.site-nav{position:relative;z-index:100;height:70px;background:#fff;border-bottom:1px solid #eef1f6;color:#142e52;font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
.site-nav *{box-sizing:border-box}
.site-nav a{text-decoration:none}
.site-nav .site-nav-inner{max-width:1220px;height:100%;margin:auto;padding:0 28px;display:flex;align-items:center;gap:clamp(12px,2vw,24px)}
.site-nav .brand{display:inline-flex;flex:none;align-items:center;gap:9px;margin:0;color:#142e52;font-size:20px;font-weight:800;white-space:nowrap}
.site-nav .brand > span:first-of-type{border:0;padding:0;margin:0;color:inherit;font-size:inherit;font-weight:inherit}
.site-nav .brand-logo{width:31px;height:31px;object-fit:contain;border-radius:10px}
.site-nav .brand-caption{font-size:11px;color:#8795a9;border-left:1px solid #d9e1eb;padding-left:11px;margin-left:3px;font-weight:400}
.site-nav nav{display:flex;flex:1;min-width:0;align-items:center;justify-content:flex-end;gap:clamp(8px,1.2vw,16px)}
.site-nav .nav-link{display:flex;align-items:center;height:44px;padding:0 12px;border:0;border-radius:10px;background:none;color:#566780;font-size:18px;font-weight:400;letter-spacing:.01em;white-space:nowrap;transition:color .2s,background-color .2s,transform .2s}
.site-nav .nav-link:hover,.site-nav .nav-link[aria-current="page"],.site-nav details[open]>summary,.site-nav details:focus-within>summary{color:#128bed;border-bottom-color:transparent;background:none}
.site-nav .nav-link:hover{background:none;color:#128bed;transform:translateY(-1px)}
.site-nav details{position:relative;flex:none}
.site-nav details summary{list-style:none;cursor:pointer}
.site-nav details summary::-webkit-details-marker{display:none}
.site-nav .blockchain-menu,.site-nav .developer-menu{display:none;position:absolute;top:100%;z-index:101;border:1px solid #e7ebf1;border-radius:0 0 12px 12px;background:#fff;box-shadow:0 18px 40px #172f5130}
.site-nav details[open] .blockchain-menu{display:grid}
.site-nav .blockchain-menu{left:-18px;grid-template-columns:repeat(2,minmax(108px,1fr));gap:7px;width:268px;padding:14px}
.site-nav .blockchain-menu a{padding:12px 16px;border-radius:8px;color:#25364a;font-size:13px;font-weight:600}
.site-nav .blockchain-menu a:hover,.site-nav .blockchain-menu a:focus-visible{background:#eaf4ff;color:#128bed}
.site-nav details[open] .developer-menu{display:grid}
.site-nav .developer-menu{left:-24px;grid-template-columns:minmax(0,1.05fr) minmax(140px,.85fr);gap:18px;width:454px;min-height:246px;padding:12px;color:#25364a}
.site-nav .developer-feature{display:flex;flex-direction:column;min-width:0;padding:18px 17px 11px;border-radius:9px;background:#f5f7fa;color:#16283e}
.site-nav .developer-feature:hover,.site-nav .developer-feature:focus-visible{background:#ebf3ff}
.site-nav .developer-feature-title{display:flex;align-items:center;gap:7px;font-size:15px}
.site-nav .developer-badge{border:1px solid #8c9baa;border-radius:4px;padding:1px 5px;font-size:11px;font-weight:700}
.site-nav .developer-feature-description{margin-top:10px;font-size:12px;line-height:1.55}
.site-nav .developer-feature-bottom{display:flex;align-items:end;justify-content:space-between;margin-top:auto;color:#cb6169;font-size:13px;font-weight:700}
.site-nav .developer-feature-bottom svg{width:72px;height:62px;color:#24354b}
.site-nav .developer-resources{display:flex;flex-direction:column;padding:1px 3px 0;font-size:12px}
.site-nav .developer-resources span,.site-nav .developer-resources a{padding:15px 8px;border-bottom:1px solid #f0f2f6}
.site-nav .developer-resources a{color:#25364a;font-weight:600}
.site-nav .developer-resources a:hover,.site-nav .developer-resources a:focus-visible{color:#128bed;background:#f3f8ff}
.site-nav .developer-resources span:last-child,.site-nav .developer-resources a:last-child{border-bottom:0}
.site-nav .developer-resources .developer-resources-heading{color:#8c9bab}
.site-nav .nav-vip{display:grid;place-items:center;flex:none;min-width:62px;min-height:44px;margin:0 2px;color:#975214;outline-offset:4px}
.site-nav .nav-vip-badge{display:flex;align-items:center;justify-content:center;gap:3px;width:62px;height:38px;padding:3px 4px;border-radius:7px;background:linear-gradient(145deg,#fff1dc,#ffe2bd);box-shadow:0 3px 9px #c9733126;animation:site-vip-breathe 2.4s ease-in-out infinite;transform-origin:center}
.site-nav .nav-vip-badge svg{width:22px;height:22px;flex:none;filter:drop-shadow(0 1px 1px #a45d2940)}
.site-nav .nav-vip-label{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;font-weight:800;line-height:1.05;white-space:nowrap}
.site-nav .nav-vip-label span{display:block;max-width:34px;overflow:hidden;text-overflow:ellipsis}
.site-nav .nav-vip:hover .nav-vip-badge,.site-nav .nav-vip:focus-visible .nav-vip-badge{animation-play-state:paused;transform:scale(1.12);box-shadow:0 5px 14px #c9733145}
@keyframes site-vip-breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.09)}}
@media(prefers-reduced-motion:reduce){.site-nav .nav-vip-badge{animation:none}.site-nav .nav-vip:hover .nav-vip-badge,.site-nav .nav-vip:focus-visible .nav-vip-badge{transform:none}}
.site-nav .profile{display:inline-flex;align-items:center;justify-content:center;gap:8px;flex:none;min-height:40px;padding:8px 14px;border:0;border-radius:7px;background:#128bed;color:#fff;font-size:13px;white-space:nowrap;box-shadow:0 6px 16px #1269e833;cursor:pointer;transition:background .2s,box-shadow .2s,transform .2s}
.site-nav .profile:hover{background:#095acb;box-shadow:0 8px 20px #1269e844;transform:translateY(-1px)}
.site-nav .profile.is-authenticated{background:#fff;color:#203c60;border:1px solid #dce7f4;box-shadow:0 5px 16px #173d7314}
.site-nav .nav-avatar{display:grid;place-items:center;width:25px;height:25px;overflow:hidden;border-radius:50%;background:#e7f1ff;color:#1269e8;font-size:12px;font-weight:800}
.site-nav .nav-avatar img{width:100%;height:100%;object-fit:cover}
.site-nav .nav-profile-name{max-width:112px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.site-nav .site-nav-inner .language-control{margin-left:10px}
.site-nav a:focus-visible,.site-nav button:focus-visible,.site-nav summary:focus-visible{outline:3px solid #128bed66;outline-offset:2px}
@media(max-width:720px){.site-nav{height:auto}.site-nav .site-nav-inner{flex-wrap:wrap;gap:12px;padding:12px 16px}.site-nav .brand{margin-right:auto;font-size:17px}.site-nav .brand-caption{display:none}.site-nav nav{order:3;width:100%;flex:1 0 100%;flex-wrap:wrap;justify-content:flex-end;gap:8px 18px}.site-nav .nav-link{height:35px;padding:0 9px;font-size:15px}.site-nav details{position:static}.site-nav .blockchain-menu,.site-nav .developer-menu{top:100%;left:12px;right:12px;width:auto;max-height:calc(100dvh - 130px);overflow:auto}.site-nav .blockchain-menu{grid-template-columns:repeat(2,minmax(0,1fr))}.site-nav .developer-menu{grid-template-columns:minmax(0,1fr) minmax(110px,.7fr);gap:8px;padding:8px}.site-nav .developer-feature{padding:12px}.site-nav .developer-feature-description{font-size:11px}.site-nav .developer-feature-bottom svg{width:48px;height:46px}.site-nav .developer-resources span{padding:12px 5px;font-size:11px}.site-nav .profile{padding:8px 10px;font-size:12px}}