:root{--bg:#0b1020;--bg-2:#111832;--bg-3:#1a2140;--card:#151c37;--card-2:#1b2348;--border:#262f58;--text:#e6e9f5;--text-2:#a9b0d0;--muted:#7781a6;--primary:#ffb400;--primary-2:#ff7a00;--red:#ff4d4f;--green:#2ecc71;--blue:#4aa3ff;--purple:#a66bff;--grad:linear-gradient(135deg,#ffb400,#ff4d4f 50%,#a66bff);--shadow:0 10px 30px rgba(0,0,0,.35)}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(1200px 600px at 10% -10%,#1b1f55 0%,transparent 60%),radial-gradient(900px 500px at 110% 10%,#3a1560 0%,transparent 55%),var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(11,16,32,.75);border-bottom:1px solid var(--border)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.logo-dot{width:14px;height:14px;border-radius:50%;background:var(--grad);box-shadow:0 0 20px rgba(255,180,0,.6)}
.brand-name{font-size:18px;letter-spacing:1px}
.brand-sub{font-size:12px;color:var(--muted);margin-left:6px}
.nav{display:flex;gap:6px;margin-left:20px;flex:1}
.nav a{padding:8px 14px;border-radius:10px;color:var(--text-2);font-size:14px;transition:.2s}
.nav a:hover,.nav a.active{background:var(--card);color:var(--text)}
.nav-cta{display:flex;align-items:center;gap:10px}
.market-chip{display:flex;align-items:center;gap:8px;padding:6px 12px;border:1px solid var(--border);border-radius:999px;font-size:12px;color:var(--text-2);background:var(--card)}
.market-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* Hero */
.hero{padding:64px 0 32px;position:relative;overflow:hidden}
.hero-slim{padding:80px 0 40px;text-align:center}
.hero-center{max-width:780px;margin:0 auto;text-align:center}
.hero-center .hero-cta{justify-content:center}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;padding:6px 12px;border:1px solid var(--border);border-radius:999px;color:var(--text-2);font-size:12px;margin-bottom:16px;background:var(--card)}
.hero h1{font-size:52px;line-height:1.15;margin:10px 0 18px;font-weight:800}
.lead{color:var(--text-2);font-size:16px;max-width:560px}
.hero-cta{display:flex;gap:12px;margin:24px 0}
.btn{display:inline-flex;align-items:center;gap:6px;padding:12px 20px;border-radius:12px;font-weight:600;font-size:14px;cursor:pointer;transition:.2s;border:1px solid transparent}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,122,0,.35)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:var(--card);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--card-2)}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-2);padding:10px 16px}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.hero-stats{list-style:none;padding:0;margin:28px 0 0;display:flex;gap:32px;flex-wrap:wrap}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats b{font-size:22px;background:var(--grad);-webkit-background-clip:text;color:transparent}
.hero-stats span{font-size:12px;color:var(--muted)}
.hero-visual{position:relative;min-height:380px}
.ticker-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:var(--shadow)}
.ticker-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:13px;color:var(--text-2)}
.flash{color:var(--red);font-weight:700;font-size:11px;padding:2px 8px;border:1px solid var(--red);border-radius:6px;animation:pulse 1.4s infinite}
.ticker-list{list-style:none;padding:0;margin:0}
.ticker-list li{display:grid;grid-template-columns:1fr auto auto;gap:10px;padding:10px 0;border-bottom:1px dashed var(--border);font-size:13px}
.ticker-list li:last-child{border:none}
.ticker-list .name{color:var(--text)}
.ticker-list .code{color:var(--muted);font-size:11px}
.ticker-list .price{font-weight:600}
.up{color:var(--red)}
.down{color:var(--green)}
.float-chip{position:absolute;background:var(--card-2);border:1px solid var(--border);border-radius:12px;padding:8px 14px;font-size:13px;box-shadow:var(--shadow)}
.chip-a{top:-18px;right:-10px;color:var(--primary)}
.chip-b{bottom:-18px;left:10px;color:var(--blue)}

/* Sections */
.section{padding:64px 0}
.section-dark{background:linear-gradient(180deg,transparent,rgba(0,0,0,.15))}
.section-head{text-align:center;margin-bottom:36px}
.section-head h2{font-size:34px;margin:0 0 8px}
.section-head p{color:var(--text-2);margin:0}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.gap-lg{gap:28px}

/* Feature cards */
.feature-card{display:block;padding:26px;border-radius:18px;background:var(--card);border:1px solid var(--border);transition:.25s;position:relative;overflow:hidden}
.feature-card:hover{transform:translateY(-4px);border-color:transparent;box-shadow:var(--shadow)}
.feature-card::before{content:"";position:absolute;inset:0;opacity:0;transition:.25s;background:var(--grad);z-index:0}
.feature-card:hover::before{opacity:.08}
.feature-card>*{position:relative;z-index:1}
.fc-icon{width:52px;height:52px;border-radius:14px;background:var(--bg-3);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.feature-card h3{margin:0 0 8px;font-size:20px}
.feature-card p{color:var(--text-2);font-size:14px;margin:0 0 16px}
.fc-link{color:var(--primary);font-size:13px;font-weight:600}
.fc-1 .fc-icon{background:rgba(255,180,0,.15)}
.fc-2 .fc-icon{background:rgba(74,163,255,.15)}
.fc-3 .fc-icon{background:rgba(166,107,255,.15)}
.fc-4 .fc-icon{background:rgba(46,204,113,.15)}
.fc-5 .fc-icon{background:rgba(255,77,79,.15)}
.fc-6 .fc-icon{background:rgba(255,122,0,.15)}

/* Panels */
.panel{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:24px}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.panel-head h3{margin:0;font-size:18px}
.tag{font-size:11px;padding:4px 10px;border-radius:999px;background:var(--bg-3);color:var(--text-2)}
.tag-live{color:var(--red);border:1px solid var(--red)}
.ai-daily p{color:var(--text-2);font-size:14px;margin:8px 0}
.ai-daily .ai-title{color:var(--primary);font-weight:700;font-size:16px}
.ai-daily .kv{display:flex;gap:16px;flex-wrap:wrap;margin:12px 0}
.ai-daily .kv span{background:var(--bg-3);padding:6px 10px;border-radius:8px;font-size:12px;color:var(--text-2)}
.know-card h4{margin:4px 0 10px;font-size:18px}
.know-card .know-body{color:var(--text-2);font-size:14px;margin-bottom:12px}
.know-card .quiz{background:var(--bg-3);border-radius:12px;padding:14px;margin-bottom:14px}
.know-card .quiz b{color:var(--primary)}

/* Quote bar */
.quote-bar{padding:36px 0;background:linear-gradient(90deg,rgba(255,180,0,.08),rgba(166,107,255,.08));border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.quote{text-align:center;font-size:18px;color:var(--text);font-style:italic}
.quote cite{display:block;margin-top:6px;color:var(--muted);font-size:13px;font-style:normal}

/* Footer */
.site-footer{padding:40px 0 20px;background:var(--bg-2);border-top:1px solid var(--border);margin-top:40px}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.brand-footer{margin-bottom:10px}
.footer-cols{display:flex;gap:60px}
.footer-cols h5{margin:0 0 12px;color:var(--text)}
.footer-cols a{display:block;color:var(--muted);font-size:13px;margin-bottom:6px}
.footer-cols a:hover{color:var(--primary)}
.copyright{border-top:1px solid var(--border);margin-top:24px;padding-top:18px;color:var(--muted);font-size:12px;text-align:center}

/* Page */
.page-hero{padding:48px 0 24px}
.page-hero h1{font-size:38px;margin:0 0 10px}
.page-hero p{color:var(--text-2);max-width:720px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:12px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}

/* Stock table */
.stock-table{width:100%;border-collapse:collapse;font-size:13px}
.stock-table th,.stock-table td{padding:12px;text-align:left;border-bottom:1px solid var(--border)}
.stock-table th{color:var(--muted);font-weight:500;font-size:12px;background:var(--bg-3)}
.stock-table tr:hover td{background:rgba(255,255,255,.02)}
.stock-table .num{text-align:right;font-variant-numeric:tabular-nums}

/* Tabs */
.tabs{display:flex;gap:6px;margin-bottom:20px;border-bottom:1px solid var(--border)}
.tabs button{background:transparent;border:none;color:var(--text-2);padding:10px 16px;font-size:14px;cursor:pointer;border-bottom:2px solid transparent;font-family:inherit}
.tabs button.active{color:var(--primary);border-bottom-color:var(--primary)}

/* Sector card */
.sector-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;transition:.2s}
.sector-card:hover{border-color:var(--primary);transform:translateY(-3px)}
.sector-card h4{margin:0 0 6px;font-size:16px}
.sector-card .chg{font-size:20px;font-weight:700;margin:8px 0}
.sector-card .desc{font-size:12px;color:var(--muted)}
.sector-card .mini-bar{height:4px;background:var(--bg-3);border-radius:2px;margin-top:10px;overflow:hidden}
.sector-card .mini-bar>span{display:block;height:100%;background:var(--grad)}

/* Lessons */
.lesson-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;position:relative;transition:.2s}
.lesson-card:hover{transform:translateY(-3px);border-color:var(--primary)}
.lesson-card .level{position:absolute;top:14px;right:14px;font-size:11px;color:var(--primary);padding:3px 8px;border:1px solid var(--primary);border-radius:6px}
.lesson-card h4{margin:0 0 8px;font-size:17px;padding-right:60px}
.lesson-card p{color:var(--text-2);font-size:13px;margin:0 0 12px}
.lesson-card .meta{display:flex;gap:12px;font-size:12px;color:var(--muted)}
.roadmap{display:flex;gap:14px;overflow-x:auto;padding:10px 0 20px}
.road-step{min-width:200px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;position:relative}
.road-step .step-no{width:28px;height:28px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:10px}
.road-step h5{margin:0 0 6px}
.road-step p{font-size:12px;color:var(--text-2);margin:0}

/* Playground */
.play-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:28px}

/* AI Skills */
.skill-grid{gap:18px}
.skill-card{display:block;padding:24px;border-radius:18px;background:var(--card);border:1px solid var(--border);transition:.25s;position:relative;overflow:hidden;color:inherit;text-decoration:none}
.skill-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow)}
.skill-card::after{content:"";position:absolute;top:0;right:0;width:120px;height:120px;background:radial-gradient(circle,rgba(255,180,0,.08),transparent 70%);pointer-events:none}
.skill-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:14px;box-shadow:0 6px 20px rgba(0,0,0,.3)}
.skill-tag{display:inline-block;font-size:11px;color:var(--primary);letter-spacing:.5px;margin-bottom:6px;padding:2px 8px;border:1px solid rgba(255,180,0,.3);border-radius:999px;background:rgba(255,180,0,.08)}
.skill-card h3{margin:6px 0 8px;font-size:19px}
.skill-card p{color:var(--text-2);font-size:13px;margin:0 0 14px;line-height:1.7}

/* Skill page 公用 */
.skill-page .skill-hero{background:linear-gradient(135deg,rgba(255,180,0,.08),rgba(166,107,255,.08));padding:40px 0 28px;border-bottom:1px solid var(--border)}
.skill-page .skill-hero h1{margin:6px 0 10px;font-size:32px}
.form-group{margin-bottom:16px}
.form-group label{display:block;color:var(--text-2);font-size:13px;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;background:var(--bg-3);border:1px solid var(--border);color:var(--text);padding:10px 14px;border-radius:10px;font-size:14px;font-family:inherit}
.form-group textarea{min-height:120px;resize:vertical}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.chip-select{display:flex;flex-wrap:wrap;gap:8px}
.chip-select span{padding:6px 14px;border:1px solid var(--border);border-radius:999px;font-size:13px;cursor:pointer;color:var(--text-2);background:var(--bg-3);transition:.15s}
.chip-select span:hover{border-color:var(--primary);color:var(--text)}
.chip-select span.chosen{background:rgba(255,180,0,.15);border-color:var(--primary);color:var(--primary)}
.score-bar{height:8px;background:var(--bg-3);border-radius:4px;overflow:hidden;margin:6px 0}
.score-bar>span{display:block;height:100%;background:var(--grad)}
.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:14px 0}
.metric{background:var(--bg-3);padding:12px;border-radius:10px}
.metric .k{color:var(--muted);font-size:11px}
.metric .v{font-size:18px;font-weight:700;margin-top:4px}
.empty-state{text-align:center;padding:40px 20px;color:var(--muted)}
.play-card h3{margin:0 0 10px}
.play-card .intro{color:var(--text-2);font-size:14px;margin-bottom:18px}
.quiz-q{margin-bottom:20px}
.quiz-q .q{font-weight:600;margin-bottom:10px}
.quiz-opt{display:block;padding:10px 14px;margin-bottom:8px;border:1px solid var(--border);border-radius:10px;cursor:pointer;transition:.15s;font-size:14px;color:var(--text-2)}
.quiz-opt:hover{border-color:var(--primary);color:var(--text)}
.quiz-opt.chosen{background:rgba(255,180,0,.12);border-color:var(--primary);color:var(--primary)}
.result-box{display:none;background:var(--bg-3);border-radius:14px;padding:20px;margin-top:16px}
.result-box.show{display:block}
.result-box h4{margin:0 0 8px;color:var(--primary);font-size:20px}

/* Sim trade */
.sim-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.sim-list{max-height:360px;overflow-y:auto}
.sim-row{display:grid;grid-template-columns:1fr auto auto auto;gap:10px;padding:10px;border-bottom:1px solid var(--border);align-items:center;font-size:13px}
.sim-row button{padding:6px 10px;background:var(--grad);border:none;color:#fff;border-radius:6px;cursor:pointer;font-size:12px}
.portfolio{background:var(--bg-3);border-radius:14px;padding:18px}
.portfolio .money{font-size:28px;font-weight:700;background:var(--grad);-webkit-background-clip:text;color:transparent}
.holdings{margin-top:14px;font-size:13px}
.holdings .h-row{display:grid;grid-template-columns:1fr auto auto;gap:10px;padding:8px 0;border-bottom:1px dashed var(--border)}
.holdings .h-row button{padding:4px 8px;background:var(--red);color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:11px}

/* Quote wall */
.quote-wall{columns:3;column-gap:18px}
.quote-wall .q-item{break-inside:avoid;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;margin-bottom:18px}
.quote-wall .q-item p{margin:0 0 8px;font-style:italic;color:var(--text)}
.quote-wall .q-item cite{font-style:normal;color:var(--primary);font-size:12px}

/* Chat */
.chat-wrap{background:var(--card);border:1px solid var(--border);border-radius:20px;overflow:hidden;display:flex;flex-direction:column;height:600px}
.chat-body{flex:1;padding:24px;overflow-y:auto}
.msg{display:flex;gap:12px;margin-bottom:18px}
.msg .avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:18px}
.msg.ai .avatar{background:var(--grad)}
.msg.me .avatar{background:var(--bg-3)}
.msg .bubble{background:var(--bg-3);padding:12px 16px;border-radius:14px;max-width:76%;font-size:14px;line-height:1.6}
.msg.me{flex-direction:row-reverse}
.msg.me .bubble{background:rgba(255,180,0,.12);color:var(--text)}
.chat-input{display:flex;gap:10px;padding:16px;border-top:1px solid var(--border);background:var(--bg-2)}
.chat-input input{flex:1;background:var(--bg-3);border:1px solid var(--border);color:var(--text);padding:12px 16px;border-radius:10px;font-size:14px;font-family:inherit}
.chat-input input:focus{outline:none;border-color:var(--primary)}
.chat-input button{padding:12px 22px;background:var(--grad);border:none;color:#fff;border-radius:10px;cursor:pointer;font-weight:600}
.chat-suggest{display:flex;gap:8px;flex-wrap:wrap;padding:12px 16px;border-top:1px solid var(--border)}
.chat-suggest span{padding:6px 12px;background:var(--bg-3);border-radius:999px;font-size:12px;color:var(--text-2);cursor:pointer}
.chat-suggest span:hover{color:var(--primary)}

/* Responsive */
@media (max-width:960px){
  .nav{display:none}
  .hero-inner{grid-template-columns:1fr}
  .hero h1{font-size:36px}
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .sim-wrap{grid-template-columns:1fr}
  .quote-wall{columns:1}
}
@media (max-width:560px){
  .grid-3,.grid-4{grid-template-columns:1fr}
  .hero h1{font-size:28px}
}

/* Feature card colors */
.fc-7{background:linear-gradient(135deg,#1a2744,#162040);border-color:#2a3a60}.fc-8{background:linear-gradient(135deg,#2d1526,#1d1020);border-color:#4a2040}
.fc-9{background:linear-gradient(135deg,#1b152d,#15102a);border-color:#3a2860}

/* Forum */
.forum-post{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;margin-bottom:12px;cursor:pointer;transition:.2s}
.forum-post:hover{border-color:var(--purple);transform:translateY(-2px)}
.fp-head{display:flex;justify-content:space-between;align-items:center}
.fp-nick{font-weight:700;font-size:13px;color:var(--primary)}

/* Vent */
.vent-card{max-width:800px;margin:0 auto}
.vent-pane{animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* Responsive for forum/vent */
@media (max-width:960px){
  #postsList{grid-column:1/-1}
}