*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0A0614;
  --bg-card:rgba(139,92,246,.06);
  --purple:#8B5CF6;
  --purple-light:#A78BFA;
  --cyan:#06B6D4;
  --cyan-light:#22D3EE;
  --text:#E2E8F0;
  --muted:#94A3B8;
  --border:rgba(139,92,246,.2);
  --grad:linear-gradient(135deg,var(--purple),var(--cyan));
  --radius:16px;
  --shadow:0 8px 32px rgba(139,92,246,.15)
}
body{font-family:'Noto Sans SC',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;min-height:100vh;background-image:radial-gradient(ellipse at 20% 0%,rgba(139,92,246,.18) 0%,transparent 50%),radial-gradient(ellipse at 80% 100%,rgba(6,182,212,.1) 0%,transparent 50%)}
a{color:var(--cyan-light);text-decoration:none;transition:color .2s}
a:hover{color:var(--purple-light)}
.c{max-width:1140px;margin:0 auto;padding:0 24px}

.topnav{position:sticky;top:0;z-index:100;background:rgba(10,6,20,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);padding:14px 0}
.topnav .c{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:800;color:var(--text)}
.brand img{width:36px;height:36px}
.brand span{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.navlinks{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.navlinks a{padding:8px 16px;border-radius:8px;font-size:.88rem;font-weight:600;color:var(--muted);transition:.2s}
.navlinks a:hover,.navlinks a.on{color:var(--text);background:rgba(139,92,246,.12)}
.navlinks .dl-btn{background:var(--grad);color:#0A0614!important;font-weight:700}
.navlinks .dl-btn:hover{opacity:.9;transform:translateY(-1px)}

.hero{padding:80px 0 60px;text-align:center;position:relative}
.hero .badge{display:inline-block;padding:6px 14px;border-radius:50px;font-size:.75rem;font-weight:700;letter-spacing:.06em;background:rgba(139,92,246,.15);border:1px solid var(--border);color:var(--purple-light);margin-bottom:20px}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:900;line-height:1.15;margin-bottom:18px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero .lead{color:var(--muted);font-size:1.08rem;max-width:620px;margin:0 auto 32px}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:50px;font-weight:700;font-size:.92rem;border:none;cursor:pointer;transition:.25s}
.btn-primary{background:var(--grad);color:#0A0614;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(139,92,246,.3)}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--purple-light)}
.btn-outline:hover{border-color:var(--purple);color:var(--text)}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:40px 0}
.stat{text-align:center;padding:24px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius)}
.stat .n{font-size:1.8rem;font-weight:900;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat .l{font-size:.78rem;color:var(--muted);margin-top:4px}

.sec{padding:56px 0}
.sec-title{text-align:center;font-size:1.6rem;font-weight:800;margin-bottom:36px}
.sec-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:.2s}
.card:hover{border-color:rgba(139,92,246,.45);transform:translateY(-3px);box-shadow:var(--shadow)}
.card .icon{font-size:2rem;margin-bottom:12px}
.card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;color:var(--purple-light)}
.card p{font-size:.88rem;color:var(--muted)}

.proto-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:20px 0}
.proto-tag{padding:8px 18px;border-radius:50px;font-size:.82rem;font-weight:600;background:var(--bg-card);border:1px solid var(--border);color:var(--muted);transition:.2s}
.proto-tag:hover{border-color:var(--cyan);color:var(--cyan-light)}

.layout{max-width:960px;margin:0 auto;padding:40px 24px;display:grid;grid-template-columns:1fr 260px;gap:40px}
.main article{margin-bottom:40px}
.main h2{font-size:1.5rem;font-weight:800;margin-bottom:14px;color:var(--purple-light)}
.main h3{font-size:1.1rem;font-weight:700;margin:24px 0 10px}
.main p{margin-bottom:14px;color:var(--muted);font-size:.95rem}
.main .lead{font-size:1.1rem;color:var(--text);line-height:1.8;margin-bottom:20px}

.side .box{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px}
.side .box h4{font-size:.72rem;text-transform:uppercase;letter-spacing:2px;border-bottom:1px solid var(--border);padding-bottom:10px;margin-bottom:14px;font-weight:700;color:var(--purple-light)}
.side .box li{list-style:none;padding:6px 0;border-bottom:1px solid var(--border);font-size:.88rem;color:var(--muted)}
.side .box li:last-child{border:none}
.side .dl-side{display:block;text-align:center;padding:14px;background:var(--grad);color:#0A0614!important;font-weight:700;font-size:.88rem;border-radius:8px;margin-top:12px}
.side .dl-side:hover{opacity:.9}

.guide-step{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid var(--border)}
.guide-num{width:40px;height:40px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;color:#0A0614;flex-shrink:0}
.guide-step h3{font-size:1.05rem;margin-bottom:6px;color:var(--text)}
.guide-step p{font-size:.9rem;color:var(--muted)}

.dl-section{margin-top:48px;padding-top:40px;border-top:1px solid var(--border)}
.dl-section h2{font-size:1.35rem;font-weight:800;margin-bottom:14px;color:var(--purple-light)}
.dl-section h3{font-size:1.05rem;font-weight:700;margin:22px 0 10px;color:var(--text)}
.dl-section p{font-size:.92rem;color:var(--muted);margin-bottom:12px;line-height:1.75}
.dl-section ul{margin:0 0 14px 20px;font-size:.9rem;color:var(--muted)}
.dl-section li{margin-bottom:8px;line-height:1.65}
.dl-section code{color:var(--cyan-light);font-size:.88rem}
.dl-hint{padding:16px 18px;border-radius:12px;background:rgba(139,92,246,.08);border:1px solid var(--border);font-size:.88rem;color:var(--muted);line-height:1.65;margin:16px 0}
.dl-hint strong{color:var(--purple-light)}

.dl-page{max-width:900px;margin:0 auto;padding:40px 24px 60px}

.version-card{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 32px;margin-bottom:32px;flex-wrap:wrap}
.version-card .ver-label{font-size:.8rem;color:var(--muted);margin-bottom:6px}
.version-card .ver-num{font-size:2.8rem;font-weight:900;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.version-card .ver-meta{font-size:.82rem;color:var(--muted);margin-top:8px}
.version-card .ver-btns{display:flex;gap:12px;flex-wrap:wrap}
.version-card .ver-btns .btn{padding:12px 24px;font-size:.9rem}

.platform-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px}
.platform-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 22px;text-align:center;display:flex;flex-direction:column;align-items:center;transition:.2s}
.platform-card:hover{border-color:rgba(139,92,246,.5);box-shadow:var(--shadow)}
.platform-card .plat-icon{font-size:2.8rem;margin-bottom:14px}
.platform-card h3{font-size:1.1rem;font-weight:700;margin-bottom:8px;color:var(--purple-light)}
.platform-card .plat-desc{font-size:.85rem;color:var(--muted);line-height:1.6;flex:1;margin-bottom:6px}
.platform-card .plat-file{font-size:.75rem;color:var(--muted);font-family:monospace;opacity:.8;margin-bottom:20px}
.platform-card .btn-dl{display:block;width:100%;padding:16px 20px;background:var(--grad);color:#0A0614;font-weight:800;font-size:1rem;border-radius:10px;text-decoration:none!important;text-align:center;transition:.2s}
.platform-card .btn-dl:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(139,92,246,.35)}

.dl-more{text-align:center;font-size:.85rem;color:var(--muted);margin-bottom:32px;line-height:1.7}
.dl-more a{color:var(--cyan-light)}

.dl-notice{border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-top:32px;font-size:.88rem;color:var(--muted);text-align:center;background:var(--bg-card)}

.kbd-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.88rem}
.kbd-table th,.kbd-table td{padding:12px 16px;border:1px solid var(--border);text-align:left}
.kbd-table th{background:rgba(139,92,246,.08);font-weight:700;font-size:.78rem;color:var(--purple-light)}
.kbd-table kbd{background:var(--purple);color:#fff;padding:2px 8px;border-radius:4px;font-size:.82rem;font-family:monospace}

.faq h3{font-size:1.05rem;margin:20px 0 8px;color:var(--text)}
.faq p{font-size:.9rem;color:var(--muted);margin-bottom:12px}

.foot{border-top:1px solid var(--border);padding:32px 24px;text-align:center;font-size:.78rem;color:var(--muted);margin-top:40px}
.foot a{color:var(--cyan-light)}

.page-hero{padding:60px 0 30px;text-align:center}
.page-hero h1{font-size:2rem;font-weight:900;margin-bottom:8px}
.page-hero p{color:var(--muted)}

.hero-split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;text-align:left;padding:60px 0 50px}
.hero-split .hero-text .badge{margin-bottom:16px}
.hero-split .hero-text h1{text-align:left;font-size:clamp(1.8rem,4vw,2.8rem)}
.hero-split .hero-text .lead{margin:0 0 28px;text-align:left;max-width:none}
.hero-split .hero-btns{justify-content:flex-start}
.hero-visual img{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--border);box-shadow:0 20px 60px rgba(139,92,246,.25),0 0 0 1px rgba(139,92,246,.1)}
.split-img img{box-shadow:0 16px 48px rgba(0,0,0,.35)}
.page-img{display:block;width:100%;max-width:960px;height:auto;margin:0 auto 32px;border-radius:var(--radius);border:1px solid var(--border);box-shadow:0 20px 60px rgba(139,92,246,.2)}

.split-block{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin-bottom:48px}
.split-block.reverse .split-img{order:2}
.split-block.reverse .split-text{order:1}
.split-img img{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--border)}
.split-text h2{font-size:1.35rem;font-weight:800;margin-bottom:14px;color:var(--purple-light)}
.split-text p{font-size:.92rem;color:var(--muted);margin-bottom:12px;line-height:1.75}
.split-text ul{margin:12px 0 0 18px;color:var(--muted);font-size:.9rem}
.split-text li{margin-bottom:8px}

.timeline{position:relative;padding-left:28px;margin:20px 0}
.timeline::before{content:'';position:absolute;left:6px;top:4px;bottom:4px;width:2px;background:var(--border)}
.tl-item{position:relative;margin-bottom:22px}
.tl-item::before{content:'';position:absolute;left:-26px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--grad)}
.tl-item .yr{font-size:.78rem;color:var(--cyan-light);font-weight:700;margin-bottom:4px}
.tl-item p{font-size:.88rem;color:var(--muted);margin:0}

.pitfall-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:20px}
.pitfall{background:rgba(239,68,68,.06);border:1px solid rgba(239,68,68,.2);border-radius:12px;padding:18px}
.pitfall h4{font-size:.92rem;color:#fca5a5;margin-bottom:6px}
.pitfall p{font-size:.85rem;color:var(--muted);margin:0;line-height:1.6}

.scenario-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}
.scenario{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:20px}
.scenario h4{font-size:.95rem;color:var(--text);margin-bottom:8px}
.scenario p{font-size:.85rem;color:var(--muted);margin:0;line-height:1.65}

@media(max-width:768px){
  .grid3,.stats{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .layout{grid-template-columns:1fr}
  .hero{padding:60px 0 40px}
  .hero-split{grid-template-columns:1fr;text-align:center;padding:40px 0}
  .hero-split .hero-text h1,.hero-split .hero-text .lead{text-align:center}
  .hero-split .hero-btns{justify-content:center}
  .split-block,.split-block.reverse{grid-template-columns:1fr}
  .split-block.reverse .split-img,.split-block.reverse .split-text{order:unset}
  .pitfall-grid,.scenario-cards{grid-template-columns:1fr}
  .platform-grid{grid-template-columns:1fr}
  .version-card{flex-direction:column;align-items:flex-start}
}