:root{--bg:#090d18;--panel:#11182a;--panel2:#17213a;--line:#2a3859;--text:#f3f7ff;--muted:#aebbd1;--cyan:#4de4ff;--lime:#a8ff60;--gold:#ffd166;--purple:#a98bff;--danger:#ff7697;--radius:18px;--shadow:0 18px 48px #0007}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 70% 0,#192754 0,transparent 34%),linear-gradient(180deg,#090d18,#0d1220 55%,#090d18);color:var(--text);font:16px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--gold);outline-offset:4px}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:#000;padding:8px;z-index:99}.skip:focus{left:8px}
.wrap{width:min(1160px,calc(100% - 36px));margin:auto}
header{position:sticky;top:0;z-index:20;background:#090d18e8;border-bottom:1px solid #263451;backdrop-filter:blur(14px)}
.nav{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:11px;font-weight:850;letter-spacing:.3px}.brand img{width:42px;height:42px}.brand small{display:block;color:var(--cyan);font:600 10px/1 monospace;letter-spacing:1.4px}
nav ul{display:flex;align-items:center;gap:6px;list-style:none;padding:0;margin:0;flex-wrap:wrap}nav a{display:block;padding:9px 12px;color:var(--muted);border-radius:10px}nav a:hover,nav a[aria-current=page]{background:#1a2540;color:#fff}
.button,.button-alt{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 18px;border-radius:12px;font-weight:800;border:1px solid var(--cyan);background:linear-gradient(135deg,var(--cyan),#74ffa7);color:#07101d;box-shadow:0 0 25px #4de4ff30}.button-alt{background:transparent;color:var(--text);border-color:var(--line);box-shadow:none}
.hero{padding:82px 0 54px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:8px;padding:5px 10px;border:1px solid #3b4c70;border-radius:999px;background:#111a2e;color:var(--lime);font:700 13px/1.5 monospace;text-transform:uppercase}
h1{font-size:clamp(40px,6vw,72px);line-height:1.04;margin:20px 0;letter-spacing:-2px}h1 em{font-style:normal;color:var(--cyan);text-shadow:0 0 28px #4de4ff55}
.lead{max-width:680px;color:var(--muted);font-size:19px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}
.stats{display:flex;gap:13px;flex-wrap:wrap}.stat{min-width:118px;border-left:2px solid var(--purple);padding-left:11px}.stat b{display:block;font-size:20px}.stat span{color:var(--muted);font-size:13px}
.hero-art{position:relative}.hero-art:before{content:"QUEST MAP";position:absolute;right:-8px;top:-25px;color:#516184;font:800 13px monospace;letter-spacing:3px}.hero-art img{display:block;border-radius:22px;border:1px solid #33466f;box-shadow:var(--shadow);aspect-ratio:44/35;object-fit:cover}.hero-art .level{position:absolute;left:-22px;bottom:28px;background:#10182b;border:1px solid var(--cyan);padding:10px 14px;border-radius:12px;font:800 13px monospace;box-shadow:0 0 30px #4de4ff33}
section{padding:66px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:26px}.section-head h2{margin:8px 0 0;font-size:clamp(28px,4vw,44px);line-height:1.2}.section-head p{max-width:560px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}
.card,.quest,.faq details,.platform{background:linear-gradient(145deg,#131c30,#0f1627);border:1px solid var(--line);border-radius:var(--radius);padding:23px;box-shadow:0 8px 30px #0003}
.card:hover,.platform:hover{border-color:#4de4ff80;transform:translateY(-3px)}.card,.platform{transition:.2s}.card .icon{font-size:26px}.card h3,.quest h3{margin:12px 0 7px}.card p,.quest p,.platform p{color:var(--muted);margin:0}.card .num{color:var(--purple);font:800 12px monospace}
.quest{position:relative;overflow:hidden}.quest:after{content:attr(data-level);position:absolute;right:12px;top:9px;color:#445274;font:900 42px monospace}.quest label{position:relative;z-index:2;display:flex;align-items:start;gap:12px;cursor:pointer}.quest input{width:20px;height:20px;margin-top:4px;accent-color:var(--lime)}.quest input:checked+span h3{text-decoration:line-through;color:var(--lime)}.save-note{color:var(--gold);font-size:13px;margin-top:15px}
.topic-link{display:flex;justify-content:space-between;align-items:center}.topic-link span:last-child{color:var(--cyan);font-size:22px}
.detail{display:grid;grid-template-columns:.86fr 1.14fr;gap:42px;align-items:center}.detail img{border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow)}.checklist{list-style:none;padding:0}.checklist li{padding:10px 0;border-bottom:1px dashed #2c3853}.checklist li:before{content:"✓";color:var(--lime);margin-right:10px;font-weight:bold}
.platform b{color:var(--cyan);font-family:monospace}.warning{border-left:3px solid var(--gold);padding:14px 18px;background:#ffd16612;color:#dce5f4;border-radius:0 12px 12px 0}
.faq{display:grid;gap:10px}.faq details{padding:0}.faq summary{cursor:pointer;font-weight:800;padding:18px 22px}.faq p{color:var(--muted);padding:0 22px 18px;margin:0}
.page-hero{padding:70px 0 26px}.page-hero h1{font-size:clamp(38px,5vw,62px)}.breadcrumb{color:var(--muted);font-size:14px}.breadcrumb a{color:var(--cyan)}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 25px}.tabs button{font:inherit;color:var(--muted);background:#11192b;border:1px solid var(--line);padding:9px 14px;border-radius:10px;cursor:pointer}.tabs button.active{color:#08101c;background:var(--cyan);border-color:var(--cyan);font-weight:800}.download-item[data-hidden=true]{display:none}
footer{border-top:1px solid #25324d;background:#080c15;padding:48px 0 26px;margin-top:38px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:30px}.footer-grid h3{font-size:14px;color:#fff}.footer-grid ul{list-style:none;padding:0}.footer-grid li{margin:6px 0}.footer-grid a,.footer-grid p{color:var(--muted)}.legal{border-top:1px solid #202b43;margin-top:28px;padding-top:20px;color:#8492aa;font-size:13px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
@media(max-width:900px){.hero,.detail{grid-template-columns:1fr}.hero-art{max-width:680px}.grid,.grid.three{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:660px){header{position:static}.nav{align-items:flex-start;padding:14px 0;flex-direction:column}nav ul{gap:1px}nav a{padding:7px 8px;font-size:14px}.hero{padding-top:50px}.grid,.grid.three,.grid.two{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.section-head{display:block}.hero-art .level{left:8px}section{padding:48px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}