:root{--bg:#0d0b3b;--bg2:#1a1566;--card:#16124d;--line:#2e2880;--mint:#7ef0d6;--mint2:#3cc9b0;--sun:#ffd84d;--pink:#ff5c8a;--text:#eef0ff;--muted:#b4b8e6}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
body:before{content:"";position:fixed;inset:0;z-index:-1;background:radial-gradient(ellipse at 20% 0%,#2a1f8f 0%,transparent 55%),radial-gradient(ellipse at 90% 30%,#3a2aa855 0%,transparent 50%),var(--bg);}
a{color:var(--mint);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:10;background:#0d0b3bcc;backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#fff}
.brand:hover{text-decoration:none}
.brand svg{width:38px;height:38px}
.brand .bt span{color:var(--mint)}
.links{display:flex;gap:22px;align-items:center;font-weight:600;font-size:15px}
.links a{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:999px;font-weight:700;font-size:15px;border:0;cursor:pointer;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-red{background:#ff2d2d;color:#fff}
.btn-ghost{border:2px solid var(--mint);color:var(--mint)}
.hero{display:grid;grid-template-columns:1.3fr .9fr;gap:40px;align-items:center;padding:72px 0 48px}
.eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--sun);background:#ffd84d1a;border:1px solid #ffd84d55;padding:6px 12px;border-radius:999px}
h1{font-size:clamp(34px,5vw,56px);line-height:1.08;font-weight:900;margin:18px 0 16px;letter-spacing:-.02em}
h1 em{font-style:normal;color:var(--mint)}
.lead{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:560px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-art{max-width:360px;width:100%;margin:0 auto;filter:drop-shadow(0 20px 40px #0008)}
.hero-art svg{width:100%;height:auto;display:block}
section{padding:48px 0}
h2{font-size:clamp(26px,3.4vw,36px);font-weight:900;letter-spacing:-.01em;margin-bottom:8px}
.sub{color:var(--muted);margin-bottom:28px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;display:block;color:var(--text);transition:.15s}
.card:hover{border-color:var(--mint);text-decoration:none;transform:translateY(-2px)}
.card h3{font-size:20px;font-weight:800;margin-bottom:6px}
.card p{color:var(--muted);font-size:14px}
.pill{display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;background:#7ef0d61a;color:var(--mint);margin-top:12px}
.pill.v{background:#ff2d2d22;color:#ff8a8a}
.series{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.series .card{padding:24px}
.ico{font-size:28px}
.videos{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.vid{aspect-ratio:16/9;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#000}
.vid iframe{width:100%;height:100%;border:0;display:block}
.yt{position:relative;display:block;width:100%;padding:0;cursor:pointer;margin-top:14px}
.yt img{width:100%;height:100%;object-fit:cover;display:block;opacity:.9}
.yt:hover img{opacity:1}
.play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:72px;height:50px;border-radius:14px;background:#ff2d2d;color:#fff;font-size:22px;display:grid;place-items:center;box-shadow:0 8px 24px #0008}
footer{border-top:1px solid var(--line);padding:32px 0 48px;color:var(--muted);font-size:14px;margin-top:40px}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.crumb{font-size:14px;color:var(--muted);padding-top:28px}
.page-h{padding:18px 0 8px}
.meta{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 6px}
.meta span{font-size:13px;background:var(--card);border:1px solid var(--line);padding:5px 12px;border-radius:999px;color:var(--muted)}
.layout{display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start}
.toc{position:sticky;top:84px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;font-size:14px}
.toc b{display:block;margin-bottom:8px}
.toc a{display:block;color:var(--muted);padding:4px 0}
.part h2{font-size:24px;margin:34px 0 14px;padding-top:8px}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden}
summary{cursor:pointer;padding:16px 18px;font-weight:700;list-style:none;display:flex;gap:12px}
summary::-webkit-details-marker{display:none}
summary:before{content:"Q";flex:none;width:26px;height:26px;border-radius:8px;background:var(--sun);color:#1a1566;display:grid;place-items:center;font-weight:900;font-size:13px}
details[open] summary{border-bottom:1px solid var(--line)}
.ans{padding:16px 18px 18px 56px;color:#d7daf7}
.tips{background:linear-gradient(135deg,#ffd84d14,#7ef0d614);border:1px solid #ffd84d44;border-radius:16px;padding:22px;margin-top:28px}
.tips h2{font-size:22px}
.tips li{margin:8px 0 0 20px}
.box{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;margin-top:22px}
@media (max-width:860px){.hero{grid-template-columns:1fr;padding-top:40px}.hero-art{max-width:220px;order:-1}.series{grid-template-columns:1fr}.videos{grid-template-columns:1fr}.layout{grid-template-columns:1fr}.toc{position:static}.links a.hide{display:none}}
@media (max-width:520px){.links{gap:12px}.links a:not(.btn){display:none}.btn{padding:9px 14px;font-size:14px}.ans{padding-left:18px}}

.pt0{padding-top:8px}
.home-hero{padding:64px 0 24px;max-width:860px}
.home-hero h1{font-size:clamp(36px,5.4vw,62px)}
.hsearch{margin-top:26px;width:100%;max-width:640px;display:flex;align-items:center;gap:12px;background:#ffffff0d;border:1px solid #3a3490;color:#a9addc;border-radius:16px;padding:16px 18px;font:inherit;font-size:16px;cursor:text;text-align:left}
.hsearch:hover{border-color:var(--mint)}
.hsearch svg{width:20px;height:20px;flex:none}
.hsearch span{flex:1}
.hsearch kbd{font-family:inherit;font-size:12px;border:1px solid #3a3490;border-radius:6px;padding:2px 7px}
.qchips{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:16px;font-size:14px;color:var(--muted)}
.qchips a{border:1px solid var(--line);background:var(--card);color:var(--text);padding:5px 12px;border-radius:999px;font-weight:600}
.qchips a:hover{border-color:var(--mint);text-decoration:none}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:26px}
.stats div{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 18px}
.stats b{display:block;font-size:26px;font-weight:900;color:#fff;letter-spacing:-.01em}
.stats span{font-size:13px;color:var(--muted)}
.stats.big{margin:12px 0 8px}
.hub-hero{padding:18px 0 8px;max-width:900px}
.shead{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.more{font-weight:700;margin-bottom:28px;white-space:nowrap}
.sgrid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.stile{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px 18px;color:var(--text);display:flex;flex-direction:column;gap:6px;transition:.15s}
.stile:hover{border-color:var(--mint);transform:translateY(-3px);text-decoration:none}
.stile-ic{font-size:30px}
.stile b{font-size:18px}
.stile small{color:var(--muted);font-size:13.5px;line-height:1.45}
.cgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.ccard{position:relative;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px;color:var(--text);display:flex;flex-direction:column;gap:10px;overflow:hidden;transition:.15s}
.ccard:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--tc,var(--mint))}
.ccard:hover{border-color:var(--tc,var(--mint));transform:translateY(-3px);text-decoration:none}
.ccard-top{display:flex;justify-content:space-between;align-items:center}
.ccard-ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:26px;background:color-mix(in srgb,var(--tc,#7ef0d6) 18%,transparent)}
.ccard-tag{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--tc,var(--mint));border:1px solid color-mix(in srgb,var(--tc,#7ef0d6) 50%,transparent);padding:3px 10px;border-radius:999px}
.ccard h3{font-size:21px;font-weight:800;margin-top:4px}
.ccard p{color:var(--muted);font-size:14.5px;flex:1}
.ccard-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:12.5px;color:#d0d3f5}
.ccard-meta span{background:#ffffff0d;border-radius:8px;padding:4px 9px}
.ccard-cta{font-weight:800;color:var(--tc,var(--mint));margin-top:4px}
.tgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}
.tgrid.one{grid-template-columns:1fr;margin-top:14px}
.tgrid.two{grid-template-columns:1fr 1fr}
.tcard{display:flex;align-items:center;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 18px;color:var(--text);transition:.15s}
.tcard:hover{border-color:var(--mint);text-decoration:none;transform:translateY(-2px)}
.tcard-ic{flex:none;width:46px;height:46px;border-radius:12px;background:#7ef0d61a;display:grid;place-items:center;font-size:22px}
.tcard b{display:block;font-size:16px}
.tcard small{display:block;color:var(--muted);font-size:13.5px;line-height:1.4;margin-top:2px}
.tcard>span:nth-child(2){flex:1}
.tcard-go{font-weight:700;color:var(--mint);font-size:14px;white-space:nowrap}
.iv-split{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:start}
.cochips{display:flex;flex-wrap:wrap;gap:10px}
.cochips a{background:var(--card);border:1px solid var(--line);color:#fff;font-weight:800;padding:12px 18px;border-radius:14px;font-size:15px}
.cochips a:hover{border-color:var(--mint);text-decoration:none}
.cochips a.plus{color:var(--mint);border-style:dashed}
.videos.one{grid-template-columns:1fr}
.videos.one .yt{margin-top:0}
.band{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;background:linear-gradient(120deg,#2a1f8f,#16124d);border:1px solid #3a3490;border-radius:22px;padding:30px 32px}
.band h2{margin:0}
.band p{color:var(--muted);margin-top:6px}
main.wrap{max-width:1240px}
@media (max-width:1000px){.sgrid{grid-template-columns:repeat(3,1fr)}.iv-split{grid-template-columns:1fr}}
@media (max-width:640px){.sgrid{grid-template-columns:1fr 1fr}.stats{grid-template-columns:1fr 1fr}.cgrid,.tgrid{grid-template-columns:1fr}.tcard-go{display:none}.home-hero{padding-top:36px}}