:root{--primary-rgb:0,77,152;--secondary-rgb:200,16,46;--accent-rgb:0,104,71;--page-bg:#f4f6f9;--surface:#ffffff;--surface-strong:#0f172a;--text-main:#1e293b;--text-muted:#64748b;--border-color:#e2e8f0;--na-gradient:linear-gradient(135deg,rgb(0,77,152) 0%,rgb(200,16,46) 50%,rgb(0,104,71) 100%);--na-gradient-light:linear-gradient(135deg,rgba(0,77,152,0.05) 0%,rgba(200,16,46,0.05) 50%,rgba(0,104,71,0.05) 100%);--card-radius:12px}body{background-color:var(--page-bg);color:var(--text-main);font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;overflow-x:hidden;line-height:1.6}@media (min-width:992px){body{display:flex;min-height:100vh}header.sidebar{width:280px;position:fixed;top:0;left:0;bottom:0;background-color:var(--surface-strong);color:#ffffff;z-index:1030;display:flex;flex-direction:column;justify-content:space-between;border-right:1px solid rgba(255,255,255,0.1);box-shadow:4px 0 24px rgba(0,0,0,0.15)}main.content-area{margin-left:280px;width:calc(100% - 280px);flex:1}}@media (max-width:991.98px){header.sidebar{width:100%;background-color:var(--surface-strong);color:#ffffff;position:sticky;top:0;z-index:1030;box-shadow:0 4px 12px rgba(0,0,0,0.1)}main.content-area{width:100%}}.sidebar-brand{padding:1.5rem;background:var(--na-gradient);color:#fff;display:flex;align-items:center;gap:10px}.sidebar-brand img{height:40px;width:auto;border-radius:6px}.sidebar-brand .brand-name{font-size:1.2rem;font-weight:800;letter-spacing:0.5px}.sidebar-menu{list-style:none;padding:1.5rem 1rem;margin:0;flex-grow:1}.sidebar-menu li{margin-bottom:0.5rem}.sidebar-menu a{color:rgba(255,255,255,0.75);text-decoration:none;display:flex;align-items:center;padding:0.75rem 1rem;border-radius:8px;transition:all 0.3s;font-size:0.95rem;font-weight:500}.sidebar-menu a:hover,.sidebar-menu a.active{color:#ffffff;background-color:rgba(255,255,255,0.1);transform:translateX(4px)}.sidebar-menu a i{margin-right:12px;font-size:1.1rem;width:20px;text-align:center}.sidebar-footer{padding:1rem 1.5rem;border-top:1px solid rgba(255,255,255,0.1);font-size:0.8rem;color:rgba(255,255,255,0.5)}.hero-section{background:var(--na-gradient-light);padding:4rem 2rem;position:relative;border-bottom:1px solid var(--border-color)}@media (max-width:768px){.hero-section{padding:2.5rem 1rem}}.hero-badge{display:inline-flex;align-items:center;background:var(--na-gradient);color:#fff;padding:0.4rem 1rem;border-radius:50px;font-size:0.85rem;font-weight:600;margin-bottom:1.5rem}.hero-title h1{font-size:clamp(2rem,4vw,3.2rem);font-weight:900;color:var(--surface-strong);line-height:1.2;margin-bottom:1.5rem}.hero-desc{font-size:1.1rem;color:var(--text-muted);margin-bottom:2rem;max-width:720px}.section-padding{padding:5rem 2rem}@media (max-width:768px){.section-padding{padding:3rem 1rem}}.section-header{margin-bottom:3rem}.section-header h2{font-size:2rem;font-weight:800;color:var(--surface-strong);position:relative;padding-bottom:0.75rem}.section-header h2::after{content:'';position:absolute;bottom:0;left:0;width:60px;height:4px;background:var(--na-gradient);border-radius:2px}.section-header p{color:var(--text-muted);margin-top:0.5rem;font-size:1rem}.custom-card{background-color:var(--surface);border:1px solid var(--border-color);border-radius:var(--card-radius);box-shadow:0 4px 6px -1px rgba(0,0,0,0.05),0 2px 4px -1px rgba(0,0,0,0.03);transition:all 0.3s cubic-bezier(0.4,0,0.2,1);overflow:hidden}.custom-card:hover{transform:translateY(-4px);box-shadow:0 10px 15px -3px rgba(0,0,0,0.08),0 4px 6px -2px rgba(0,0,0,0.04)}.match-card{border-left:5px solid transparent}.match-card.live{border-left-color:rgb(200,16,46)}.match-card.finished{border-left-color:var(--text-muted)}.match-card.scheduled{border-left-color:rgb(0,77,152)}.match-status-badge{font-size:0.75rem;font-weight:700;padding:0.25rem 0.6rem;border-radius:4px}.match-status-badge.live{background-color:rgba(200,16,46,0.1);color:rgb(200,16,46);animation:pulse 1.5s infinite}.match-status-badge.finished{background-color:#f1f5f9;color:var(--text-muted)}.match-status-badge.scheduled{background-color:rgba(0,77,152,0.1);color:rgb(0,77,152)}@keyframes pulse{0%{opacity:1}50%{opacity:0.5}100%{opacity:1}}.group-table th{background-color:var(--surface-strong);color:#fff;font-weight:600}.group-table td{vertical-align:middle}.guide-box{background:linear-gradient(rgba(15,23,42,0.85),rgba(15,23,42,0.95)),url('https://semis-2026worldcup.com.cn/skin/cover/semis2026worldcupcomcn/semis2026worldcupcomcnguide-354.webp') no-repeat center center/cover;color:#fff;border-radius:var(--card-radius);padding:3rem}.accordion-button:not(.collapsed){background-color:rgba(0,77,152,0.05);color:rgb(0,77,152);box-shadow:none}.accordion-button:focus{box-shadow:none;border-color:var(--border-color)}.table-responsive{border-radius:var(--card-radius);overflow:hidden;border:1px solid var(--border-color)}