:root{--bg:#07080f;--bg-soft:#0f1220;--card:rgba(18,22,38,.72);--card-border:hsla(0,0%,100%,.08);--text:#eef1ff;--text-muted:#9aa3c7;--accent:#6c5cff;--accent-2:#22d3ee;--accent-3:#f472b6;--success:#34d399;--shadow:0 24px 80px rgba(0,0,0,.45);--radius:20px;--max:1120px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}.bg-glow{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}.bg-glow span{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;animation:float 18s ease-in-out infinite}.bg-glow span:first-child{width:520px;height:520px;background:#4338ca;top:-120px;left:-80px}.bg-glow span:nth-child(2){width:420px;height:420px;background:#0891b2;top:20%;right:-120px;animation-delay:-6s}.bg-glow span:nth-child(3){width:360px;height:360px;background:#be185d;bottom:-80px;left:35%;animation-delay:-12s}@keyframes float{0%,to{transform:translateY(0) scale(1)}50%{transform:translateY(-24px) scale(1.05)}}.wrap{width:min(var(--max),calc(100% - 40px));margin:0 auto}header{position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:rgba(7,8,15,.72);border-bottom:1px solid var(--card-border)}.nav{justify-content:space-between;padding:16px 0;gap:16px}.brand,.nav{display:flex;align-items:center}.brand{gap:12px;text-decoration:none;color:var(--text);font-weight:700;font-size:1.05rem;letter-spacing:.02em}.brand-icon{width:40px;height:40px;border-radius:12px;overflow:hidden;flex-shrink:0;box-shadow:0 8px 24px rgba(108,92,255,.35)}.brand-icon img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;display:block}.nav-links{display:flex;align-items:center;gap:28px;list-style:none}.nav-links a{color:var(--text-muted);text-decoration:none;font-size:.95rem;transition:color .2s}.nav-links a:hover{color:var(--text)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 28px;border-radius:999px;border:none;cursor:pointer;font-size:1rem;font-weight:600;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s}.btn:hover{transform:translateY(-2px)}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--accent) 0,#8b5cf6 50%,var(--accent-2) 100%);box-shadow:0 12px 32px rgba(108,92,255,.35)}.btn-primary:hover{box-shadow:0 16px 40px rgba(108,92,255,.48)}.btn-ghost{color:var(--text);background:hsla(0,0%,100%,.06);border:1px solid var(--card-border)}.btn-sm{padding:10px 20px;font-size:.92rem}.hero{padding:88px 0 72px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px}.badge,.hero{align-items:center}.badge{display:inline-flex;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.28);color:#86efac;font-size:.85rem;margin-bottom:20px}.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 12px var(--success)}h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.12;letter-spacing:-.03em;margin-bottom:20px}h1 span{background:linear-gradient(135deg,#fff,#c4b5fd 45%,#67e8f9);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-desc{color:var(--text-muted);font-size:1.12rem;max-width:540px;margin-bottom:32px}.hero-actions{gap:14px;margin-bottom:28px}.hero-actions,.hero-meta{display:flex;flex-wrap:wrap}.hero-meta{gap:20px;color:var(--text-muted);font-size:.92rem}.hero-meta strong{color:var(--text);display:block;font-size:1rem}.hero-meta-highlight{border-radius:14px}.hero-meta-highlight strong{font-size:1.08rem;background:linear-gradient(135deg,#e9d5ff,#67e8f9);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-meta-highlight span{color:#c4b5fd;font-weight:600}.preview{position:relative}.preview-card{background:var(--card);border:1px solid var(--card-border);border-radius:24px;padding:24px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.preview-top{display:flex;gap:8px;margin-bottom:18px}.dot{width:12px;height:12px;border-radius:50%}.dot.red{background:#f87171}.dot.yellow{background:#fbbf24}.dot.green{background:#34d399}.preview-body{border-radius:16px;background:linear-gradient(180deg,#12182b,#0b1020);border:1px solid hsla(0,0%,100%,.06);padding:20px;min-height:320px;font-family:Cascadia Code,Consolas,monospace;font-size:.82rem;line-height:1.7;overflow:hidden}.code-line{color:#94a3b8}.code-tag{color:#67e8f9}.code-attr{color:#c4b5fd}.code-str{color:#86efac}.code-comment{color:#64748b}.preview-float{position:absolute;right:-12px;bottom:-16px;padding:14px 18px;border-radius:16px;background:rgba(15,18,32,.92);border:1px solid var(--card-border);box-shadow:var(--shadow);font-size:.88rem}.preview-float b{color:var(--accent-2)}section{padding:72px 0}.section-head{text-align:center;max-width:640px;margin:0 auto 48px}.section-head h2{font-size:clamp(1.8rem,3vw,2.4rem);margin-bottom:12px;letter-spacing:-.02em}.section-head p{color:var(--text-muted);font-size:1.05rem}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature{padding:28px;border-radius:var(--radius);background:var(--card);border:1px solid var(--card-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:transform .25s,border-color .25s}.feature:hover{transform:translateY(-4px);border-color:rgba(108,92,255,.35)}.feature-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:1.4rem;margin-bottom:18px;background:rgba(108,92,255,.15)}.feature h3{font-size:1.12rem;margin-bottom:10px}.feature p{color:var(--text-muted);font-size:.95rem}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step{text-align:center;padding:24px 16px;border-radius:var(--radius);background:hsla(0,0%,100%,.03);border:1px dashed hsla(0,0%,100%,.1)}.step-num{width:36px;height:36px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}.step h3{font-size:1rem;margin-bottom:8px}.step p{color:var(--text-muted);font-size:.88rem}.download-box{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;padding:40px;border-radius:28px;background:linear-gradient(135deg,rgba(108,92,255,.18),rgba(34,211,238,.1));border:1px solid rgba(108,92,255,.28);box-shadow:var(--shadow)}.download-box h2{font-size:1.8rem;margin-bottom:10px}.download-box p{color:var(--text-muted);margin-bottom:16px}.download-tags{display:flex;flex-wrap:wrap;gap:10px}.tag{padding:6px 12px;border-radius:999px;font-size:.82rem;background:hsla(0,0%,100%,.08);color:var(--text-muted)}.download-actions{display:flex;flex-direction:column;gap:12px;min-width:220px}.download-note{font-size:.82rem;color:var(--text-muted);text-align:center}.safety-box{max-width:960px;margin:0 auto;padding:32px;border-radius:var(--radius);background:var(--card);border:1px solid rgba(52,211,153,.25);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);text-align:center}.safety-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:24px}.safety-badge{padding:8px 16px;border-radius:999px;font-size:.88rem;font-weight:600;background:hsla(0,0%,100%,.06);border:1px solid var(--card-border);color:var(--text-muted)}.safety-badge.safe{background:rgba(52,211,153,.15);border-color:rgba(52,211,153,.35);color:#86efac}.safety-proof{display:block;border-radius:14px;overflow:hidden;border:1px solid var(--card-border);transition:transform .25s,box-shadow .25s}.safety-proof:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.safety-proof img{display:block;width:100%;height:auto}.safety-hash{margin-top:18px;font-size:.82rem;color:var(--text-muted);word-break:break-all}.safety-hash code{font-family:Cascadia Code,Consolas,monospace;font-size:.78rem;color:#94a3b8}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:720px;margin:0 auto}.contact-card{padding:28px;border-radius:var(--radius);background:var(--card);border:1px solid var(--card-border);text-align:center}.contact-card .icon{font-size:2rem;margin-bottom:14px}.contact-card h3{margin-bottom:8px;font-size:1.05rem}.contact-card a,.contact-card p{color:var(--text-muted);font-size:.95rem;text-decoration:none;word-break:break-all}.contact-card a:hover{color:var(--accent-2)}footer{padding:36px 0 48px;border-top:1px solid var(--card-border);color:var(--text-muted);font-size:.88rem;text-align:center}.menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}@media (max-width:960px){.hero{grid-template-columns:1fr;padding-top:56px}.preview{order:-1}.contact-grid,.features{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.download-box{grid-template-columns:1fr;text-align:center}.download-actions{width:100%}.nav-links{display:none}.nav-links.open{display:flex;flex-direction:column;position:absolute;top:64px;right:20px;padding:16px;border-radius:16px;background:rgba(15,18,32,.96);border:1px solid var(--card-border)}.menu-toggle{display:block}}@media (max-width:560px){.steps{grid-template-columns:1fr}.hero-actions{flex-direction:column}.btn{width:100%}}