:root{--bg:#0b0e14;--bg-soft:#11151f;--bg-card:#151a26;--border:#232a3a;--text:#e8ecf4;--text-dim:#9aa5b8;--text-faint:#67718a;--accent:#7c6cf5;--accent-2:#3ec6b0;--accent-grad:linear-gradient(135deg,#7c6cf5,#3ec6b0);--danger:#ef6b73;--radius:14px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer}.container{max-width:1080px;margin:0 auto;padding:0 24px}.nav{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(11,14,20,.82);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav-inner{justify-content:space-between;height:64px}.nav-inner,.nav-logo{display:flex;align-items:center}.nav-logo{gap:10px;font-weight:700;font-size:18px}.nav-logo .mark{width:30px;height:30px;border-radius:8px;background:var(--accent-grad);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:800;letter-spacing:-.5px}.nav-logo .tld{color:var(--text-faint);font-weight:500}.nav-right{display:flex;align-items:center;gap:16px}.lang-toggle{background:var(--bg-card);color:var(--text-dim);border:1px solid var(--border);border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:600}.lang-toggle:hover{color:var(--text);border-color:var(--accent)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-size:15px;font-weight:600;padding:11px 22px;border:1px solid transparent;transition:opacity .15s ease,transform .1s ease}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent-grad);color:#fff}.btn-primary:hover{opacity:.92}.btn-ghost{background:transparent;color:var(--text-dim);border-color:var(--border)}.btn-ghost:hover{color:var(--text);border-color:var(--accent)}.btn-sm{padding:8px 16px;font-size:14px}.btn-block{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed}.hero{padding:96px 0 72px;text-align:center;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:-40% -20% auto;height:130%;background:radial-gradient(600px 320px at 30% 40%,rgba(124,108,245,.16),transparent 65%),radial-gradient(560px 300px at 72% 55%,rgba(62,198,176,.12),transparent 65%);pointer-events:none}.hero-badge{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--bg-card);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--text-dim);position:relative}.hero-badge 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var(--border)}.section-head{text-align:center;margin-bottom:48px}.section-head .kicker{color:var(--accent);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.12em}.section-head h2{font-size:clamp(26px,4vw,36px);font-weight:800;margin:8px 0 12px;letter-spacing:-.01em}.section-head p{color:var(--text-dim);max-width:560px;margin:0 auto}.grid{display:grid;grid-gap:18px;gap:18px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}@media (max-width:860px){.grid-2,.grid-3{grid-template-columns:1fr}}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:border-color .15s ease,transform .15s ease}.card:hover{border-color:rgba(124,108,245,.5);transform:translateY(-2px)}.card .icon{width:42px;height:42px;border-radius:10px;background:rgba(124,108,245,.14);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px}.card h3{font-size:17px;font-weight:700;margin-bottom:8px}.card p{font-size:14.5px;color:var(--text-dim)}.steps{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:18px;gap:18px}@media (max-width:860px){.steps{grid-template-columns:1fr}}.step{position:relative;padding:26px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-card)}.step .num{position:absolute;top:22px;right:22px;font-size:40px;font-weight:800;color:transparent;-webkit-text-stroke:1px rgba(124,108,245,.35)}.step h3{font-size:16px;font-weight:700;margin-bottom:8px}.step p{font-size:14px;color:var(--text-dim)}.cta-band{border:1px solid var(--border);border-radius:20px;background:radial-gradient(500px 240px at 20% 0,rgba(124,108,245,.15),transparent 70%),radial-gradient(500px 240px at 80% 100%,rgba(62,198,176,.1),transparent 70%),var(--bg-card);padding:64px 32px;text-align:center}.cta-band h2{font-size:clamp(24px,4vw,34px);font-weight:800;margin-bottom:12px}.cta-band 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.label{font-size:11.5px;font-weight:700;letter-spacing:.1em;color:var(--text-faint);text-transform:uppercase;padding:8px 12px}.side a.item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:10px;font-size:14.5px;color:var(--text-dim)}.side a.item.active,.side a.item:hover{background:var(--bg-card);color:var(--text)}.side a.item.active{font-weight:600}.side .spacer{flex:1 1}.main{padding:36px 40px;max-width:960px}@media (max-width:860px){.main{padding:24px 20px}}.main h1{font-size:24px;font-weight:800;margin-bottom:4px}.main .desc{color:var(--text-dim);font-size:14px;margin-bottom:28px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:16px;gap:16px;margin-bottom:28px}.stat{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px}.stat .k{font-size:13px;color:var(--text-faint);margin-bottom:6px}.stat .v{font-size:26px;font-weight:800}.stat 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