:root{--bg:#050912;--panel:#0d1b2d;--panel2:#101f34;--line:#294662;--text:#f4f8ff;--muted:#b8c9dc;--green:#35e0a1;--cyan:#36c9ff;--danger:#ff718b}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:radial-gradient(900px 500px at 8% -8%,rgba(53,224,161,.18),transparent 60%),radial-gradient(800px 500px at 100% 0,rgba(54,201,255,.16),transparent 58%),linear-gradient(180deg,#07111f,#040711);color:var(--text);font:16px/1.6 Inter,system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
h1,h2,h3,p{margin-top:0}h1,h2,h3,h4,p,span,label,b,strong,summary{color:inherit}.shell{width:min(1240px,100%);margin:auto;padding:24px 28px}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:900;white-space:nowrap}.brand i{display:grid;place-items:center;width:40px;height:40px;border-radius:13px;background:linear-gradient(135deg,var(--green),var(--cyan));color:#04131f;font-style:normal;box-shadow:0 8px 25px rgba(53,224,161,.25)}.links{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}.nav a{padding:9px 13px;border:1px solid transparent;border-radius:12px;color:#d9f4ff;text-decoration:none;transition:.2s}.nav a:hover{border-color:var(--line);background:rgba(255,255,255,.06);color:#fff}
.hero{padding:70px 0 44px;text-align:center}.hero h1{font-size:clamp(38px,7vw,72px);line-height:1.08;letter-spacing:-2px;background:linear-gradient(100deg,#fff 20%,#7ee7ff 58%,#72f5be);background-clip:text;-webkit-background-clip:text;color:transparent;-webkit-text-fill-color:transparent}.hero p{max-width:620px;margin:18px auto;color:var(--muted);font-size:18px}.notice{max-width:850px;margin:24px auto 0;padding:13px 18px;border:1px solid rgba(54,201,255,.35);background:rgba(13,50,70,.5);border-radius:15px;color:#e8f8ff}
.grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}.card{min-width:0;border:1px solid var(--line);border-radius:24px;padding:25px;background:linear-gradient(145deg,rgba(17,31,52,.96),rgba(8,17,31,.94));box-shadow:0 22px 70px rgba(0,0,0,.3)}.grid>.card:first-child{border-top:2px solid rgba(53,224,161,.7)}.card h2{margin-bottom:8px;color:#fff}.small,.muted{color:var(--muted);font-size:14px}.networks{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:19px 0}.network{position:relative;overflow:hidden;border:1px solid var(--line);background:#081220;border-radius:17px;padding:16px;cursor:pointer;transition:.2s}.network:hover{transform:translateY(-2px);border-color:rgba(54,201,255,.65)}.network.active{background:linear-gradient(145deg,rgba(18,61,70,.9),rgba(8,26,38,.95));border-color:var(--cyan);box-shadow:0 0 0 1px var(--cyan),0 12px 35px rgba(54,201,255,.13)}.network strong{display:block;color:#fff;font-size:16px}.stock{margin-top:7px;color:#bdebdc;font-size:13px}
label{display:block;margin:15px 0 7px;color:#d7e4f0;font-weight:700}input,select{width:100%;padding:14px 15px;border:1px solid #385975;border-radius:13px;background:#07111f;color:#f7fbff;font:inherit;outline:none;transition:.2s}input::placeholder{color:#8097ad}input:hover,select:hover,input:focus,select:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(54,201,255,.11)}.btn{display:inline-flex;justify-content:center;align-items:center;width:100%;min-height:52px;margin-top:17px;padding:14px 18px;border:0;border-radius:14px;background:linear-gradient(100deg,var(--green),var(--cyan));color:#03131e;font:900 17px inherit;text-decoration:none;cursor:pointer;box-shadow:0 12px 30px rgba(53,224,161,.18);transition:.2s}.btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 16px 38px rgba(53,224,161,.28)}.btn:disabled{opacity:.45;cursor:not-allowed}.err{margin:12px 0;padding:12px;border-radius:12px;background:#421624;border:1px solid #8b304b;color:#ffd1d9}.summary{margin-top:17px;padding:18px;border:1px solid var(--line);border-radius:20px;background:rgba(3,10,20,.72)}.row{display:flex;justify-content:space-between;gap:18px;padding:11px 0;border-bottom:1px dashed rgba(148,163,184,.22)}.row:last-child{border:0}.row b{text-align:right;color:#f6fbff}.total{font-size:23px;color:#83f4c1}.total b{color:#83f4c1}
.section{padding:72px 0 5px}.section-title{text-align:center;margin-bottom:24px}.section-title h2{font-size:32px;color:#fff}.tutorial-launch{text-align:center}.tutorial-preview{display:block;max-width:920px;margin:18px auto 0;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:#07111f;cursor:zoom-in;box-shadow:0 18px 55px rgba(0,0,0,.3)}.tutorial-preview img{display:block;width:100%;height:auto}.tutorial-preview-note{padding:13px 16px;background:#0b1a2c;color:#e6f7ff;font-weight:800}.faq{max-width:850px;margin-left:auto;margin-right:auto}.faq details{margin:11px 0;padding:18px 20px;border:1px solid var(--line);border-radius:16px;background:rgba(17,31,52,.82)}.faq summary{cursor:pointer;font-weight:800;color:#fff}.faq p{margin:12px 0 0}.recent{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.recent .card{padding:17px}.ok{color:#73efb8}.footer{margin-top:70px;padding:30px 0 25px;border-top:1px solid rgba(148,163,184,.14);text-align:center;color:#9fb2c8}
@media(max-width:820px){.shell{padding:16px}.nav{align-items:flex-start;min-height:60px}.links{gap:3px}.nav a{padding:8px 10px;font-size:14px}.hero{padding:45px 0 30px}.grid{grid-template-columns:1fr}.recent{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.nav{display:block}.links{justify-content:flex-start;margin-top:12px}.brand{font-size:18px}.brand i{width:36px;height:36px}.hero h1{font-size:40px;letter-spacing:-1px}.hero p{font-size:16px}.card{padding:19px;border-radius:20px}.networks,.recent{grid-template-columns:1fr}.row{gap:12px}.row b{word-break:break-word}}