:root{color-scheme:dark;--line:#ffffff14;--red:#ff6a79}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#0d0f16;color:#ebedf5;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}header,main,footer{max-width:1240px;margin:auto}header{height:94px;display:flex;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.brand{font-size:17px;font-weight:700;letter-spacing:2px}.brand>span{color:var(--red)}.brand small{border-left:1px solid #ffffff25;margin-left:16px;padding-left:16px;font-size:12px;font-weight:400;letter-spacing:2px;color:#abb0c1}.edition{margin-left:auto;font:9px monospace;letter-spacing:2px;color:#686e82}button{border:1px solid #ffffff20;border-radius:10px;background:#191d28;color:#b7bfd3;width:34px;height:34px;cursor:pointer}.hero{display:grid;grid-template-columns:39% 61%;min-height:520px;align-items:center;padding:28px 0 18px}.intro{padding:16px 0}.eyebrow{font:9px monospace;letter-spacing:2px;color:#c58091}h1{font-weight:500;font-size:clamp(38px,4vw,58px);letter-spacing:-2px;line-height:1.22;margin:25px 0 22px}h1>span{color:#ff8896}.intro p{font-size:14px;color:#949aaf;line-height:1.8}.jump{display:inline-flex;gap:30px;align-items:center;border:1px solid #ff89942f;border-radius:11px;background:#ff77880a;padding:13px 19px;font-size:12px;margin-top:20px}.jump span{color:var(--red)}.scene-wrap{height:480px;position:relative;border:1px solid #ffffff10;border-radius:24px;overflow:hidden;background:#10141f}#world,.fallback{position:absolute;inset:0}#world{touch-action:none}.fallback{background:radial-gradient(ellipse at 50% 55%,#543449,transparent 60%)}canvas{display:block}.scene-caption{position:absolute;bottom:20px;left:24px;right:24px;display:flex;justify-content:space-between;font-size:10px;color:#8b95ad;pointer-events:none}.scene-caption i{display:inline-block;width:5px;height:5px;background:#ff829a;border-radius:50%;margin-right:7px}.section-label{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#a8adc0;margin:22px 0 16px}.section-label>span{font:9px monospace;color:#646d83;letter-spacing:1.5px}nav{display:grid;grid-template-columns:1fr 1fr;gap:18px}.card{display:flex;align-items:center;gap:20px;padding:25px;border:1px solid #ffffff13;border-radius:16px;background:linear-gradient(120deg,#1a1d29,#131720);transition:transform .2s,border-color .2s}.card:hover{transform:translateY(-3px);border-color:#ff89945f}.icon{display:grid;place-items:center;width:46px;height:46px;border:1px solid #ff899423;background:#ff77880b;border-radius:13px;font-size:25px;color:#ff9ca9}h2{font-size:17px;font-weight:500;margin:0 0 8px}.card p{font-size:12px;color:#80899f;margin:0}.arrow{margin-left:auto;color:#969eb4;font-size:24px}footer{display:flex;justify-content:space-between;padding:28px 0;font-size:10px;letter-spacing:1px;color:#535e74}a:focus-visible,button:focus-visible,#world:focus-visible{outline:2px solid #ff8b9b;outline-offset:4px}@media(max-width:1320px){header,main,footer{margin-left:40px;margin-right:40px}}@media(max-width:700px){header,main,footer{margin-left:22px;margin-right:22px}header{height:76px}.brand{font-size:14px}.brand small{font-size:10px;margin-left:10px;padding-left:10px}.edition{display:none}button{margin-left:auto}.hero{grid-template-columns:1fr;padding-top:14px;gap:16px}.intro{padding:12px 0 0}.eyebrow{font-size:7px}h1{font-size:36px;margin:15px 0 12px}h1 br{display:none}h1 span{margin-left:5px}.intro p{font-size:12px;margin:0}.jump{display:none}.scene-wrap{height:340px;border-radius:19px}.scene-caption{left:16px;right:16px;bottom:15px;font-size:9px}.section-label{margin-top:10px}nav{grid-template-columns:1fr;gap:12px}.card{padding:18px;gap:15px}h2{font-size:16px}.card p{font-size:11px}.icon{width:40px;height:40px}footer{font-size:8px;padding:24px 0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.board-help{margin-top:16px;border:1px solid #ffffff14;border-radius:14px;background:#131720;padding:0 20px;font-size:12px;color:#aab2c5;line-height:1.9}.board-help summary{cursor:pointer;padding:15px 0;color:#dce1ed}.board-help summary span{float:right;font-size:10px;color:#858fa5}.board-help[open] summary span{display:none}.board-help ol{padding-left:20px;margin:0 0 14px}.board-help li{margin:8px 0}.board-help strong{color:#e3e7f2;font-weight:500}.board-help p{border-top:1px solid #ffffff12;padding-top:12px;margin-bottom:18px;color:#949eb4}.board-help summary:focus-visible{outline:2px solid #ff8b9b;outline-offset:3px}
