:root{--page-bg:#f4f6f9;--surface:#ffffff;--surface-strong:#0a1128;--text-main:#1e293b;--text-muted:#64748b;--accent-us:#002868;--accent-ca:#ff0000;--accent-mx:#006847;--accent-gold:#d4af37;--border:#e2e8f0;--card-shadow:0 4px 20px rgba(0,0,0,0.05);--transition:all 0.3s ease}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background-color:var(--page-bg);color:var(--text-main);line-height:1.6}.navbar{background-color:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);box-shadow:0 2px 10px rgba(0,0,0,0.02)}.navbar-brand img{max-height:40px}.nav-link{color:var(--text-main);font-weight:500;padding:0.5rem 1rem !important;transition:var(--transition)}.nav-link:hover{color:var(--accent-ca)}section{padding:5rem 0}.section-title{position:relative;margin-bottom:3rem;font-weight:800;letter-spacing:0.5px}.section-title::after{content:'';position:absolute;left:0;bottom:-10px;width:60px;height:4px;background:linear-gradient(90deg,var(--accent-us),var(--accent-ca),var(--accent-mx));border-radius:2px}.section-title.text-center::after{left:50%;transform:translateX(-50%)}.hero-section{background:linear-gradient(135deg,#0a1128 0%,#1c2d5a 100%);color:#ffffff;padding:8rem 0 6rem;position:relative;overflow:hidden}.hero-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 80% 20%,rgba(255,0,0,0.15),transparent 40%);pointer-events:none}.hero-tag{background:linear-gradient(90deg,var(--accent-ca),var(--accent-mx));padding:0.35rem 1rem;border-radius:50px;font-size:0.85rem;font-weight:600;display:inline-block;margin-bottom:1.5rem;text-transform:uppercase;letter-spacing:1px}.hero-title{font-size:2.8rem;font-weight:800;line-height:1.2;margin-bottom:1.5rem}.hero-desc{font-size:1.1rem;color:#cbd5e1;margin-bottom:2rem;opacity:0.9}.hero-img{border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,0.3);border:3px solid rgba(255,255,255,0.1)}.data-card{background:var(--surface);border-radius:12px;padding:1.5rem;box-shadow:var(--card-shadow);border:1px solid var(--border);text-align:center;transition:var(--transition)}.data-card:hover{transform:translateY(-5px)}.data-num{font-size:2.5rem;font-weight:800;color:var(--accent-us);line-height:1;margin-bottom:0.5rem}.data-label{font-size:0.9rem;color:var(--text-muted);font-weight:600}.schedule-card{background:var(--surface);border-radius:12px;padding:1.5rem;margin-bottom:1rem;box-shadow:var(--card-shadow);border-left:5px solid var(--accent-us);transition:var(--transition)}.schedule-card.stage-淘汰赛{border-left-color:var(--accent-ca)}.schedule-time{font-weight:700;color:var(--accent-us)}.team-flag-name{display:flex;align-items:center;font-weight:600}.score-badge{background-color:#f1f5f9;padding:0.35rem 0.75rem;border-radius:6px;font-weight:700;font-size:1.1rem}.group-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.5rem}.group-card{background:var(--surface);border-radius:12px;border:1px solid var(--border);box-shadow:var(--card-shadow);overflow:hidden}.group-header{background:var(--accent-us);color:#ffffff;padding:0.75rem 1.25rem;font-weight:700;display:flex;justify-content:space-between;align-items:center}.group-header.bg-ca{background:var(--accent-ca)}.group-header.bg-mx{background:var(--accent-mx)}.group-list{list-style:none;padding:0;margin:0}.group-item{padding:0.75rem 1.25rem;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.group-item:last-child{border-bottom:none}.team-grid-card{background:var(--surface);border-radius:12px;border:1px solid var(--border);overflow:hidden;box-shadow:var(--card-shadow);transition:var(--transition)}.team-grid-card:hover{transform:translateY(-5px)}.team-meta{padding:1.25rem}.team-tag{font-size:0.75rem;padding:0.2rem 0.5rem;border-radius:4px;background:#f1f5f9;color:var(--text-muted);font-weight:600}.news-card{background:var(--surface);border-radius:12px;border:1px solid var(--border);overflow:hidden;height:100%;box-shadow:var(--card-shadow);transition:var(--transition)}.news-card:hover{transform:translateY(-3px)}.news-content{padding:1.5rem}.news-date{font-size:0.8rem;color:var(--text-muted);margin-bottom:0.5rem}.news-title{font-size:1.15rem;font-weight:700;line-height:1.4;margin-bottom:0.75rem}.news-desc{font-size:0.9rem;color:var(--text-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.guide-section{background-color:#ffffff;border-radius:16px;padding:3rem;box-shadow:var(--card-shadow);border:1px solid var(--border)}.guide-icon{font-size:2rem;color:var(--accent-ca);margin-bottom:1rem}.accordion-item{border:1px solid var(--border);border-radius:10px !important;margin-bottom:0.75rem;overflow:hidden;box-shadow:var(--card-shadow)}.accordion-button{font-weight:700;color:var(--text-main)}.accordion-button:not(.collapsed){background-color:rgba(255,0,0,0.03);color:var(--accent-ca)}footer{background-color:var(--surface-strong);color:#94a3b8;padding:4rem 0 2rem;font-size:0.9rem}footer h5{color:#ffffff;font-weight:700;margin-bottom:1.5rem}footer a{color:#94a3b8;text-decoration:none;transition:var(--transition)}footer a:hover{color:#ffffff}.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:2rem;margin-top:3rem}@media (max-width:768px){.hero-title{font-size:2rem}section{padding:3rem 0}.guide-section{padding:1.5rem}}