*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0a0e17;--card:#111827;--card2:#1a2332;--border:#1e2d3d;--accent:#3b82f6;--accent2:#8b5cf6;--green:#10b981;--red:#ef4444;--yellow:#f59e0b;--text:#e2e8f0;--text2:#94a3b8;--text3:#64748b}
body{font-family:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
#particles{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}
.container{position:relative;z-index:1;max-width:1100px;margin:0 auto;padding:40px 20px}

/* Nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(10,14,23,0.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 20px;margin:-40px -20px 30px}
.nav-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;height:52px;gap:20px}
.nav-brand{font-size:16px;font-weight:700;color:var(--accent);white-space:nowrap}
.nav-brand span{color:var(--accent2)}
.nav a{color:var(--text2);text-decoration:none;font-size:13px;transition:color .2s}
.nav a:hover{color:var(--accent)}

/* Hero */
.hero{text-align:center;padding:50px 0 40px}
.hero h1{font-size:38px;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}
.hero>p{color:var(--text2);font-size:15px}
.hero .stats{display:flex;justify-content:center;gap:40px;margin-top:24px;flex-wrap:wrap}
.hero .stat{text-align:center}
.hero .stat .num{font-size:28px;font-weight:700;color:var(--accent)}
.hero .stat .label{font-size:12px;color:var(--text3);margin-top:2px}

/* Topic cards (index) */
.topics{display:flex;flex-direction:column;gap:14px;margin-top:30px}
.topic-card{display:flex;align-items:center;gap:18px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px 24px;text-decoration:none;color:inherit;transition:all .3s}
.topic-card:hover{border-color:var(--accent);transform:translateX(6px);box-shadow:0 4px 20px rgba(59,130,246,0.1)}
.topic-icon{width:52px;height:52px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.topic-body{flex:1;min-width:0}
.topic-body h2{font-size:17px;color:var(--text);margin-bottom:3px}
.topic-sub{font-size:12px;color:var(--text3);margin-bottom:6px}
.topic-status{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text2);flex-wrap:wrap}
.status-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.status-dot.loss{background:var(--red)}.status-dot.win{background:var(--green)}
.status-amount{font-weight:600;margin-left:auto}
.status-amount.loss{color:var(--red)}.status-amount.win{color:var(--green)}
.topic-bar{height:3px;background:var(--border);border-radius:2px;margin-top:8px;overflow:hidden}
.bar-fill{height:100%;border-radius:2px;transition:width .6s}
.topic-arrow{color:var(--text3);font-size:20px;flex-shrink:0;transition:transform .2s}
.topic-card:hover .topic-arrow{transform:translateX(4px);color:var(--accent)}

/* Page header */
.page-header{display:flex;align-items:center;gap:16px;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.page-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:28px;flex-shrink:0}
.page-title{font-size:28px;font-weight:700}
.page-sub{font-size:13px;color:var(--text3)}

/* Cards */
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px;margin-bottom:16px}
.card-header{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.card-header h2{font-size:18px;color:var(--text)}
.card-header .badge{padding:3px 10px;border-radius:6px;font-size:11px;font-weight:600}
.badge-loss{background:rgba(239,68,68,0.15);color:var(--red)}
.badge-win{background:rgba(16,185,129,0.15);color:var(--green)}
.badge-pending{background:rgba(59,130,246,0.15);color:var(--accent)}
.badge-draw{background:rgba(245,158,11,0.15);color:var(--yellow)}

/* Battle grid */
.battle-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.battle-item{background:var(--card2);border-radius:10px;padding:16px;text-align:center}
.battle-item .model{font-size:12px;color:var(--text3);margin-bottom:4px}
.battle-item .amount{font-size:24px;font-weight:700}
.battle-item .amount.loss{color:var(--red)}
.battle-item .amount.win{color:var(--green}
.battle-item .detail{font-size:11px;color:var(--text3);margin-top:2px}
.battle-item .winner-badge{display:inline-block;font-size:11px;background:rgba(16,185,129,0.15);color:var(--green);padding:2px 8px;border-radius:4px;margin-top:4px}

/* Tables */
.table-wrap{overflow-x:auto;margin:12px 0}
table{width:100%;border-collapse:collapse;font-size:12px}
th{background:var(--card2);color:var(--text2);font-weight:600;text-align:left;padding:10px 12px;white-space:nowrap}
td{padding:9px 12px;border-bottom:1px solid var(--border);white-space:nowrap}
tr:hover td{background:rgba(59,130,246,0.05)}
.text-green{color:var(--green)}.text-red{color:var(--red)}.text-yellow{color:var(--yellow)}.text-blue{color:var(--accent)}

/* Code blocks */
pre{background:var(--card2);border:1px solid var(--border);border-radius:10px;padding:16px;overflow-x:auto;margin:12px 0;font-size:12px;line-height:1.6}
code{background:rgba(59,130,246,0.1);padding:1px 5px;border-radius:4px;font-size:11px;color:var(--accent)}
pre code{background:none;color:var(--text2);padding:0}

/* Section titles */
.section-title{font-size:20px;font-weight:700;color:var(--text);margin:30px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}
.section-title .icon{font-size:20px}

/* Knowledge items */
.knowledge-item{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:16px;margin-bottom:10px}
.knowledge-item h4{font-size:14px;color:var(--accent);margin-bottom:6px}
.knowledge-item p{font-size:12px;color:var(--text2);line-height:1.6}

/* Links */
a{color:var(--accent)}
a:hover{text-decoration:underline}

/* Footer */
footer{text-align:center;padding:40px 0;color:var(--text3);font-size:12px;border-top:1px solid var(--border);margin-top:40px}

/* Responsive */
@media(max-width:640px){
.hero h1{font-size:26px}
.hero .stats{gap:20px}
.battle-grid{grid-template-columns:1fr 1fr}
.topic-card{padding:16px}
}