:root{--bg:#f5f7fb;--ink:#131722;--muted:#707888;--line:rgba(19,23,34,.1);--accent:#2f6bff;--cyan:#13c6de;--dark:#10131c;--font:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.container{width:min(1160px,92vw);margin:0 auto}.header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.84);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;min-width:190px}.brand-logo{width:38px;height:38px;border-radius:12px;overflow:hidden;display:block}.brand-logo img{width:100%;height:100%;object-fit:cover}.brand 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.wheel{position:absolute;bottom:6px;width:45px;height:45px;border:6px solid #121927;border-radius:50%;box-shadow:inset 0 0 0 1px #8fa2b1,0 0 0 1px rgba(255,255,255,.45)}.cover-bike .wheel.left{left:5px}.cover-bike .wheel.right{right:5px}.cover-bike .bike-body{position:absolute;left:31px;right:29px;bottom:40px;height:32px;background:linear-gradient(150deg,#d6ff63,#29c4e0);clip-path:polygon(0 65%,24% 15%,58% 22%,74% 0,100% 33%,77% 75%,25% 100%)}.cover-bike .bike-light{position:absolute;right:5px;bottom:62px;width:17px;height:10px;border-radius:10px 10px 2px 2px;background:#eaffbf;box-shadow:0 0 18px #d6ff63}.card-body{padding:17px 18px 20px}.card-title-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.card-title-row h3,.card-body h3{margin:0;font-size:19px;font-weight:700;letter-spacing:-.2px}.card-title-row .arrow{color:var(--accent);opacity:0;transform:translate(-4px,4px);transition:.2s}.activity-card:hover .card-title-row 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86px}.intro-mark span{font-size:20px}.intro-mark small{font-size:7px;letter-spacing:1px}.intro-copy{font-size:13px}.event-grid{grid-template-columns:1fr}.notice{align-items:flex-start;flex-wrap:wrap;margin-bottom:70px}.notice a{margin-left:48px}.footer .container{flex-direction:column}} .cover-moto{background:linear-gradient(145deg,#fff3ee 0%,#e5f7ff 58%,#f5efff);color:#34394a}.cover-moto:before{background:radial-gradient(circle,rgba(255,215,106,.8),transparent 67%)}.cover-moto:after{background:linear-gradient(115deg,rgba(255,255,255,.08),rgba(255,255,255,.04) 45%,rgba(255,255,255,.35))}.cover-moto .cover-kicker{color:#8a7890}.cover-moto .cover-title{color:#34394a}.cover-moto .cover-title em{color:#ff7569}.cover-moto .cover-orbit{border-color:rgba(255,117,105,.45)}