:root{--usa-blue:#0A2540;--mex-green:#006847;--can-red:#DA291C;--accent-gold:#D4AF37;--page-bg:#F4F6F9;--surface:#FFFFFF;--surface-strong:#1E293B;--text-main:#0F172A;--text-muted:#64748B;--text-light:#F8FAFC;--border:#E2E8F0;--gradient-usa-can:linear-gradient(135deg,var(--usa-blue) 0%,var(--can-red) 100%);--gradient-mex:linear-gradient(135deg,var(--mex-green) 0%,var(--accent-gold) 100%)}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(10,37,64,0.95) !important;backdrop-filter:blur(10px);border-bottom:2px solid var(--accent-gold);z-index:1030}.navbar-brand img{max-height:45px;object-fit:contain}.nav-link{color:var(--text-light) !important;font-weight:500;transition:color 0.3s}.nav-link:hover{color:var(--accent-gold) !important}.hero-section{background:var(--gradient-usa-can);color:var(--text-light);padding:120px 0 80px;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(212,175,55,0.15) 0%,transparent 50%);pointer-events:none}.hero-title{font-size:2.8rem;font-weight:800;line-height:1.2;text-shadow:0 2px 4px rgba(0,0,0,0.3)}.hero-img{border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,0.25);transition:transform 0.3s}.hero-img:hover{transform:scale(1.02)}.section-title{font-weight:700;position:relative;padding-bottom:12px;margin-bottom:30px}.section-title::after{content:'';position:absolute;bottom:0;left:0;width:60px;height:4px;background:var(--accent-gold);border-radius:2px}.section-title.text-center::after{left:50%;transform:translateX(-50%)}.card-custom{background-color:var(--surface);border:1px solid var(--border);border-radius:12px;transition:all 0.3s ease;box-shadow:0 4px 6px rgba(0,0,0,0.02);overflow:hidden}.card-custom:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(0,0,0,0.08)}.group-badge{font-size:1.1rem;font-weight:700;background:var(--usa-blue);color:var(--text-light);padding:6px 15px;border-radius:6px}.group-card{border-top:4px solid var(--mex-green)}.group-team-item{border-bottom:1px solid var(--border);padding:10px 0}.group-team-item:last-child{border-bottom:none}.match-card{background:var(--surface);border-left:5px solid var(--can-red)}.score-display{font-size:1.5rem;font-weight:700;color:var(--usa-blue);background:var(--border);padding:2px 12px;border-radius:6px}.guide-box{background:linear-gradient(rgba(0,0,0,0.75),rgba(0,0,0,0.75)),url('https://worldcup-goalf.com.cn/skin/cover/worldcupgoalfcomcn/worldcupgoalfcomcnguide-441.webp');background-size:cover;background-position:center;color:var(--text-light);border-radius:12px;padding:40px}.faq-item{background:var(--surface);border-radius:8px;margin-bottom:12px;border:1px solid var(--border)}.faq-question{font-weight:600;cursor:pointer;padding:15px 20px;display:flex;justify-content:space-between;align-items:center}.faq-answer{padding:0 20px 15px;color:var(--text-muted);border-top:1px solid var(--border);display:none}.table-responsive{background:var(--surface);border-radius:12px;border:1px solid var(--border)}footer{background-color:var(--surface-strong);color:var(--text-light);font-size:0.95rem}footer a{color:var(--text-light);text-decoration:none;transition:color 0.2s}footer a:hover{color:var(--accent-gold)}@media (max-width:768px){.hero-title{font-size:2rem}.guide-box{padding:20px}}