:root{--bg:#070b18;--bg-soft:#0c1326;--card:rgba(255,255,255,.045);--card-strong:rgba(255,255,255,.075);--line:rgba(255,255,255,.1);--txt:#e9edf9;--muted:#98a4c2;--brand:#4f7cff;--brand2:#8b5cf6;--ok:#22c55e;--warn:#f59e0b;--radius:16px;--max:1160px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(1100px 520px at 12% -8%,rgba(79,124,255,.22),transparent 60%),radial-gradient(900px 480px at 92% 4%,rgba(139,92,246,.18),transparent 62%),var(--bg);color:var(--txt);font-family:"Segoe UI","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:#9db4ff;text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%}.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}.site-header{position:sticky;top:0;z-index:50;background:rgba(7,11,24,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;height:66px}.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:#fff}.logo:hover{text-decoration:none}.logo-mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;font-size:14px;font-weight:800;color:#fff}.nav-links{display:flex;gap:26px;align-items:center;font-size:15px}.nav-links a{color:var(--muted)}.nav-links a:hover,.nav-links a.is-active{color:#fff;text-decoration:none}.nav .btn{padding:9px 18px;font-size:14px}.hero{padding:76px 0 56px}.hero-chip{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:13px;background:var(--card-strong);border:1px solid var(--line);color:#cdd7f5}h1{font-size:clamp(30px,4.4vw,46px);line-height:1.28;margin:20px 0 16px;letter-spacing:.2px;background:linear-gradient(120deg,#ffffff 20%,#b9c6ff 90%);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p.lead{font-size:17px;color:var(--muted);max-width:760px;margin:0 0 26px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}.badges{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--muted)}.badges span::before{content:"▸ ";color:var(--brand)}.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid var(--line);background:var(--card-strong);color:var(--txt);transition:transform .16s ease,box-shadow .16s ease,background .16s ease}.btn:hover{text-decoration:none;transform:translateY(-1px);background:rgba(255,255,255,.12)}.btn-primary{border:none;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 12px 30px rgba(79,124,255,.32)}.btn-primary:hover{box-shadow:0 16px 38px rgba(79,124,255,.42)}.btn-sm{padding:9px 16px;font-size:14px}.section{padding:52px 0;border-top:1px solid var(--line)}.section:first-of-type{border-top:none}.section h2{font-size:clamp(22px,2.6vw,30px);line-height:1.4;margin:0 0 14px;color:#fff}.section > .container > p.lead{margin:0 0 28px;max-width:860px;color:#c3cdea;font-size:16px}.eyebrow{color:var(--brand);font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-bottom:8px}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:border-color .16s ease,transform .16s ease,background .16s ease}.card:hover{border-color:rgba(139,92,246,.5);transform:translateY(-2px);background:var(--card-strong)}.card h3{margin:0 0 10px;font-size:17px;color:#fff}.card p{margin:0;color:var(--muted);font-size:15px}.card .meta{margin-top:12px;font-size:13px;color:#7f8db0}.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.dl-card{background:linear-gradient(180deg,rgba(79,124,255,.12),rgba(255,255,255,.03));border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:left}.dl-card.is-mobile{background:var(--card)}.dl-card h3{margin:0 0 6px;font-size:18px;color:#fff}.dl-card .sub{color:var(--muted);font-size:14px;margin:0 0 16px}.dl-card ul{list-style:none;margin:0 0 18px;padding:0;font-size:14px;color:var(--muted)}.dl-card li{display:flex;justify-content:space-between;gap:12px;padding:5px 0;border-bottom:1px dashed rgba(255,255,255,.07)}.dl-card li:last-child{border-bottom:none}.dl-card li b{color:#dbe3fb;font-weight:600}.dl-card .btn{width:100%;justify-content:center}.hash{margin-top:14px;font-size:12px;color:#7f8db0;word-break:break-all}.hash code{color:#9db4ff}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px}th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}thead th{background:rgba(255,255,255,.05);color:#fff;font-weight:600}tbody tr:last-child td{border-bottom:none}tbody td:first-child{color:#dbe3fb;font-weight:600}td.pending{color:#7f8db0}.note{font-size:13px;color:#7f8db0;margin-top:12px}.review{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.review blockquote{margin:0 0 14px;font-size:15px;color:#d6dffa}.review .source{font-size:13px;color:#7f8db0}.review .tag{display:inline-block;margin-bottom:10px;font-size:12px;padding:3px 10px;border-radius:999px;border:1px solid var(--line);color:var(--muted)}.tag-open{color:var(--warn);border-color:rgba(245,158,11,.4)}.tag-closed{color:var(--ok);border-color:rgba(34,197,94,.4)}.faq{display:grid;gap:12px}.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:0 20px}.faq details[open]{background:var(--card-strong)}.faq summary{cursor:pointer;padding:18px 0;font-size:16px;font-weight:600;color:#fff;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"+";float:right;color:var(--brand);font-size:20px;line-height:1}.faq details[open] summary::after{content:"–"}.faq p{margin:0 0 18px;color:var(--muted);font-size:15px}.verify{list-style:none;margin:0;padding:0;display:grid;gap:14px;grid-template-columns:repeat(2,1fr)}.verify li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px}.verify b{display:block;color:#fff;margin-bottom:6px}.verify span{color:var(--muted);font-size:14px}.tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}.tag-pill{padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--card);font-size:13.5px;color:var(--muted)}.tag-pill:hover{color:#fff;text-decoration:none;border-color:rgba(139,92,246,.5)}.news-layout{display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:start}.article-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.article-card:hover{text-decoration:none;border-color:rgba(139,92,246,.5);transform:translateY(-2px)}.article-card h3{margin:10px 0 10px;font-size:17px;color:#fff}.article-card p{margin:0;color:var(--muted);font-size:14.5px}.article-card .label{font-size:12.5px;color:var(--brand)}.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:sticky;top:86px}.side-card h3{margin:0 0 14px;font-size:16px;color:#fff}.side-card ol{margin:0;padding-left:20px;color:var(--muted);font-size:14.5px}.side-card li{margin-bottom:10px}.steps{counter-reset:s;display:grid;gap:16px;grid-template-columns:repeat(4,1fr)}.steps li{list-style:none;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;position:relative}.steps li::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:700;font-size:14px;margin-bottom:10px}.steps b{display:block;color:#fff;margin-bottom:6px}.steps span{color:var(--muted);font-size:14px}.callout{border:1px solid rgba(79,124,255,.35);background:rgba(79,124,255,.1);border-radius:14px;padding:18px 22px;font-size:15px;color:#ccd7f7;margin-top:22px}.callout b{color:#fff}.site-footer{border-top:1px solid var(--line);padding:40px 0 56px;margin-top:20px;color:#7f8db0;font-size:13.5px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}.site-footer h4{color:#fff;font-size:15px;margin:0 0 12px}.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{margin-bottom:8px}.footer-bottom{margin-top:30px;padding-top:18px;border-top:1px solid var(--line)}.page-updated{color:#6b7280;font-variant-numeric:tabular-nums}@media (max-width:980px){.grid-3,.grid-4,.dl-grid,.steps,.verify{grid-template-columns:repeat(2,1fr)}.news-layout{grid-template-columns:1fr}.side-card{position:static}.footer-grid{grid-template-columns:1fr}.nav-links{display:none}}@media (max-width:640px){.grid-2,.grid-3,.grid-4,.dl-grid,.steps,.verify{grid-template-columns:1fr}.hero{padding:48px 0 36px}}