*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0f1117;--surface:#181b23;--surface2:#20242e;--text:#f5f7fa;--muted:#9ca3af;--border:#2b303b;--accent:#e11d48;--max:1160px}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{color:inherit;text-decoration:none}.container{width:min(var(--max),calc(100% - 32px));margin:auto}.header{position:sticky;top:0;z-index:10;background:rgba(15,17,23,.95);border-bottom:1px solid var(--border);backdrop-filter:blur(10px)}.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between}.logo{font-size:1.45rem;font-weight:800}.logo span{color:var(--accent)}.nav-links{display:flex;gap:25px}.nav-links a{color:var(--muted)}.nav-links a:hover,.nav-links .active{color:var(--text)}.menu{display:none;border:0;background:none;color:var(--text);font-size:1.5rem}.hero{padding:90px 0;background:radial-gradient(circle at 85% 10%,rgba(225,29,72,.16),transparent 38%)}.hero h1{font-size:clamp(2.4rem,6vw,4.7rem);line-height:1.08;max-width:850px;margin-bottom:20px}.hero p{color:var(--muted);max-width:700px}.buttons{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:8px;font-weight:700}.primary{background:var(--accent)}.secondary{background:var(--surface);border:1px solid var(--border)}.section{padding:70px 0}.section h2{font-size:2rem;margin-bottom:8px}.intro{color:var(--muted);margin-bottom:28px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card{padding:24px;border:1px solid var(--border);background:var(--surface);border-radius:12px;transition:.2s}.card:hover{transform:translateY(-3px);border-color:#4b5563}.card h3{margin:8px 0 4px}.card p{color:var(--muted);font-size:.92rem}.icon{font-size:1.7rem}.search{display:flex;max-width:700px}.search input{flex:1;height:50px;padding:0 16px;border:1px solid var(--border);border-right:0;border-radius:8px 0 0 8px;background:var(--surface);color:var(--text);font-size:1rem}.search button{width:95px;border:0;border-radius:0 8px 8px 0;background:var(--accent);color:white;font-weight:700}.content{max-width:820px}.content h1{font-size:2.6rem;line-height:1.2;margin-bottom:14px}.content p{color:var(--muted);margin:12px 0}.footer{border-top:1px solid var(--border);padding:38px 0;background:#0b0d12}.footer-row{display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:.85rem}.footer-links{display:flex;gap:20px}@media(max-width:800px){.grid{grid-template-columns:repeat(2,1fr)}.menu{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg);padding:8px 16px 16px;flex-direction:column;gap:0;border-bottom:1px solid var(--border)}.nav-links.open{display:flex}.nav-links a{padding:12px 0;border-bottom:1px solid var(--border)}}@media(max-width:520px){.container{width:calc(100% - 22px)}.grid{grid-template-columns:1fr}.hero{padding:65px 0}.hero h1{font-size:2.6rem}.buttons,.footer-row{flex-direction:column}.btn{width:100%}}