var(--text-dim);font-size:.9rem;line-height:1.7;margin-bottom:.8rem}
.review-card .author{color:var(--accent);font-weight:700;font-size:.9rem}
.footer{background:rgba(0,0,0,.3);border-top:1px solid rgba(255,255,255,.06);padding:2rem 5%;margin-top:3rem}
.footer-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:2rem}
.footer-col h6{color:var(--accent);margin-bottom:.8rem;font-size:.95rem}
.footer-col p{color:var(--text-dim);font-size:.85rem;line-height:1.8}
.footer-bottom{max-width:1200px;margin:1.5rem auto 0;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.06);display:flex;justify-content:space-between;color:var(--text-dim);font-size:.8rem;flex-wrap:wrap;gap:.5rem}
.breadcrumb{padding:1.5rem 5%;max-width:1200px;margin:0 auto;color:var(--text-dim);font-size:.9rem}
.breadcrumb a{color:var(--accent)}
.article{padding:0 5% 3rem;max-width:900px;margin:0 auto}
.article h4{color:var(--accent);font-size:1.4rem;margin-bottom:1.5rem}
.article h2{font-size:1.6rem;color:var(--text);margin:2rem 0 1rem;line-height:1.4}
.article h3{font-size:1.2rem;color:var(--accent);margin:1.5rem 0 .8rem}
.article p{color:var(--text-dim);font-size:.95rem;line-height:2;margin-bottom:1rem;text-indent:2em}
.article-tip{background:rgba(var(--accent-rgb),.08);border-left:3px solid var(--accent);padding:1rem 1.5rem;border-radius:0 8px 8px 0;margin-top:2rem}
.article-tip h5{color:var(--accent);margin-bottom:.3rem}
.article-tip p{color:var(--text-dim);font-size:.88rem;text-indent:0}
.page-layout{display:flex;max-width:1200px;margin:0 auto;padding:0 5%;gap:2rem}
.sidebar{width:220px;flex-shrink:0}
.sidebar a{display:block;padding:.8rem 1rem;color:var(--text-dim);border-left:2px solid transparent;margin-bottom:.3rem;font-size:.9rem;transition:all .3s}
.sidebar a:hover,.sidebar a.active{color:var(--accent);border-left-color:var(--accent);background:rgba(var(--accent-rgb),.05)}
.fade-in{opacity:0;transform:translateY(30px);transition:opacity .6s,transform .6s}
.fade-in.visible{opacity:1;transform:translateY(0)}
@media(max-width:768px){
.menu-toggle{display:block}
.navbar nav{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(10,14,39,.95);padding:1rem;flex-direction:column}
.navbar nav.open{display:flex}
.navbar nav a{margin:0;padding:.8rem 0;border-bottom:1px solid rgba(255,255,255,.06)}
.hero h1{font-size:1.6rem}
.features,.news-grid,.review-grid{grid-template-columns:1fr}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.page-layout{flex-direction:column}
.sidebar{width:100%;display:flex;flex-wrap:wrap;gap:.5rem}
.sidebar a{border-left:none;border-bottom:2px solid transparent}
.footer-content{flex-direction:column}
}