:root{--b1:#f5f5f0;--b2:#fff;--b3:#eee;--ac:#FF6E00;--a2:#636363;--tx:#222;--mt:#636363;--card-bg:#fff;--card-border:#e0e0e0}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--b1);color:var(--tx);line-height:1.6}
.container{max-width:1200px;margin:0 auto;padding:0 20px}a{color:var(--ac);text-decoration:none;transition:all .3s}a:hover{color:var(--a2)}
.navbar{background:#fff;border-bottom:1px solid var(--card-border);position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:1.4rem;font-weight:800;color:#FF6E00!important;letter-spacing:2px}
.nav-links{display:flex;gap:30px}.nav-links a{color:var(--tx);font-size:.85rem;font-weight:500}
.nav-links a:hover,.nav-links a.active{color:var(--ac)}
.nav-actions{display:flex;gap:10px}
.btn-nav{padding:8px 18px;border-radius:6px;font-size:.8rem;font-weight:600}
.btn-nav-primary{background:var(--ac);color:#fff!important}
.btn-nav-outline{border:1px solid var(--ac);color:var(--ac)!important}
.nav-toggle{display:none;background:0 0;border:none;cursor:pointer;padding:5px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--tx);margin:5px 0}
.hero{background:linear-gradient(135deg,#FF6E00 0,#FF8C33 40%,#FFB066 100%);padding:80px 0;text-align:center}
.hero h1{font-size:clamp(1.7rem,4vw,2.5rem);color:#636363;margin-bottom:15px}
.hero p{color:#636363;font-size:.9rem;max-width:600px;margin:0 auto 28px}
.hero .btn-group{display:flex;gap:15px;justify-content:center}
.hero .btn-primary{background:#636363;color:#fff!important;padding:12px 32px;border-radius:8px;font-weight:700;font-size:.9rem;box-shadow:0 4px 12px rgba(0,0,0,.1)}
.hero .btn-secondary{border:2px solid #636363;color:#636363!important;padding:12px 32px;border-radius:8px;font-weight:600;font-size:.9rem}
.stats{background:#636363;padding:40px 0;border-bottom:1px solid #888}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stat-card{text-align:center;padding:20px}
.stat-card .num{font-size:2rem;font-weight:800;color:#FF6E00;margin-bottom:5px}
.stat-card .label{font-size:.85rem;color:#ddd}
.stat-card+.stat-card{border-left:1px solid #888}
.features{padding:60px 0;background:#fff}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.feature-card{background:#f0efed;border-radius:10px;padding:28px;text-align:center;transition:.3s;border:1px solid #636363}
.feature-card:hover{border-color:var(--ac);transform:translateY(-4px);box-shadow:0 8px 25px rgba(255,110,0,.1)}
.feature-card .fc-icon{font-size:2.5rem;margin-bottom:15px}
.feature-card h3{font-size:1.05rem;margin-bottom:8px;color:var(--tx)}
.feature-card p{color:var(--mt);font-size:.8rem;line-height:1.6}
.sec-title{text-align:center;margin-bottom:40px}
.sec-title h2{font-size:1.6rem;color:var(--tx)}.sec-title h2 span{color:var(--ac)}
.sec-title p{color:var(--mt);font-size:.85rem;margin-top:8px}
.articles{padding:60px 0;background:#fff}.art-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.art-card{background:#fff;border-radius:10px;overflow:hidden;border:1px solid #d0cfcc;transition:.3s;box-shadow:0 1px 3px rgba(99,99,99,.08)}
.art-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(0,0,0,.08);border-color:var(--ac)}
.art-card .ac-body{padding:18px}
.art-card .ac-tag{background:var(--ac);color:#fff;padding:2px 10px;border-radius:4px;font-size:.7rem;font-weight:600;display:inline-block;margin-bottom:8px}
.art-card .ac-title{font-size:.88rem;font-weight:600;margin-bottom:6px}
.art-card .ac-title a{color:var(--tx)}.art-card .ac-title a:hover{color:var(--ac)}
.art-card .ac-desc{font-size:.78rem;color:var(--mt);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-card .ac-meta{font-size:.7rem;color:var(--mt)}
.cta{background:#636363;padding:60px 0;text-align:center}
.cta h2{font-size:1.5rem;color:#FF6E00;margin-bottom:10px}
.cta p{color:#ddd;font-size:.9rem;margin-bottom:25px}
.cta .btn-group{display:flex;gap:15px;justify-content:center}
.cta .btn-primary{background:#FF6E00;color:#fff!important;padding:14px 36px;border-radius:8px;font-weight:700;font-size:.95rem}
.cta .btn-secondary{border:2px solid #fff;color:#fff!important;padding:14px 36px;border-radius:8px;font-weight:600;font-size:.95rem}
.footer{background:#636363;padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:30px;margin-bottom:30px}
.footer h3{font-size:.95rem;color:var(--ac);margin-bottom:15px}.footer p{color:#ccc;font-size:.8rem;line-height:1.7}
.footer ul{list-style:none}.footer ul li{margin-bottom:8px}
.footer ul li a{color:#ccc;font-size:.8rem}.footer ul li a:hover{color:var(--ac)}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #888;color:#ccc;font-size:.75rem}
.article-page{padding:40px 0;min-height:60vh;background:#fff}
.article-page .container{max-width:800px}
.article-page .breadcrumb{font-size:.8rem;color:#636363;margin-bottom:25px;padding:10px 15px;background:#f0efed;border-radius:6px}
.article-page .breadcrumb a{color:var(--ac)}.article-page .breadcrumb span{margin:0 8px}
.article-page h1{font-size:1.5rem;margin-bottom:15px;line-height:1.4}
.art-header-meta{display:flex;gap:20px;color:var(--mt);font-size:.8rem;margin-bottom:30px;padding-bottom:15px;border-bottom:1px solid var(--card-border)}
.art-tag{background:var(--ac);color:#fff;padding:2px 10px;border-radius:4px;font-size:.75rem;font-weight:600}
.art-content{font-size:.92rem;line-height:1.9;color:#444}.art-content p{margin-bottom:16px}
.art-content h2{font-size:1.2rem;color:var(--ac);margin:25px 0 15px}
.reg-section{background:linear-gradient(135deg,#FF6E00,#FF8C33);border-radius:10px;padding:25px;margin:30px 0;text-align:center}
.reg-section h3{color:#fff;font-size:1.05rem;margin-bottom:10px}
.reg-section p{color:rgba(255,255,255,.9);font-size:.82rem;margin-bottom:18px}
.reg-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.reg-btn-binance{background:#fff;color:var(--ac)!important;padding:10px 24px;border-radius:6px;font-weight:700;font-size:.85rem}
.reg-btn-okx{background:#fff;color:#FF6E00!important;padding:10px 24px;border-radius:6px;font-weight:700;font-size:.85rem;border:1px solid #fff;opacity:.9}
.nav-section{border-top:1px solid var(--card-border);border-bottom:1px solid var(--card-border);padding:15px 0;margin:25px 0;display:flex;justify-content:space-between}
.nav-section a{font-size:.85rem;color:var(--ac)}.nav-section span{font-size:.85rem;color:var(--mt)}
.disclaimer{background:#fff8e6;border-left:3px solid var(--ac);padding:12px 15px;margin:20px 0;border-radius:4px;font-size:.78rem;color:#666;line-height:1.6}
.cat-page{padding:40px 0;min-height:60vh;background:#fff}
.cat-page h1{font-size:1.6rem;margin-bottom:8px;color:var(--ac)}
.cat-page .section-sub{color:var(--mt);font-size:.85rem;margin-bottom:30px}
.cat-list{display:flex;flex-direction:column;gap:15px}
.cat-list-item{background:#f5f5f0;border:1px solid var(--card-border);border-radius:8px;padding:18px 20px;transition:.3s}
.cat-list-item:hover{border-color:var(--ac);transform:translateX(3px)}
.cat-list-item h3{margin:5px 0}.cat-list-item h3 a{color:var(--tx);font-size:.95rem;font-weight:500}
.cat-list-item h3 a:hover{color:var(--ac)}.cat-list-item p{color:var(--mt);font-size:.82rem;margin:6px 0}
.cat-list-item .cat-meta{color:var(--mt);font-size:.72rem}
.cat-tag{background:var(--ac);color:#fff;padding:1px 8px;border-radius:3px;font-size:.7rem;font-weight:600}
@media(max-width:992px){.art-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.stats-grid,.features-grid{grid-template-columns:1fr}.art-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.nav-links,.nav-actions{display:none}.nav-links.open,.nav-actions.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:#fff;padding:20px;gap:15px;box-shadow:0 4px 12px rgba(0,0,0,.1)}.nav-actions.open{top:auto;margin-top:-10px}.nav-toggle{display:block}.hero{padding:50px 0}.stat-card+.stat-card{border-left:none;padding-top:15px;border-top:1px solid var(--card-border)}}
@media(max-width:480px){.features-grid,.art-grid,.footer-grid{grid-template-columns:1fr}}