:root{--bg:#0b0f14;--panel:#ffffff0f;--panel2:#ffffff17;--text:#ffffffeb;--muted:#ffffffb3;--border:#ffffff24;--accent:#00d4ff;--danger:#e53935;--danger-soft:#e5393524;--shadow:0 12px 40px #00000059}*{box-sizing:border-box}html,body{height:100%}body{background:radial-gradient(1200px 700px at 30% 20%,#00d4ff1f,transparent 55%),radial-gradient(900px 600px at 70% 10%,#00d4ff14,transparent 60%),var(--bg);color:var(--text);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Arial,Malgun Gothic,sans-serif}a{color:inherit;text-decoration:none}.container{max-width:1080px;margin:0 auto;padding:28px 18px}.card{border:1px solid var(--border);background:var(--panel);border-radius:16px;padding:18px}.grid{gap:14px;display:grid}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}@media (max-width:900px){.grid-3,.grid-2{grid-template-columns:1fr}}.badge{border:1px solid var(--border);color:var(--muted);background:#00000040;border-radius:999px;align-items:center;gap:8px;padding:6px 10px;font-size:12px;display:inline-flex}.h1{margin:0 0 10px;font-size:36px;line-height:1.15}.h2{margin:0 0 10px;font-size:20px}.p{color:var(--muted);margin:0;line-height:1.7}.btn{border:1px solid var(--border);cursor:pointer;background:#00000059;border-radius:12px;justify-content:center;align-items:center;padding:10px 14px;display:inline-flex}.btn:hover{border-color:#00d4ff80}.hr{background:var(--border);height:1px;margin:14px 0}.nav{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);background:#0b0f14b8;position:sticky;top:0}.nav-inner{justify-content:space-between;align-items:center;gap:14px;max-width:1080px;margin:0 auto;padding:14px 18px;display:flex}.nav-links{color:var(--muted);flex-wrap:wrap;gap:14px;font-size:14px;display:flex}.nav-links a:hover,.nav-links button:hover{color:var(--text)}.nav-link{appearance:none;color:inherit;font:inherit;cursor:pointer;background:0 0;border:0;padding:0}.logo{align-items:center;display:inline-flex}.lang-toggle{border-left:1px solid var(--border);align-items:center;gap:10px;padding-left:10px;display:inline-flex}.lang{color:#ffffffb8;letter-spacing:.2px;padding:2px 0;font-weight:600;line-height:1;text-decoration:none}.lang.active{color:var(--danger);border-bottom:2px solid var(--danger);font-weight:800}.lang:hover{color:#ffffffeb}@media (max-width:520px){.lang-toggle{border-left:0;padding-left:0}}.footer{color:var(--muted);border-top:1px solid var(--border);background:#0000001f;padding:28px 18px;font-size:12px}.footer-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;max-width:1080px;margin:0 auto;display:grid}@media (max-width:900px){.footer-grid{grid-template-columns:1fr}}.footer-card{border:1px solid var(--border);background:var(--panel);border-radius:16px;padding:16px}.footer-card h4{color:var(--text);letter-spacing:.2px;margin:0 0 10px;font-size:14px}.footer-card p{color:var(--muted);margin:0;line-height:1.7}.footer-card ul{margin:0;padding:0;list-style:none}.footer-card li{color:var(--muted);margin:0 0 6px}.footer-bottom{border-top:1px solid var(--border);text-align:center;color:#ffffff8c;max-width:1080px;margin:18px auto 0;padding-top:14px;font-size:12px}.modal-overlay{z-index:9999;background:#0000008c;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{border:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);width:min(560px,100%);box-shadow:var(--shadow);background:#0b0f14eb;border-radius:16px;padding:18px}.modal h3{color:var(--text);letter-spacing:.2px;margin:0 0 12px;font-size:16px}.folder-tree{border:1px solid var(--border);color:#ffffffe0;background:#00000059;border-radius:12px;margin:0;padding:12px;font-size:13px;line-height:1.55;overflow-x:auto}.modal-desc{color:var(--muted);margin:12px 0 0;font-size:13px;line-height:1.7}.modal-warning{background:var(--danger-soft);color:#ffd2d2f2;border:1px solid #e539358c;border-radius:12px;margin-top:14px;padding:12px;font-size:13px;line-height:1.6}.modal-close{color:#fff;cursor:pointer;background:#e53935eb;border:1px solid #e5393573;border-radius:12px;width:100%;margin-top:14px;padding:11px 14px;font-weight:800}.modal-close:hover{background:#e53935}@media (max-width:420px){.modal{padding:14px}}.kv{border:1px solid var(--border);background:linear-gradient(135deg,#00d4ff1a,#ffffff08);border-radius:18px;padding:22px}.nav-left{align-items:center;display:flex}.brand{align-items:center;gap:10px;min-width:220px;display:inline-flex}.brand-mark{justify-content:center;align-items:center;width:44px;height:44px;display:inline-flex}.brand-text{flex-direction:column;line-height:1.1;display:flex}.brand-title{letter-spacing:.4px;color:var(--text);font-size:14px;font-weight:800}.brand-sub{color:var(--muted);margin-top:3px;font-size:12px}.nav-inner{flex-wrap:wrap}.nav-links{align-items:center}@media (max-width:760px){.nav-inner{gap:10px}.nav-links{justify-content:flex-start;width:100%}.lang-toggle{margin-left:auto}}