
:root{--nav:#182239;--blue:#3172c8;--green:#279276;--purple:#6954ae;--orange:#e78a35;--red:#d94f57;--yellow:#dfb341;--bg:#f3f6f8;--white:#fff;--text:#29343c;--muted:#6f7c85;--line:#dce5e9;--shadow:0 12px 30px rgba(24,34,57,.1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 system-ui,-apple-system,"Microsoft YaHei",sans-serif}img{display:block;max-width:100%;height:auto}a{text-decoration:none;color:inherit}button,input{font:inherit}.container{width:min(1180px,calc(100% - 34px));margin:auto}.header{height:70px;background:rgba(24,34,57,.98);color:#fff;position:sticky;top:0;z-index:50}.navrow{height:70px;display:flex;align-items:center;gap:18px}.logo img{width:190px;height:54px}.nav{display:flex;gap:5px;flex:1}.nav a{padding:8px 12px;border-radius:9px}.nav a.active,.nav a:hover{background:#fff;color:var(--nav)}.auth{display:flex;gap:8px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;border:0;border-radius:10px;background:var(--blue);color:#fff;font-weight:800;cursor:pointer}.btn.green{background:var(--green)}.btn.orange{background:var(--orange)}.btn.outline{background:transparent;border:1px solid currentColor}.menu{display:none;background:transparent;border:1px solid #ffffff55;color:#fff;padding:8px 12px;border-radius:8px}.hero{padding:45px 0;background:linear-gradient(135deg,#fff 58%,#e9edff)}.hero-grid,.page-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:38px}.hero h1,.page-hero h1{font-size:clamp(36px,5vw,60px);line-height:1.12;margin:10px 0 16px}.lead{font-size:18px;color:var(--muted)}.eyebrow{color:var(--blue);font-size:13px;font-weight:900;letter-spacing:.08em}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.stat{padding:13px;border:1px solid var(--line);background:#fff;border-radius:12px}.stat strong{display:block;font-size:21px}.section{padding:44px 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.copy{padding:18px}.playbox{padding:18px;background:#eef2ff;border-radius:12px;margin-top:12px}.memory-grid{display:grid;grid-template-columns:repeat(4,52px);gap:8px}.memory-card,.number-btn{height:52px;border:0;border-radius:9px;background:var(--purple);color:#fff;font-weight:900;cursor:pointer}.reaction-pad{height:100px;width:100%;border:0;border-radius:12px;background:var(--red);color:#fff;font-weight:900;cursor:pointer}.reaction-pad.ready{background:var(--green)}.logic-options{display:flex;gap:8px}.form-shell{display:grid;grid-template-columns:1fr .75fr;gap:25px}.form-card{background:#fff;padding:26px;border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}.form-tabs{display:flex;gap:8px;margin-bottom:18px}.form-tab{border:1px solid var(--line);padding:10px 14px;background:#fff;border-radius:8px;cursor:pointer}.form-tab.active{background:var(--blue);color:#fff}.form-panel{display:none}.form-panel.active{display:block}.field{margin-bottom:14px}.field label{display:block;font-weight:800;margin-bottom:6px}.field input{width:100%;padding:12px;border:1px solid var(--line);border-radius:9px}.checkline{display:flex;align-items:start;gap:8px;margin:12px 0}.notice{padding:15px 17px;border-left:4px solid var(--yellow);background:#fff8df;color:var(--text);border-radius:8px}.form-message{margin-top:12px;padding:12px;background:#eef5ff;border-radius:8px;min-height:48px}.article-body{max-width:840px;margin:auto;background:#fff;padding:28px;border:1px solid var(--line);border-radius:15px}.article-body p{margin:0 0 16px}.meta,.tags{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:13px}.links{border-top:1px solid var(--line);padding-top:14px;margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}.links 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