/* ========== 乐赛足球 - 全局变量 ========== */
:root{
    --ocean-deep:#00152e;
    --ocean-dark:#001d40;
    --ocean-mid:#002855;
    --ocean:#004285;
    --ocean-bright:#0055a8;
    --ocean-light:#0a6fc4;
    --cyan:#00c8ff;
    --cyan-soft:#4dd8f0;
    --ice:#d4eaf5;
    --ice-soft:#e8f4fc;
    --ice-pale:#f0f7ff;
    --text-dark:#0a1628;
    --text-body:#1e3a5f;
    --text-soft:#4a6a8a;
    --text-muted:#7a9ab8;
    --glass:rgba(255,255,255,0.06);
    --glass-border:rgba(255,255,255,0.1);
    --radius-xl:28px;
    --radius-lg:20px;
    --radius-md:14px;
    --radius-sm:10px;
  }
  
  /* ========== 基础重置 ========== */
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--ocean-deep);color:#fff;line-height:1.6;overflow-x:hidden}
  a{text-decoration:none;color:inherit}
  
  /* ========== 顶部导航 ========== */
  .topbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:0 5%;height:72px;display:flex;align-items:center;justify-content:space-between;background:transparent;transition:all .4s ease}
  .topbar.scrolled{background:rgba(0,21,46,0.92);backdrop-filter:blur(30px);border-bottom:1px solid var(--glass-border);box-shadow:0 4px 40px rgba(0,0,0,0.3)}
  
  .brand{display:flex;align-items:center;gap:14px}
  .brand-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:0 4px 20px rgba(0,200,255,0.3);position:relative}
  .brand-icon img{width:100%;height:100%;object-fit:contain;border-radius:12px;display:block}
  .brand-text{font-size:1.35rem;font-weight:900;letter-spacing:-0.5px;color:#fff}
  .brand-text span{color:var(--cyan);font-weight:800}
  
  .menu{display:flex;align-items:center;gap:36px;list-style:none}
  .menu a{color:rgba(255,255,255,0.65);font-size:0.92rem;font-weight:600;transition:all .3s;position:relative;padding:6px 0}
  .menu a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:2px;background:var(--cyan);border-radius:2px;transition:width .3s ease}
  .menu a:hover{color:#fff}
  .menu a:hover::after{width:100%}
  
  .top-cta{padding:11px 26px;border-radius:100px;background:linear-gradient(135deg,var(--cyan),var(--ocean-light));color:var(--ocean-deep);font-weight:800;font-size:0.85rem;transition:all .4s cubic-bezier(.4,0,.2,1);border:none;cursor:pointer;box-shadow:0 6px 24px rgba(0,200,255,0.25)}
  .top-cta:hover{transform:translateY(-2px);box-shadow:0 12px 35px rgba(0,200,255,0.4)}
  
  /* ========== 首屏 ========== */
  .hero-v2{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;position:relative;padding:120px 5% 80px;text-align:center;overflow:hidden}
  
  /* 动态背景层 */
  .hero-v2 .bg-layer{position:absolute;inset:0;z-index:0}
  .hero-v2 .bg-layer::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 0%,var(--ocean) 0%,var(--ocean-mid) 40%,var(--ocean-deep) 100%)}
  .hero-v2 .bg-layer::after{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300c8ff' fill-opacity='0.025'%3E%3Cpath d='M50 48v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-50V0h-2v4h-4v2h4v4h2V6h4V4h-4zM0 48v-4H-2v4H-6v2h4v4h2v-4h4v-2H0zM0 4V0H-2v4H-6v2h4v4h2V6h4V4H0z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}
  
  /* 光晕装饰 */
  .glow-orb{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;z-index:1}
  .glow-orb.g1{width:500px;height:500px;background:rgba(0,200,255,0.12);top:-10%;left:-5%;animation:orbFloat1 20s ease-in-out infinite}
  .glow-orb.g2{width:400px;height:400px;background:rgba(0,66,133,0.2);bottom:-5%;right:-8%;animation:orbFloat2 25s ease-in-out infinite}
  .glow-orb.g3{width:300px;height:300px;background:rgba(0,200,255,0.08);top:40%;right:15%;animation:orbFloat3 18s ease-in-out infinite}
  @keyframes orbFloat1{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,40px)}}
  @keyframes orbFloat2{0%,100%{transform:translate(0,0)}50%{transform:translate(-25px,-30px)}}
  @keyframes orbFloat3{0%,100%{transform:translate(0,0)}50%{transform:translate(20px,-20px)}}
  
  .hero-content-v2{position:relative;z-index:2;max-width:900px}
  
  /* 标签 */
  .tag{display:inline-flex;align-items:center;gap:10px;padding:10px 22px;background:var(--glass);border:1px solid var(--glass-border);border-radius:100px;font-size:0.85rem;font-weight:600;color:var(--cyan-soft);margin-bottom:32px;backdrop-filter:blur(12px)}
  .tag .dot{width:8px;height:8px;background:var(--cyan);border-radius:50%;animation:dotPulse 2.5s infinite;box-shadow:0 0 12px rgba(0,200,255,0.5)}
  @keyframes dotPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.4)}}
  
  /* 标题 */
  .hero-content-v2 h1{font-size:clamp(3rem,6vw,5.5rem);font-weight:900;line-height:1.05;letter-spacing:-3px;margin-bottom:24px}
  .hero-content-v2 h1 .line1{display:block;background:linear-gradient(135deg,#fff 0%,var(--ice) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
  .hero-content-v2 h1 .line2{display:block;background:linear-gradient(135deg,var(--cyan) 0%,var(--cyan-soft) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-top:4px}
  
  .hero-content-v2 .subtitle{font-size:1.2rem;color:rgba(255,255,255,0.6);max-width:560px;margin:0 auto 48px;line-height:1.8;font-weight:400}
  
  /* CTA按钮组 */
  .cta-group{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
  .cta-main{padding:18px 40px;border-radius:var(--radius-sm);font-weight:800;font-size:1.05rem;display:inline-flex;align-items:center;gap:12px;background:linear-gradient(135deg,var(--cyan),var(--ocean-light));color:var(--ocean-deep);border:none;cursor:pointer;transition:all .4s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 30px rgba(0,200,255,0.3)}
  .cta-main:hover{transform:translateY(-3px);box-shadow:0 15px 45px rgba(0,200,255,0.45)}
  .cta-ghost{padding:18px 40px;border-radius:var(--radius-sm);font-weight:700;font-size:1.05rem;display:inline-flex;align-items:center;gap:12px;background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,0.2);cursor:pointer;transition:all .4s cubic-bezier(.4,0,.2,1);backdrop-filter:blur(10px)}
  .cta-ghost:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.4);transform:translateY(-3px)}
  
  /* 实时比分条 */
  .live-ticker{position:relative;z-index:2;width:100%;max-width:1100px;margin-top:60px}
  .ticker-label{display:flex;align-items:center;gap:10px;font-size:0.8rem;font-weight:700;color:var(--cyan);text-transform:uppercase;letter-spacing:2px;margin-bottom:16px;padding-left:8px}
  .ticker-label .live-dot{width:6px;height:6px;background:#ff4757;border-radius:50%;animation:liveBlink 1.5s infinite}
  @keyframes liveBlink{0%,100%{opacity:1}50%{opacity:.3}}
  
  .ticker-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
  .tcard{background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius-md);padding:20px;backdrop-filter:blur(16px);transition:all .4s ease}
  .tcard:hover{background:rgba(255,255,255,0.1);transform:translateY(-4px);border-color:rgba(255,255,255,0.2)}
  .tcard-league{font-size:0.72rem;color:var(--cyan-soft);font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:12px}
  .tcard-teams{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
  .tcard-team{display:flex;align-items:center;gap:10px;font-weight:700;font-size:0.95rem}
  .tcard-team img{width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,0.1)}
  .tcard-score{font-size:1.4rem;font-weight:900;color:#fff;letter-spacing:2px}
  .tcard-score .live{color:var(--cyan)}
  .tcard-meta{display:flex;justify-content:space-between;font-size:0.75rem;color:rgba(255,255,255,0.45);font-weight:500}
  .tcard-meta .time{color:var(--cyan-soft)}
  
  /* ========== 功能特性区 ========== */
  .features-v2{padding:120px 5%;position:relative;overflow:hidden}
  .features-v2::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--ocean),transparent)}
  .features-v2 .glow-orb.g4{width:600px;height:600px;background:rgba(0,200,255,0.05);top:20%;left:-20%;filter:blur(100px)}
  
  .features-header{max-width:1200px;margin:0 auto 70px;display:flex;justify-content:space-between;align-items:flex-end;gap:40px}
  .features-header h2{font-size:clamp(2rem,4vw,3rem);font-weight:900;letter-spacing:-1.5px;line-height:1.15}
  .features-header h2 span{display:block;color:var(--cyan)}
  .features-header p{color:rgba(255,255,255,0.5);font-size:1.05rem;max-width:380px;line-height:1.7}
  
  .features-grid-v2{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .feat-card{background:linear-gradient(180deg,rgba(255,255,255,0.04) 0%,rgba(255,255,255,0.01) 100%);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:40px 32px;transition:all .5s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}
  .feat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--cyan),transparent);opacity:0;transition:opacity .5s ease}
  .feat-card:hover{border-color:rgba(255,255,255,0.2);transform:translateY(-8px);box-shadow:0 30px 60px rgba(0,0,0,0.3)}
  .feat-card:hover::before{opacity:1}
  
  .feat-num{position:absolute;top:20px;right:24px;font-size:3rem;font-weight:900;color:rgba(255,255,255,0.03);line-height:1}
  .feat-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:24px;position:relative}
  .feat-card:nth-child(1) .feat-icon{background:linear-gradient(135deg,var(--cyan),var(--ocean-light));color:var(--ocean-deep);box-shadow:0 8px 25px rgba(0,200,255,0.2)}
  .feat-card:nth-child(2) .feat-icon{background:linear-gradient(135deg,#ff6b6b,#ee5a5a);color:#fff;box-shadow:0 8px 25px rgba(255,107,107,0.2)}
  .feat-card:nth-child(3) .feat-icon{background:linear-gradient(135deg,#4ecdc4,#44a08d);color:#fff;box-shadow:0 8px 25px rgba(78,205,196,0.2)}
  .feat-card:nth-child(4) .feat-icon{background:linear-gradient(135deg,#a855f7,#7c3aed);color:#fff;box-shadow:0 8px 25px rgba(168,85,247,0.2)}
  .feat-card:nth-child(5) .feat-icon{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;box-shadow:0 8px 25px rgba(245,158,11,0.2)}
  .feat-card:nth-child(6) .feat-icon{background:linear-gradient(135deg,#ec4899,#db2777);color:#fff;box-shadow:0 8px 25px rgba(236,72,153,0.2)}
  
  .feat-card h3{font-size:1.15rem;font-weight:800;margin-bottom:12px;color:#fff}
  .feat-card p{font-size:0.92rem;color:rgba(255,255,255,0.5);line-height:1.8}
  
  /* ========== 下载区 ========== */
  .download-v2{padding:120px 5%;position:relative}
  .download-v2::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--ocean),transparent)}
  
  .download-header{text-align:center;margin-bottom:70px}
  .download-header h2{font-size:clamp(2rem,4vw,3rem);font-weight:900;letter-spacing:-1.5px;margin-bottom:16px}
  .download-header h2 span{color:var(--cyan)}
  .download-header p{color:rgba(255,255,255,0.5);font-size:1.05rem}
  
  .download-grid-v2{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
  
  .dl-card{background:linear-gradient(180deg,rgba(255,255,255,0.04) 0%,rgba(255,255,255,0.01) 100%);border:1px solid var(--glass-border);border-radius:var(--radius-xl);padding:48px 40px;transition:all .5s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;display:flex;flex-direction:column}
  .dl-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--cyan),var(--ocean-light));opacity:0;transition:opacity .5s ease}
  .dl-card:hover{border-color:rgba(255,255,255,0.2);transform:translateY(-6px);box-shadow:0 30px 60px rgba(0,0,0,0.3)}
  .dl-card:hover::before{opacity:1}
  
  .dl-top{display:flex;align-items:center;gap:20px;margin-bottom:28px}
  .dl-icon{width:64px;height:64px;border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;position:relative;overflow:hidden;flex-shrink:0}
  .dl-card:nth-child(1) .dl-icon{background:linear-gradient(135deg,var(--cyan),var(--ocean-light));color:var(--ocean-deep);box-shadow:0 10px 30px rgba(0,200,255,0.2)}
  .dl-card:nth-child(2) .dl-icon{background:linear-gradient(135deg,#4ade80,#22c55e);color:var(--ocean-deep);box-shadow:0 10px 30px rgba(74,222,128,0.2)}
  .dl-card:nth-child(3) .dl-icon{background:linear-gradient(135deg,#a855f7,#7c3aed);color:#fff;box-shadow:0 10px 30px rgba(168,85,247,0.2)}
  .dl-card:nth-child(4) .dl-icon{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;box-shadow:0 10px 30px rgba(245,158,11,0.2)}
  
  .dl-title-group h3{font-size:1.3rem;font-weight:800;color:#fff;margin-bottom:4px}
  .dl-title-group .dl-ver{font-size:0.85rem;color:rgba(255,255,255,0.4);font-weight:500}
  
  .dl-links{display:flex;flex-direction:column;gap:10px;margin-bottom:28px;flex:1}
  .dl-links a{display:flex;align-items:center;justify-content:center;padding:14px 20px;border-radius:var(--radius-sm);background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);color:rgba(255,255,255,0.85);font-weight:700;font-size:0.9rem;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}
  .dl-links a::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--cyan),var(--ocean-light));transform:translateX(-101%);transition:transform .4s ease;z-index:0}
  .dl-links a span{position:relative;z-index:1;transition:color .4s ease}
  .dl-links a:hover::before{transform:translateX(0)}
  .dl-links a:hover{color:var(--ocean-deep);border-color:transparent}
  
  .dl-qr{margin-top:auto;padding-top:24px;border-top:1px solid var(--glass-border);text-align:center}
  .dl-qr-box{width:110px;height:110px;background:rgba(255,255,255,0.05);border-radius:12px;margin:0 auto 10px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,0.1);overflow:hidden}
  .dl-qr-box img{width:100%;height:100%;object-fit:contain}
  .dl-qr-text{font-size:0.75rem;color:rgba(255,255,255,0.35);font-weight:500}
  
  .wap-cta{text-align:center;margin-top:50px}
  .wap-cta a{display:inline-flex;align-items:center;gap:10px;padding:16px 36px;border-radius:100px;border:1.5px solid rgba(255,255,255,0.2);color:rgba(255,255,255,0.8);font-weight:700;font-size:0.95rem;transition:all .4s ease}
  .wap-cta a:hover{background:rgba(0,200,255,0.1);border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
  
  /* ========== 页脚 ========== */
  .footer-v2{padding:60px 5% 40px;border-top:1px solid var(--glass-border);position:relative;background:var(--ocean-deep)}
  .footer-v2::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),var(--ocean),transparent)}
  
  .footer-inner{max-width:1200px;margin:0 auto}
  .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:32px}
  .footer-brand .fb-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}
  .footer-brand .fb-icon img{width:100%;height:100%;object-fit:contain;border-radius:10px;display:block}
  .footer-brand .fb-name{font-size:1.2rem;font-weight:900;color:#fff}
  .footer-brand .fb-name span{color:var(--cyan)}
  
  .footer-links-v2{display:flex;justify-content:center;gap:36px;margin-bottom:32px;flex-wrap:wrap}
  .footer-links-v2 a{color:rgba(255,255,255,0.5);font-size:0.92rem;font-weight:600;transition:all .3s;position:relative}
  .footer-links-v2 a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--cyan);transition:width .3s ease;border-radius:1px}
  .footer-links-v2 a:hover{color:#fff}
  .footer-links-v2 a:hover::after{width:100%}
  
  .footer-copy-v2{text-align:center;color:rgba(255,255,255,0.35);font-size:0.82rem;line-height:2.2;font-weight:500}
  .footer-copy-v2 a{color:rgba(255,255,255,0.35);transition:color .3s}
  .footer-copy-v2 a:hover{color:var(--cyan)}
  
  .footer-badges-v2{margin-top:28px;display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
  .footer-badges-v2 img{border-radius:6px;opacity:.5;transition:opacity .3s;filter:grayscale(50%)}
  .footer-badges-v2 img:hover{opacity:.8;filter:grayscale(0%)}
  
  /* ========== 响应式 ========== */
  @media(max-width:1024px){
    .hero-v2{padding-top:140px}
    .ticker-cards{grid-template-columns:1fr}
    .features-grid-v2{grid-template-columns:repeat(2,1fr)}
    .download-grid-v2{grid-template-columns:1fr}
    .features-header{flex-direction:column;align-items:flex-start;gap:16px}
  }
  
  @media(max-width:768px){
    .menu{display:none}
    .hero-content-v2 h1{font-size:2.4rem;letter-spacing:-1px}
    .features-grid-v2{grid-template-columns:1fr}
    .dl-card{padding:36px 28px}
  }
  
  /* 滚动显示 */
  .reveal{opacity:0;transform:translateY(50px);transition:all .8s cubic-bezier(.4,0,.2,1)}
  .reveal.active{opacity:1;transform:translateY(0)}
  .reveal-delay-1{transition-delay:.1s}
  .reveal-delay-2{transition-delay:.2s}
  .reveal-delay-3{transition-delay:.3s}