:root{--bg:#0b0d12;--card:#11141a;--muted:#8b93a3;--text:#e6e8ec;--primary:#2f80ff;--primary-600:#1f6ae0;--primary-50:#e8f1ff;--accent:#22c55e;--border:#1d2230}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:"Noto Sans SC",system-ui,-apple-system,Segoe UI,Roboto,Ubuntu;line-height:1.6;color:var(--text);background:linear-gradient(180deg,#0a0c10,#0d1117 40%,#0a0c10)}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,12,16,.7);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{color:var(--text);text-decoration:none;font-weight:700;letter-spacing:.04em}
.nav a{color:var(--muted);text-decoration:none;margin-left:18px}
.nav a:hover{color:var(--text)}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;text-decoration:none;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-600)}
.btn-outline{border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:#fff}
.btn-light{background:#161a22;color:var(--text);border:1px solid var(--border)}
.hero{padding:72px 0}
.hero-inner{display:grid;grid-template-columns:1fr;gap:16px;text-align:center}
.hero h1{margin:0;font-size:40px}
.hero p{margin:0;color:var(--muted)}
.hero-cta{margin-top:16px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.section{padding:56px 0}
.section-alt{background:linear-gradient(180deg,#0c1016,#0a0c10)}
.section-head h2{margin:0;font-size:28px}
.section-head p{margin:8px 0 24px;color:var(--muted)}
.filters{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:8px 12px;border-radius:999px;border:1px solid var(--border);color:var(--muted);cursor:pointer}
.chip.active{color:#fff;background:var(--primary);border-color:transparent}
#search{width:280px;max-width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#0f131a;color:var(--text)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:960px){.grid,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.card-header{padding:16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}
.avatar{width:40px;height:40px;border-radius:10px;background:var(--primary-50);color:#1b3b77;display:flex;align-items:center;justify-content:center;font-weight:700}
.card-title{font-size:16px;font-weight:600;margin:0}
.badge{font-size:12px;color:#9bb8ff;background:#112447;border:1px solid #1b3b77;border-radius:999px;padding:4px 8px}
.card-body{padding:16px;color:var(--muted);flex:1}
.tech{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.tech span{border:1px dashed var(--border);border-radius:8px;padding:6px 8px;color:#b7c0d1;font-size:12px}
.card-footer{padding:12px 16px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.icon-btn{border:none;background:#161a22;border:1px solid var(--border);color:var(--text);border-radius:10px;padding:8px 12px;cursor:pointer}
.tile{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.tile h3{margin:0 0 6px;font-size:16px}
.about{display:grid;grid-template-columns:2fr 1fr;gap:16px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.stats .num{font-size:24px;font-weight:700;display:block}
.contact-form{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.contact-form input,.contact-form textarea{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#0f131a;color:var(--text)}
.form-actions{display:flex;gap:12px}
.site-footer{border-top:1px solid var(--border);padding:24px 0}
.footer-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center}
.footer-links a{color:var(--muted);text-decoration:none;margin-right:14px}
.footer-copy{color:var(--muted);text-align:right}
dialog{background:var(--card);border:1px solid var(--border);border-radius:16px;color:var(--text);max-width:720px;width:calc(100% - 32px)}
::backdrop{background:rgba(0,0,0,.6)}
.dialog-content{position:relative;padding:16px}
#dialog-close{position:absolute;right:12px;top:12px}