/* about + course detail */
.ph{position:relative;isolation:isolate;overflow:hidden;color:#fff;background:radial-gradient(800px 400px at 85% 0,#1b3c9a 0%,transparent 60%),linear-gradient(135deg,#0c2a6b,#0a2347 60%,#071733);padding:56px 0 64px}
.ph::before{content:"";position:absolute;inset:0;z-index:-1;background-image:radial-gradient(rgba(255,255,255,.13) 1.5px,transparent 1.6px);background-size:26px 26px;-webkit-mask-image:linear-gradient(90deg,#000,transparent 70%);mask-image:linear-gradient(90deg,#000,transparent 70%)}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:.9rem;color:var(--mute);margin-bottom:18px}
.crumb a:hover{color:var(--lime)}.crumb span::before{content:"/";margin-right:8px;opacity:.5}
.ph h1{font:800 clamp(2.1rem,4.6vw,3.6rem)/1.08 var(--head);letter-spacing:-.02em;margin:0 0 14px;max-width:20ch}
.ph h1 em{font-style:normal;color:var(--lime)}
.ph p.lead{margin:0;max-width:58ch}
.sec{padding:84px 0}.sec.alt{background:#fff}
.sec h2{font:800 clamp(1.8rem,3.4vw,2.6rem)/1.12 var(--head);letter-spacing:-.02em;margin:0 0 10px}
.sec .sub{margin:0 0 38px;color:#4b5a78;line-height:1.65;max-width:58ch}
.sec .stroke{display:block;width:130px;height:14px;margin:0 0 20px}
.tw2{display:grid;grid-template-columns:.95fr 1.05fr;gap:64px;align-items:center}
.tw2 p{color:#4b5a78;line-height:1.8;font-size:1.04rem;margin:0 0 16px}
.st4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
.st4 div{background:#fff;border-radius:18px;padding:20px 16px;text-align:center;box-shadow:0 8px 26px rgba(10,35,71,.08)}
.st4 strong{display:block;font:800 2rem/1 var(--head);color:var(--navy)}.st4 strong b{color:#9fb000}
.st4 span{font-size:.86rem;color:#5a6a88}
.mv{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.mv article{border-radius:26px;padding:38px;position:relative;overflow:hidden}
.mv article:nth-child(1){background:var(--navy);color:#fff}.mv article:nth-child(2){background:var(--lime);color:var(--ink)}
.mv article::after{content:"";position:absolute;right:-50px;top:-50px;width:170px;height:170px;border-radius:50%;border:20px solid rgba(255,255,255,.12)}
.mv .ic{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:var(--lime);color:var(--ink);margin-bottom:18px}
.mv article:nth-child(2) .ic{background:var(--navy);color:var(--lime)}
.mv .ic svg{width:26px;height:26px}
.mv h3{font:800 1.6rem var(--head);margin:0 0 10px}.mv p{margin:0;line-height:1.75;opacity:.9}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.fx{background:#fff;border:1.5px solid #e1e7f2;border-radius:20px;padding:28px;transition:.25s}
.fx:hover{transform:translateY(-5px);border-color:var(--navy);box-shadow:0 18px 38px rgba(10,35,71,.12)}
.fx .ic{width:50px;height:50px;border-radius:14px;background:var(--navy);color:var(--lime);display:grid;place-items:center;margin-bottom:16px}
.fx .ic svg{width:25px;height:25px}
.fx h3{font:700 1.2rem var(--head);margin:0 0 8px}.fx p{margin:0;color:#4b5a78;line-height:1.65;font-size:.96rem}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:f;position:relative}
.flow article{position:relative;background:#fff;border-radius:20px;padding:28px 24px;box-shadow:0 8px 26px rgba(10,35,71,.07)}
.flow article::before{counter-increment:f;content:"0" counter(f);display:block;font:800 2.6rem/1 var(--head);color:var(--lime);-webkit-text-stroke:1.5px var(--navy);margin-bottom:14px}
.flow h3{font:700 1.15rem var(--head);margin:0 0 8px}.flow p{margin:0;color:#4b5a78;line-height:1.6;font-size:.94rem}
.tm4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tm4 a{display:block;background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 8px 26px rgba(10,35,71,.08);transition:.25s}
.tm4 a:hover{transform:translateY(-5px)}
.tm4 img{width:100%;aspect-ratio:1/1.1;object-fit:cover;object-position:50% 18%;display:block}
.tm4 div{padding:16px 18px}.tm4 b{display:block;font:700 1.08rem var(--head)}.tm4 span{color:#5a6a88;font-size:.9rem}
.cta2{background:linear-gradient(120deg,var(--navy),#16399a);border-radius:28px;color:#fff;padding:48px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;position:relative;overflow:hidden}
.cta2::after{content:"";position:absolute;right:-70px;top:-90px;width:260px;height:260px;border-radius:50%;border:28px solid rgba(200,218,46,.25)}
.cta2 h2{color:#fff;margin:0 0 8px}.cta2 p{margin:0;color:var(--mute);max-width:46ch}.cta2 .cta{position:relative;z-index:1}
/* course detail */
.cd{position:relative;isolation:isolate;overflow:hidden;color:var(--tx,#fff);background:linear-gradient(135deg,var(--a),var(--b));padding:52px 0 150px}
.cd::before{content:"";position:absolute;right:-90px;top:-90px;width:380px;height:380px;border-radius:50%;background:rgba(255,255,255,.14);z-index:-1}
.cd::after{content:"";position:absolute;right:140px;bottom:-110px;width:240px;height:240px;border-radius:50%;border:24px solid rgba(255,255,255,.12);z-index:-1}
.cd .crumb{color:inherit;opacity:.85}
.cd h1{font:800 clamp(2rem,4.4vw,3.4rem)/1.08 var(--head);letter-spacing:-.02em;margin:12px 0 14px;max-width:18ch}
.cd .tag{max-width:56ch;line-height:1.7;opacity:.92;margin:0 0 22px;font-size:1.08rem}
.lvp{display:inline-block;background:#fff;color:var(--navy);font:700 .8rem var(--body);padding:6px 14px;border-radius:99px}
.mrow{display:flex;flex-wrap:wrap;gap:12px 26px;align-items:center;font-size:.95rem}
.mrow span{display:inline-flex;gap:8px;align-items:center}.mrow svg{width:18px;height:18px}
.mrow .stars{font-size:1rem}.mrow .stars::before{color:rgba(255,255,255,.35)}
.cd-w{display:grid;grid-template-columns:1fr 360px;gap:34px;align-items:start;margin-top:-100px;padding-bottom:70px;position:relative}
.cd-main{display:grid;gap:22px}
.box2{background:#fff;border-radius:24px;padding:32px;box-shadow:0 10px 34px rgba(10,35,71,.09)}
.box2 h2{font:800 1.5rem var(--head);margin:0 0 16px}
.box2>p{color:#4b5a78;line-height:1.8;margin:0}
.ls{display:grid;grid-template-columns:1fr 1fr;gap:14px 24px;list-style:none;margin:0;padding:0}
.ls li{display:flex;gap:12px;align-items:flex-start;line-height:1.5;color:#3b4a68}
.ls svg{flex:none;width:22px;height:22px;padding:4px;border-radius:50%;background:var(--lime);color:var(--ink);margin-top:1px}
.mods{display:grid;gap:12px}
.mods .q h3 button{font-size:1.02rem}
.mods ul{margin:0;padding:0 24px 22px 44px;color:#4b5a78;line-height:1.9}
.mods small{color:#6b7a96;font-weight:500;margin-left:8px}
.chp{display:flex;flex-wrap:wrap;gap:10px}
.chp span{background:#eef2fa;color:var(--navy);font-weight:700;font-size:.9rem;padding:9px 16px;border-radius:99px}
.pj{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pj div{border:1.5px solid #e1e7f2;border-radius:16px;padding:20px}
.pj b{display:block;font:700 1.05rem var(--head);margin-bottom:6px}.pj span{color:#4b5a78;font-size:.93rem;line-height:1.55}
.ins{display:flex;gap:22px;align-items:center}
.ins img{width:110px;height:110px;border-radius:22px;object-fit:cover;object-position:50% 18%;flex:none}
.ins b{display:block;font:800 1.3rem var(--head)}.ins span{color:#5a6a88}.ins p{margin:8px 0 0;color:#4b5a78;line-height:1.65}
.rv3{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rv3 blockquote{margin:0;background:#f8faff;border-radius:16px;padding:20px;color:#3b4a68;line-height:1.65;font-size:.96rem}
.rv3 cite{display:block;margin-top:10px;font-style:normal;font-weight:700;color:var(--navy);font-size:.9rem}
.rv3 .stars{display:block;margin-bottom:8px;font-size:.95rem}
.buy2{position:sticky;top:calc(98px + env(safe-area-inset-top,0px));background:#fff;border-radius:24px;padding:28px;box-shadow:0 30px 70px rgba(10,35,71,.22)}
.buy2 .pr{font:800 2.4rem/1 var(--head)}.buy2 .pr small{display:block;font:500 .85rem var(--body);color:#6b7a96;margin-bottom:6px}
.buy2 .btn{width:100%;justify-content:center;margin-top:14px}
.buy2 .btn-lime{box-shadow:none}
.buy2 .btn-outline{padding:14px 24px}
.buy2 ul{list-style:none;margin:22px 0 0;padding:20px 0 0;border-top:1px dashed #d8dfee;display:grid;gap:12px;font-size:.94rem;color:#3b4a68}
.buy2 li{display:flex;gap:10px;align-items:center}.buy2 li svg{width:18px;height:18px;color:#6b8a00;flex:none}
.buy2 .nb{margin-top:16px;text-align:center;font-size:.85rem;color:#5a6a88}
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel a{display:block;border-radius:20px;overflow:hidden;background:#fff;box-shadow:0 8px 26px rgba(10,35,71,.08);transition:.25s}
.rel a:hover{transform:translateY(-5px)}
.rel .rc{padding:22px;color:var(--tx,#fff);background:linear-gradient(135deg,var(--a),var(--b));min-height:120px;display:flex;align-items:flex-end;font:800 1.2rem/1.2 var(--head)}
.rel .rb{padding:16px 20px;display:flex;justify-content:space-between;color:#4b5a78;font-size:.92rem}.rel .rb b{color:var(--navy)}
.mobbar{display:none}
@media(max-width:1020px){
 .tw2,.mv,.cd-w{grid-template-columns:1fr}.tw2{gap:40px}
 .g3,.rel{grid-template-columns:1fr 1fr}.flow,.tm4{grid-template-columns:1fr 1fr}
 .buy2{position:static;order:-1}.cd-w{margin-top:-90px}
}
@media(max-width:640px){
 .sec{padding:60px 0}.g3,.rel,.flow,.tm4,.ls,.pj,.rv3{grid-template-columns:1fr}.st4{grid-template-columns:1fr 1fr}
 .box2{padding:22px 18px}.ins{flex-direction:column;align-items:flex-start}.cta2{padding:32px 22px}
 .mv article{padding:28px 22px}.cd{padding-bottom:130px}
 .mobbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:45;gap:12px;align-items:center;background:#fff;padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));box-shadow:0 -8px 24px rgba(10,35,71,.15)}
 .mobbar b{font:800 1.3rem var(--head);flex:none}.mobbar .btn{flex:1;justify-content:center;padding:13px}
 body.hasbar{padding-bottom:78px}.top{bottom:calc(90px + env(safe-area-inset-bottom,0px))}
}
.ph2{position:relative;width:100%;aspect-ratio:4/5;border-radius:30px;overflow:hidden;box-shadow:0 30px 60px rgba(10,35,71,.25)}
.ph2 img{width:100%;height:100%;object-fit:cover;object-position:50% 20%;display:block}
.tw2 .av .fc.st{right:-6px;bottom:0}
.crumb a+a::before{content:"/";margin-right:8px;opacity:.5}