:root{--bg:#07101d;--panel:#0d1828;--panel2:#122338;--text:#eef7ff;--muted:#a9bdd0;--cyan:#13d8e6;--amber:#f3b34a;--red:#ff4e63;--line:rgba(255,255,255,.12);--shadow:0 18px 45px rgba(0,0,0,.36);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at top left,#113d51 0,#07101d 36%,#050912 100%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}video{max-width:100%;display:block}.wrap{width:min(1180px,92vw);margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(5,10,18,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}.brand{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:.08em}.brand img{width:42px;height:42px;border-radius:12px;box-shadow:0 0 22px rgba(19,216,230,.36)}.nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.nav a{font-size:14px;color:#d9eff7;padding:8px 12px;border-radius:999px}.nav a:hover,.nav a.active{background:rgba(19,216,230,.13);color:#fff}.searchbar{padding:0 0 16px}.fake-search{display:flex;gap:10px;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:18px;padding:8px;box-shadow:var(--shadow)}.fake-search input{flex:1;background:transparent;border:0;color:var(--text);outline:0;padding:10px 14px;font-size:15px}.fake-search button,.btn{border:0;background:linear-gradient(135deg,var(--cyan),#3a77ff);color:#02111c;padding:10px 18px;border-radius:14px;font-weight:800;cursor:pointer}.hero{position:relative;min-height:640px;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,9,18,.92),rgba(5,9,18,.58),rgba(5,9,18,.18)),url('../images/hero-racing.webp') center/cover no-repeat}.hero .wrap{position:relative;z-index:1;padding:96px 0}.eyebrow{display:inline-flex;gap:8px;align-items:center;border:1px solid rgba(19,216,230,.32);background:rgba(19,216,230,.08);color:#b8fbff;padding:7px 13px;border-radius:999px;font-size:14px}.hero h1{font-size:clamp(38px,7vw,78px);line-height:1.08;margin:22px 0 18px;max-width:860px}.lead{font-size:clamp(17px,2vw,22px);color:#d7e6f0;max-width:760px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0}.ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid var(--line)}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:850px;margin-top:34px}.metric{background:rgba(7,16,29,.72);border:1px solid var(--line);border-radius:18px;padding:16px}.metric strong{font-size:28px;color:#fff}.metric span{display:block;color:var(--muted);font-size:13px}.section{padding:72px 0}.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px}.section h2{font-size:clamp(28px,4vw,46px);line-height:1.18;margin:0}.section-title p{max-width:560px;color:var(--muted);margin:0}.grid{display:grid;gap:20px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.card{background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h3{margin:0 0 10px;font-size:22px}.card p{color:var(--muted);margin:0 0 14px}.tagline{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.tagline span,.tag{font-size:12px;color:#c7f9ff;background:rgba(19,216,230,.10);border:1px solid rgba(19,216,230,.24);border-radius:999px;padding:5px 9px}.media-card{padding:0;overflow:hidden}.thumb{position:relative;aspect-ratio:16/10;background:#101927;overflow:hidden}.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}.thumb:after{content:"▶";position:absolute;left:50%;top:50%;translate:-50% -50%;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:rgba(19,216,230,.82);color:#02111c;font-weight:900;opacity:0;transform:scale(.86);transition:.25s}.media-card:hover .thumb img{transform:scale(1.05)}.media-card:hover .thumb:after{opacity:1;transform:scale(1)}.media-body{padding:18px}.meta{display:flex;gap:13px;flex-wrap:wrap;color:#91aabd;font-size:13px}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:center}.feature-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}.experts .avatar{width:62px;height:62px;border-radius:20px;background:linear-gradient(135deg,var(--cyan),var(--amber));display:grid;place-items:center;color:#06101e;font-weight:900;font-size:24px;margin-bottom:14px}.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.logo-tile{border:1px solid var(--line);background:rgba(255,255,255,.055);border-radius:16px;padding:17px;text-align:center;color:#dbefff;font-weight:800}.faq details{border:1px solid var(--line);border-radius:18px;padding:16px 18px;background:rgba(255,255,255,.045)}.faq details+details{margin-top:12px}.faq summary{cursor:pointer;font-weight:800}.review{position:relative}.review:before{content:"“";position:absolute;right:18px;top:8px;font-size:62px;color:rgba(19,216,230,.18)}.breadcrumbs{color:#93aabd;font-size:14px;margin-bottom:18px}.page-hero{padding:70px 0 38px;background:linear-gradient(180deg,rgba(19,216,230,.10),transparent)}.page-hero h1{font-size:clamp(34px,5vw,58px);margin:0 0 14px}.json-block{white-space:pre-wrap;overflow:auto;font-size:12px;color:#bcd3e7;background:#07121f;border:1px solid var(--line);border-radius:18px;padding:16px}.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:18px}.qr-row{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.qr-row img{width:112px;border-radius:14px;border:1px solid var(--line)}.share{display:flex;gap:10px;flex-wrap:wrap}.share button{background:rgba(255,255,255,.075);color:#e8f8ff;border:1px solid var(--line);border-radius:999px;padding:9px 13px;cursor:pointer}.site-footer{border-top:1px solid var(--line);background:#040812;padding:42px 0;color:#a9bdd0}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:22px}.noise-zone{display:none!important}.video-shell{position:relative;background:#060b13;border:1px solid var(--line);border-radius:22px;overflow:hidden}.video-shell video{width:100%;aspect-ratio:16/9;background:linear-gradient(135deg,#0b1b2c,#123b4d)}.notice{padding:12px 14px;border-radius:15px;background:rgba(243,179,74,.12);border:1px solid rgba(243,179,74,.35);color:#ffe0a6}.tool-card input,.tool-card select{width:100%;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.06);color:#fff;padding:10px;margin:6px 0 12px}.mini-logo{width:24px;height:24px;border-radius:8px;display:inline-block;vertical-align:middle;margin-right:6px}@media(max-width:900px){.grid-3,.grid-4,.grid-2,.split,.footer-grid,.contact-box,.metrics{grid-template-columns:1fr}.hero{min-height:auto}.hero .wrap{padding:70px 0}.nav{gap:4px}.nav a{padding:7px 8px}.logos{grid-template-columns:repeat(2,1fr)}.section{padding:50px 0}.topbar{align-items:flex-start;flex-direction:column}.fake-search{border-radius:15px}.fake-search button{padding:9px 12px}}

/* SEO & EEAT enhancement */
.thumb .video-mini{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;background:#101927}
.thumb .play-label{position:absolute;left:50%;top:50%;translate:-50% -50%;width:62px;height:62px;border-radius:50%;display:grid;place-items:center;background:rgba(19,216,230,.88);color:#02111c;font-weight:900;opacity:0;transform:scale(.86);transition:.25s;pointer-events:none;box-shadow:0 12px 32px rgba(0,0,0,.28)}
.media-card:hover .thumb .play-label,.media-card.is-ready .thumb .play-label{opacity:1;transform:scale(1)}
.eeat-panel{border:1px solid rgba(19,216,230,.28);background:linear-gradient(180deg,rgba(19,216,230,.08),rgba(255,255,255,.035));border-radius:24px;padding:24px;box-shadow:var(--shadow)}
.eeat-table{width:100%;border-collapse:collapse;margin-top:12px;color:#d9eff7;font-size:14px}.eeat-table th,.eeat-table td{border-bottom:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}.eeat-table th{color:#b8fbff;width:28%}.source-note{font-size:13px;color:#a9bdd0;margin-top:12px}.updated-badge{display:inline-block;border:1px solid rgba(243,179,74,.35);background:rgba(243,179,74,.12);color:#ffe0a6;border-radius:999px;padding:4px 10px;font-size:12px;margin-left:8px}
@media(max-width:900px){.thumb .play-label{opacity:1;width:54px;height:54px}.eeat-table th,.eeat-table td{display:block;width:100%;padding:9px 0}.eeat-panel{padding:18px}}