:root{--ink:#07111f;--navy:#08182e;--blue:#2462eb;--cyan:#45d7d1;--paper:#f2f6fb;--white:#fff;--muted:#65758b;--line:#d8e3f1;--warm:#ff654a;--radius:8px;--shadow:0 26px 80px rgba(8,26,55,.16)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Avenir Next","PingFang SC","Microsoft YaHei",sans-serif;letter-spacing:0}a{color:inherit;text-decoration:none}button,input{font:inherit}[hidden]{display:none!important}.topbar{height:70px;padding:0 max(24px,calc((100vw - 1240px)/2));display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:center;background:rgba(7,17,31,.96);color:#fff;position:sticky;top:0;z-index:20;backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.12)}.brand{display:flex;align-items:center;gap:10px}.brand span{width:38px;height:38px;display:grid;place-items:center;background:#eaf1ff;color:var(--blue);border-radius:8px;font-size:12px;font-weight:900}.brand b{font-size:14px}.topbar nav{display:flex;gap:26px;color:#9db0c9;font-size:11px;font-weight:800}.topbar nav a:hover{color:#fff}.ghost{justify-self:end;border:1px solid #425875;padding:9px 13px;border-radius:6px;font-size:11px}.hero{height:520px;position:relative;overflow:hidden;background:var(--ink)}.hero>img{width:100%;height:100%;object-fit:cover;object-position:center 44%;opacity:.68}.shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,11,21,.98) 0,rgba(5,17,34,.82) 50%,rgba(5,17,34,.22) 78%),linear-gradient(0deg,rgba(3,10,20,.86),transparent 66%)}.hero-copy{position:absolute;left:max(24px,calc((100vw - 1240px)/2));top:46%;transform:translateY(-50%);max-width:760px;color:#fff}.hero-copy p{margin:0 0 20px;color:#74abff;font-size:11px;font-weight:900}.hero-copy h1{margin:0;font-size:56px;line-height:1.08;letter-spacing:0}.hero-copy h1 em{font-style:normal;color:#95bdff}.hero-copy span{display:block;max-width:650px;margin-top:22px;color:#d7e4f4;font-size:15px;line-height:1.8}.hero-stats{position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:min(1240px,calc(100% - 48px));display:grid;grid-template-columns:repeat(3,1fr);background:rgba(8,24,46,.84);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(18px);color:#fff}.hero-stats div{padding:21px 28px;border-right:1px solid rgba(255,255,255,.13)}.hero-stats div:last-child{border:0}.hero-stats b,.hero-stats span{display:block}.hero-stats b{font-size:22px}.hero-stats span{margin-top:5px;color:#99abc2;font-size:10px}.choice-shell{max-width:1240px;margin:58px auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:22px}.choice{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:34px;position:relative;overflow:hidden}.choice:before{content:"";position:absolute;left:0;top:0;width:100%;height:5px;background:var(--blue)}.choice.partner:before{background:linear-gradient(90deg,var(--cyan),var(--blue))}.choice-head{display:flex;align-items:center;justify-content:space-between;color:#5f7088;font-size:10px;font-weight:900}.choice-head b{font-size:22px;color:#c9d7e9}.choice h2{font-size:35px;margin:18px 0 10px}.lead{color:var(--muted);font-size:13px;line-height:1.75;min-height:68px}.rule-grid,.partner-stats{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);margin:22px 0}.rule-grid div,.partner-stats div{padding:16px;text-align:center;border-right:1px solid var(--line)}.rule-grid div:last-child,.partner-stats div:last-child{border:0}.rule-grid b,.rule-grid span,.partner-stats b,.partner-stats span{display:block}.rule-grid b,.partner-stats b{font-size:18px}.rule-grid span,.partner-stats span{color:var(--muted);font-size:9px;margin-top:5px}.reward-line{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin:22px 0}.reward-line div{padding:17px;background:#f7faff}.reward-line small,.reward-line b{display:block}.reward-line small{font-size:9px;color:var(--muted)}.reward-line b{font-size:13px;margin-top:6px}form{display:grid;gap:13px}label{display:grid;gap:7px;color:#3a4b61;font-size:10px;font-weight:900}input{border:1px solid #cbd8e8;background:#f9fbfe;padding:12px 13px;border-radius:6px;outline:0;color:var(--ink)}input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(36,98,235,.1)}.check{grid-template-columns:18px 1fr;align-items:start;font-weight:500;color:var(--muted);line-height:1.55}.check input{width:16px;height:16px;margin:2px 0 0}button{border:0;border-radius:6px;min-height:48px;padding:12px 16px;background:var(--blue);color:#fff;font-weight:900;cursor:pointer}button:hover{background:#1749bc}button:disabled{opacity:.55;cursor:not-allowed}.status{min-height:18px;margin:0;color:#ad3c2c;font-size:10px}.result{margin-top:22px;padding:22px;border:1px solid #b7cbed;background:#eff5ff}.result small,.result strong{display:block}.result small{color:var(--muted);font-size:9px}.result>strong{font-size:28px;margin:6px 0;color:var(--blue)}.progress{height:8px;background:#d9e6f7;margin:16px 0;overflow:hidden}.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));width:0;transition:.3s}.result p{font-size:11px;color:#42546d;line-height:1.6}.result button{width:100%;margin-top:7px}.result.dark{background:var(--navy);color:#fff;border-color:#223b5d}.partner-code{display:flex;justify-content:space-between;align-items:flex-start}.partner-code strong{font-size:22px;margin-top:5px}.partner-code span{font-size:9px;border:1px solid #3a5375;padding:5px 8px}.dark .partner-stats{border-color:#2b4364}.dark .partner-stats div{border-color:#2b4364}.dark .partner-stats span,.dark p{color:#9fb1c8}.rules{max-width:1192px;margin:0 auto 70px;background:var(--navy);color:#fff;padding:45px;display:grid;grid-template-columns:.72fr 1.28fr;gap:55px}.rules small{color:#6ca7ff;font-size:10px;font-weight:900}.rules h2{font-size:34px;line-height:1.25;margin:15px 0}.rules ol{list-style:none;margin:0;padding:0}.rules li{display:grid;grid-template-columns:125px 1fr;gap:20px;padding:17px 0;border-bottom:1px solid #2a405f}.rules li:last-child{border:0}.rules li b{font-size:12px}.rules li span{color:#a8b7ca;font-size:11px;line-height:1.7}footer{background:#07111f;color:#fff;padding:34px max(24px,calc((100vw - 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@media(max-width:850px){.topbar{grid-template-columns:1fr auto;padding:0 16px}.topbar nav{display:none}.hero{height:530px}.hero-copy{left:24px;right:24px;top:42%}.hero-copy h1{font-size:39px}.hero-copy span{font-size:13px}.hero-stats{grid-template-columns:1fr;width:calc(100% - 28px)}.hero-stats div{display:flex;align-items:center;justify-content:space-between;padding:10px 15px;border-right:0;border-bottom:1px solid rgba(255,255,255,.12)}.hero-stats div:last-child{border:0}.hero-stats span{margin:0}.choice-shell{grid-template-columns:1fr;margin:30px auto;padding:0 14px}.choice{padding:24px}.choice h2{font-size:30px}.lead{min-height:0}.rules{margin:0 14px 40px;padding:28px;grid-template-columns:1fr;gap:18px}.rules h2{font-size:28px}.rules li{grid-template-columns:1fr;gap:6px}footer{flex-direction:column}}@media(max-width:480px){.hero-copy h1{font-size:32px}.hero-copy h1 em{display:inline-block;font-size:clamp(22px,7vw,28px);white-space:nowrap}.rule-grid,.partner-stats{grid-template-columns:1fr}.rule-grid div,.partner-stats div{display:flex;justify-content:space-between;align-items:center;border-right:0;border-bottom:1px solid var(--line)}.reward-line{grid-template-columns:1fr}.choice{padding:20px}.partner-code{flex-direction:column;gap:12px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}