:root{--bg:#0a0e14;--bg-elevated:#0d1117;--bg-card:rgba(255,255,255,0.03);--bg-card-hover:rgba(255,255,255,0.05);--border:rgba(255,255,255,0.08);--border-strong:rgba(255,255,255,0.14);--text:#e6edf3;--text-muted:#8b98a9;--accent-from:#4f8cff;--accent-to:#22d3ee;--accent:#4f8cff;--accent-gradient:linear-gradient(135deg,#4f8cff,#22d3ee);--code-bg:#0d1117;--code-border:rgba(255,255,255,0.1);--radius:12px;--radius-sm:8px;--container-max:1120px;--navbar-height:64px;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;--font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono","Courier New",monospace}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh}a{color:var(--accent)}a,a:hover{text-decoration:none}img,svg,video{display:block;max-width:100%}ol,ul{list-style:none}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.25;color:var(--text)}.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}.section{padding:88px 0}.section-title{font-size:32px;letter-spacing:-.02em;text-align:center;margin-bottom:12px}.section-subtitle{font-size:17px;color:var(--text-muted);text-align:center;max-width:720px;margin:0 auto 48px}.navbar{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(10,14,20,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.navbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px}.navbar-logo{font-size:20px;font-weight:800;letter-spacing:.02em;background:var(--accent-gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;white-space:nowrap}.navbar-links{display:flex;align-items:center;gap:6px;overflow-x:auto;-webkit-overflow-scrolling:touch}.navbar-link{display:inline-flex;align-items:center;padding:7px 14px;border-radius:999px;font-size:14.5px;color:var(--text-muted);white-space:nowrap;transition:color .15s ease,background .15s ease}.navbar-link:hover{color:var(--text);background:rgba(255,255,255,.06)}.navbar-link.active{color:var(--text);background:rgba(79,140,255,.16)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:10px;font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;border:1px solid transparent;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease,background .15s ease}.btn-primary{background:var(--accent-gradient);color:#0a0e14}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(79,140,255,.35)}.btn-secondary{background:transparent;color:var(--text);border-color:var(--border-strong)}.btn-secondary:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.hero{padding:128px 0 104px;text-align:center;background:radial-gradient(720px 320px at 50% -80px,rgba(79,140,255,.18),transparent 70%),radial-gradient(560px 260px at 70% 40px,rgba(34,211,238,.1),transparent 70%)}.hero-title{font-size:56px;font-weight:800;letter-spacing:-.03em;background:var(--accent-gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;margin-bottom:20px}.hero-subtitle{font-size:19px;color:var(--text-muted);max-width:680px;margin:0 auto 40px}.hero-actions{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}.grid{display:grid;grid-gap:20px;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:transform .18s ease,border-color .18s ease,background .18s ease,box-shadow .18s ease}.card:hover{transform:translateY(-3px);background:var(--bg-card-hover);border-color:var(--border-strong);box-shadow:0 12px 32px rgba(0,0,0,.35)}.card-title{font-size:18px;font-weight:700;margin-bottom:10px}.card-text{font-size:14.5px;color:var(--text-muted)}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.02em;color:var(--accent);background:rgba(79,140,255,.12);border:1px solid rgba(79,140,255,.28)}.code-block{background:var(--code-bg);border:1px solid var(--code-border);border-radius:var(--radius-sm);padding:16px 20px;font-size:13.5px;line-height:1.7;color:var(--text);overflow-x:auto;white-space:pre}.code-block,code{font-family:var(--font-mono)}code{font-size:.88em;color:var(--accent-to);background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.2);border-radius:5px;padding:1px 6px}.code-block code{background:transparent;border:none;padding:0;color:inherit}.table{width:100%;border-collapse:collapse;font-size:14.5px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.table td,.table th{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}.table th{font-weight:600;color:var(--text);background:rgba(255,255,255,.04)}.table td{color:var(--text-muted)}.table tr:last-child td{border-bottom:none}.footer{border-top:1px solid var(--border);padding:40px 0 48px;text-align:center;color:var(--text-muted);font-size:14px}.footer-links{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;margin-top:12px}.footer-link{color:var(--text-muted);font-size:14px;transition:color .15s ease}.footer-link:hover{color:var(--accent)}.steps{display:flex;flex-direction:column;gap:20px;max-width:720px;margin:0 auto}.step{display:flex;gap:18px;align-items:flex-start}.step:before{counter-increment:step;content:counter(step);flex:none;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;color:#0a0e14;background:var(--accent-gradient)}.steps{counter-reset:step}.step-title{font-size:16.5px;font-weight:700;margin-bottom:4px}.step-text{font-size:14.5px;color:var(--text-muted)}@media (max-width:768px){.section{padding:56px 0}.hero{padding:88px 0 72px}.hero-title{font-size:38px}.hero-subtitle{font-size:16.5px}.section-title{font-size:26px}.navbar-inner{flex-wrap:wrap;row-gap:4px;padding-top:12px;padding-bottom:12px}.navbar-links{width:100%}.grid-2,.grid-3{grid-template-columns:1fr}.hero-actions .btn{width:100%}}