:root{--ink:#121a2e;--sub:#5a6479;--line:#e2e6ee;--bg:#fff;--alt:#f3f6fb;--navy:#0b1f4b;--dark:#0d1220;--brand:#1f5fd6;--brand-dark:#1748a6;--accent:#ffd23f;--green:#0f9d76;--radius:16px;
--en:"Montserrat","Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.9 "Noto Sans JP",-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI",Meiryo,sans-serif;letter-spacing:.02em}
a{color:var(--brand)}a:hover{color:var(--brand-dark)}img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}.wrap.narrow{max-width:840px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:50}
/* お知らせバー */
.topbar{background:var(--navy);color:#fff;font-size:13px;text-align:center;padding:7px 16px}
.topbar b{color:var(--accent);font-family:var(--en);font-size:17px;margin:0 3px}.topbar a{color:var(--accent);font-weight:700;margin-left:10px}
/* ヘッダー */
header.site{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
header.site .wrap{display:flex;align-items:center;gap:14px;min-height:70px;max-width:1240px}
.logo{font-family:var(--en);font-weight:800;font-size:24px;text-decoration:none;color:var(--ink);white-space:nowrap;line-height:1.1}
.logo span{color:var(--brand)}.logo small{display:block;font-family:inherit;font-size:10.5px;font-weight:700;color:var(--sub);letter-spacing:.04em;margin-top:3px}
nav.global{margin-left:auto}nav.global ul{list-style:none;margin:0;padding:0;display:flex;gap:2px}
nav.global a{display:block;padding:8px 10px;text-decoration:none;color:var(--ink);font-size:14px;font-weight:700;position:relative}
nav.global a::after{content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;background:var(--brand);transform:scaleX(0);transition:transform .2s}
nav.global a:hover::after,nav.global a[aria-current=page]::after{transform:scaleX(1)}
.head-btns{display:flex;gap:8px}
#menu-toggle{display:none}
.sp-only{display:none}.nb{display:inline-block}
/* ボタン */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 30px;border-radius:999px;font-weight:800;text-decoration:none;border:2px solid transparent;line-height:1.3;margin:6px 10px 6px 0;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(11,31,75,.18)}
.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark);color:#fff}
.btn-accent{background:var(--accent);color:var(--navy)}.btn-accent:hover{color:var(--navy)}
.btn-line{border-color:#fff;color:#fff}.btn-line:hover{background:#fff;color:var(--navy)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-small{padding:9px 18px;font-size:13.5px;margin:0}
.btn-dark{background:var(--navy);color:#fff}.btn-dark:hover{color:#fff}
/* ヒーロー */
.hero{position:relative;overflow:hidden;color:#fff;padding:84px 0 96px;background:radial-gradient(circle at 85% 20%,rgba(31,95,214,.55),transparent 45%),linear-gradient(135deg,#0b1f4b 0%,#123a8c 60%,#1f5fd6 100%)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(180deg,#000,transparent)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.25fr 1fr;gap:48px;align-items:center}
.eyebrow{font-family:var(--en);font-weight:700;font-size:12px;letter-spacing:.2em;color:#9fc0ff;margin:0 0 14px}
.hero h1{font-size:clamp(34px,5vw,62px);line-height:1.22;margin:0 0 22px;font-weight:900;letter-spacing:.01em}
.hero h1 em{font-style:normal;white-space:nowrap;background:linear-gradient(transparent 62%,rgba(255,210,63,.85) 62%)}
.hero .lead{color:#dbe6ff;font-size:16.5px}
.chips{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.chips a{display:block;padding:6px 14px;border:1px solid rgba(255,255,255,.4);border-radius:999px;color:#fff;text-decoration:none;font-size:13px;font-weight:700}
.chips a:hover{background:rgba(255,255,255,.12)}
.scroll-cue{position:absolute;left:28px;bottom:0;margin:0;font-family:var(--en);font-size:11px;letter-spacing:.25em;color:#bcd0ff;writing-mode:vertical-rl;padding-bottom:70px}
.scroll-cue::after{content:"";position:absolute;left:50%;bottom:0;width:1px;height:60px;background:#bcd0ff;animation:cue 2s infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
.mock{background:#fff;color:var(--ink);border-radius:22px;padding:22px;box-shadow:0 30px 60px rgba(0,0,0,.28);transform:rotate(1.5deg)}
.mock-head{font-weight:900;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center}.mock-head span{font-size:11px;color:var(--sub);background:var(--alt);padding:2px 10px;border-radius:999px}
.mock-count{background:var(--alt);border-radius:12px;padding:12px 14px;margin-bottom:10px}
.mock-count span,.mock-row span{display:block;font-size:12px;color:var(--sub)}.mock-count b{font-size:28px;color:var(--brand)}.mock-count i{font-style:normal;font-family:var(--en)}
.mock-row{border-top:1px solid var(--line);padding:10px 2px}.mock-row b{font-size:22px;margin-right:8px}.mock-row em{font-style:normal;font-size:13px;color:var(--green);font-weight:700}
.mock-bars{display:grid;gap:6px;margin:8px 0}.mock-bars i{display:block;height:10px;border-radius:6px;background:linear-gradient(90deg,#7c3aed,#1f5fd6)}
/* 帯 */
.band{background:var(--navy);color:#fff;border-top:1px solid rgba(255,255,255,.12)}
.band p{margin:0;padding:18px 0;text-align:center;font-weight:800;font-size:clamp(15px,2vw,19px)}
.band mark{background:none;color:var(--accent)}
/* セクション */
.section{padding:96px 0;position:relative;overflow:hidden}.section.alt{background:var(--alt)}
.section.dark{background:var(--dark);color:#fff}.section.dark p{color:#c3cbe0}
.sec-label{font-family:var(--en);font-weight:700;font-size:13px;letter-spacing:.22em;color:var(--brand);margin:0 0 10px;display:flex;align-items:center;gap:12px}
.sec-label span{display:inline-block;padding-right:12px;border-right:1px solid currentColor;line-height:1}
.dark .sec-label{color:#8fb3ff}
h2{font-size:clamp(22px,3.2vw,28px);line-height:1.5;margin:56px 0 16px}
h2.big{font-size:clamp(26px,4vw,40px);font-weight:900;line-height:1.4;margin:0 0 36px}
.section h2{margin-top:0}.center{text-align:center}
h3,.h3{font-size:18px;line-height:1.5;margin:0 0 8px}
.lead{font-size:17px;color:#2b3550}.note{font-size:13px;color:var(--sub)}.muted{color:var(--sub);font-size:14px}
.more{display:inline-flex;align-items:center;gap:10px;font-family:var(--en),sans-serif;font-weight:700;text-decoration:none;font-size:14px}
.more::after{content:"";width:34px;height:1px;background:currentColor;transition:width .2s}.more:hover::after{width:52px}
.dark .more{color:#fff}
/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;position:relative;z-index:1}
.about-grid h2.big{margin:0}
.watermark{position:absolute;right:-20px;bottom:-60px;margin:0;font-family:var(--en);font-weight:800;font-size:clamp(90px,18vw,230px);color:#f1f4f9;line-height:1;z-index:0;white-space:nowrap;pointer-events:none}
/* METHOD */
.method{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid #2a3350}
.method-item{padding:34px 28px 30px;border-right:1px solid #2a3350}.method-item:last-child{border-right:0}
.method-item .num{display:block;font-family:var(--en);font-size:56px;font-weight:800;color:transparent;-webkit-text-stroke:1px #6f8fd8;line-height:1;margin-bottom:16px}
.method-item h3{font-size:24px;font-weight:900;color:#fff;margin-bottom:12px}
/* COURSE タイル */
.tiles{display:grid;grid-template-columns:repeat(3,1fr)}
.tile{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:340px;padding:32px;color:#fff;text-decoration:none;overflow:hidden}
.tile::before{content:"";position:absolute;inset:0;transition:transform .5s;z-index:0}
.tile:hover::before{transform:scale(1.06)}.tile>*{position:relative;z-index:1}
.t1::before{background:linear-gradient(160deg,#1f5fd6,#0b1f4b)}.t2::before{background:linear-gradient(160deg,#0f9d76,#0b3b4b)}.t3::before{background:linear-gradient(160deg,#7c3aed,#24124b)}
.tile .en{font-family:var(--en);font-weight:800;font-size:13px;letter-spacing:.2em;opacity:.75}
.tile b{font-size:26px;font-weight:900;margin:6px 0 8px}.tile .desc{font-size:14px;opacity:.9}
.tile .view{margin-top:22px;font-family:var(--en);font-weight:700;font-size:14px;display:flex;align-items:center;gap:12px;color:#fff}
.tile .view::after{content:"";width:50px;height:1px;background:#fff;transition:width .2s}.tile:hover .view::after{width:80px}
/* 表 */
.scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;background:#fff;margin:8px 0 16px}
th,td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}thead th{background:#eaf0fa}
td.num{text-align:right;white-space:nowrap}
table.compare{max-width:860px;margin:0 auto 28px}table.compare td{text-align:center;font-weight:800;font-size:18px}table.compare th{font-weight:700}
table.compare .hl{background:#fffbea}table.compare thead .hl{background:var(--accent);color:var(--navy)}
/* FLOW */
.flow{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.flow li{counter-increment:s;position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:58px 22px 24px}
.flow li::before{content:"STEP 0" counter(s);position:absolute;left:22px;top:20px;font-family:var(--en);font-weight:800;font-size:13px;letter-spacing:.12em;color:var(--brand)}
.flow li:not(:last-child)::after{content:"";position:absolute;right:-12px;top:50%;width:8px;height:8px;border-top:2px solid var(--brand);border-right:2px solid var(--brand);transform:translateY(-50%) rotate(45deg)}
.flow b{display:block;font-size:18px;margin-bottom:6px}.flow span{color:var(--sub);font-size:14.5px}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:12px;margin:0 0 16px}
.steps li{counter-increment:s;position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 16px 16px 64px}
.steps li::before{content:counter(s);position:absolute;left:16px;top:16px;width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;font-family:var(--en);display:flex;align-items:center;justify-content:center}
.steps b{display:block}.steps span{color:var(--sub);font-size:15px}
/* DATA */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:12px}
.stats div{background:#fff;border-radius:var(--radius);padding:30px 20px;text-align:center;box-shadow:0 6px 24px rgba(11,31,75,.06)}
.stats span,.stats em{display:block;font-size:13px;color:var(--sub);font-style:normal}
.stats b{display:block;font-family:var(--en);font-size:52px;font-weight:800;color:var(--brand);line-height:1.2;margin:8px 0}.stats b small{font-size:20px;margin-left:2px}
/* COLUMN */
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:36px}.head-row h2.big{margin:0}
.columns{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.col-card{text-decoration:none;color:var(--ink)}
.col-card .thumb{aspect-ratio:16/10;border-radius:12px;background:linear-gradient(135deg,#dfe9ff,#b9cdf7);display:flex;align-items:center;justify-content:center;overflow:hidden;transition:transform .3s}
.col-card:nth-child(2) .thumb{background:linear-gradient(135deg,#d7f3ea,#a8e0cf)}.col-card:nth-child(3) .thumb{background:linear-gradient(135deg,#fff1c7,#ffd98a)}.col-card:nth-child(4) .thumb{background:linear-gradient(135deg,#eadfff,#c9b5f5)}
.col-card .thumb span{font-weight:900;font-size:20px;color:var(--navy);opacity:.75}
.col-card:hover .thumb{transform:translateY(-4px)}
.col-meta{display:flex;align-items:center;gap:10px;font-family:var(--en);font-size:12.5px;color:var(--sub);margin:12px 0 4px}
.tag{font-family:inherit;font-size:11.5px;font-weight:700;color:var(--brand);border:1px solid var(--brand);border-radius:999px;padding:0 10px}
.col-card h3{font-size:15.5px;line-height:1.6}.col-card:hover h3{color:var(--brand)}
/* カード類（下層ページ） */
.cards3,.cards2,.fields{display:grid;gap:18px}.cards3{grid-template-columns:repeat(3,1fr)}.cards2{grid-template-columns:repeat(2,1fr)}.cards2:has(.teacher){grid-template-columns:1fr}.fields{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.link-card{text-decoration:none;color:var(--ink);transition:transform .15s,box-shadow .15s}.link-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(11,31,75,.1)}.link-card h3{color:var(--brand)}
.check{padding-left:0;list-style:none}.check li{padding-left:30px;position:relative;margin:8px 0}.check li::before{content:"✓";position:absolute;left:4px;color:var(--green);font-weight:900}
.faq details{border-bottom:1px solid var(--line);background:none}
.faq summary{cursor:pointer;padding:20px 40px 20px 44px;font-weight:700;list-style:none;position:relative}.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";position:absolute;left:4px;top:16px;font-family:var(--en);font-weight:800;font-size:22px;color:var(--brand)}
.faq summary::after{content:"+";position:absolute;right:8px;top:14px;font-size:24px;color:var(--brand);transition:transform .2s}.faq details[open] summary::after{transform:rotate(45deg)}
.faq .answer{padding:0 8px 14px 44px;color:#2b3550}
/* CTA */
.cta{position:relative;overflow:hidden;background:linear-gradient(135deg,#0b1f4b,#1f5fd6);color:#fff;padding:80px 0;text-align:center}
.cta::after{content:"FREE";position:absolute;right:-10px;bottom:-40px;font-family:var(--en);font-weight:800;font-size:200px;color:rgba(255,255,255,.05);line-height:1;pointer-events:none}
.cta h2{color:#fff;margin:0 0 10px;font-size:clamp(24px,3.6vw,34px);font-weight:900}.cta p{color:#d6e2ff}
.cta .btn-ghost{background:transparent;color:#fff;border-color:#fff}
article .cta{border-radius:20px;padding:48px 24px;margin:56px 0 0}article .cta h2{border:0;padding:0}
.rep{display:flex;align-items:center;gap:20px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}.rep img{width:110px;height:110px;object-fit:cover;object-position:50% 20%;border-radius:50%}.rep p{margin:0}.rep-role{font-size:13px;color:var(--sub)}.rep-name{font-size:22px;font-weight:900;margin-bottom:4px!important}
.teacher{display:grid;grid-template-columns:220px 1fr;gap:28px;align-items:start}.teacher img{width:100%;border-radius:14px}@media (max-width:640px){.teacher{grid-template-columns:1fr}.teacher img{max-width:260px}}
/* 下層ページの見出し */
.page-hero{background:var(--navy);color:#fff;padding:56px 0 46px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:40px 40px}
.page-hero .wrap{position:relative}
.page-hero .en{font-family:var(--en);font-weight:800;font-size:13px;letter-spacing:.22em;color:#8fb3ff;margin:0 0 8px}
.page-hero h1{font-size:clamp(24px,4vw,38px);line-height:1.45;margin:0;font-weight:900}
.page-hero .article-meta{color:#b9c6e4;margin:14px 0 0}.page-hero .article-meta a{color:#fff}
.breadcrumb{font-size:12.5px;color:var(--sub);padding:14px 0}.breadcrumb ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb li+li::before{content:"›";margin-right:6px}
main.article article,main.page article{padding:24px 0 80px}
article h2{border-left:5px solid var(--brand);padding-left:14px}
article h3{margin-top:28px}
.article-meta{font-size:13px;color:var(--sub)}
.sources li{font-size:14px}
/* フッター */
footer.site{background:var(--dark);color:#aeb8cf;padding:72px 0 28px;font-size:14px;position:relative;overflow:hidden}
footer.site a{color:#fff;text-decoration:none}footer.site a:hover{color:var(--accent)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;position:relative;z-index:1}
.foot-grid ul{list-style:none;padding:0;margin:0}.foot-grid li{margin:7px 0}
.foot-logo{font-family:var(--en);font-weight:800;font-size:40px;color:#fff;margin:0 0 8px;line-height:1}
.foot-cta{margin-top:18px}
.copy{border-top:1px solid #222b40;margin-top:40px;padding-top:18px;font-size:12px;color:#77829b;font-family:var(--en)}
.foot-mark{position:absolute;right:-10px;bottom:-30px;font-family:var(--en);font-weight:800;font-size:clamp(80px,14vw,180px);color:rgba(255,255,255,.03);margin:0;line-height:1;pointer-events:none}
/* 追従ボタン */
.float-cta{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:40;display:flex;flex-direction:column;gap:2px}
.float-cta a{writing-mode:vertical-rl;padding:18px 12px;font-weight:800;font-size:14px;letter-spacing:.12em;text-decoration:none;border-radius:10px 0 0 10px;box-shadow:-4px 6px 16px rgba(0,0,0,.15)}
.float-cta .f1{background:var(--accent);color:var(--navy)}.float-cta .f2{background:var(--navy);color:#fff}
.to-top{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;text-decoration:none;font-family:var(--en);font-size:11px;font-weight:800;opacity:0;pointer-events:none;transition:opacity .3s;z-index:40}
.to-top.show{opacity:1;pointer-events:auto}.to-top:hover{color:var(--accent)}
/* ふわっと表示 */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}.scroll-cue::after{animation:none}html{scroll-behavior:auto}}
@media (max-width:1080px){nav.global a{padding:8px 7px;font-size:13px}}
@media (max-width:960px){
 .hero{padding:56px 0 72px}.hero-grid,.about-grid,.cards3,.cards2,.stats,.foot-grid,.method,.tiles{grid-template-columns:1fr}
 .mock{transform:none;max-width:420px}.scroll-cue{display:none}
 .method-item{border-right:0;border-bottom:1px solid #2a3350;padding:28px 0}
 .tile{min-height:220px}
 .flow{grid-template-columns:1fr 1fr}.flow li::after{display:none}
 .columns{grid-template-columns:1fr 1fr}
 .section{padding:72px 0}
 header.site .wrap{min-height:62px}
 nav.global{display:none;position:fixed;inset:62px 0 0 0;background:var(--dark);padding:24px;overflow:auto}
 nav.global.open{display:block}nav.global ul{flex-direction:column;gap:0}
 nav.global a{color:#fff;font-size:17px;padding:16px 4px;border-bottom:1px solid #222b40}nav.global a::after{display:none}
 #menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;margin-left:auto;width:46px;height:46px;background:var(--navy);border:0;border-radius:10px;padding:0 12px;cursor:pointer}
 #menu-toggle i{display:block;height:2px;background:#fff;transition:transform .2s,opacity .2s}
 #menu-toggle[aria-expanded=true] i:nth-child(1){transform:translateY(7px) rotate(45deg)}#menu-toggle[aria-expanded=true] i:nth-child(2){opacity:0}#menu-toggle[aria-expanded=true] i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
 .head-btns{display:none}nav.global .sp-only{display:block}
 .float-cta{top:auto;bottom:0;left:0;right:0;transform:none;flex-direction:row;gap:0;padding:8px;background:rgba(255,255,255,.96);box-shadow:0 -4px 16px rgba(0,0,0,.08);padding-bottom:calc(8px + env(safe-area-inset-bottom))}
 .float-cta a{writing-mode:horizontal-tb;flex:1;text-align:center;border-radius:999px;padding:12px 8px;margin:0 4px;box-shadow:none;letter-spacing:.04em}
 body{padding-bottom:72px}.to-top{bottom:84px}
}
@media (max-width:560px){.columns,.flow{grid-template-columns:1fr}.topbar{font-size:12px}.pc-only{display:none}.btn{width:100%;margin-right:0}.hero h1{font-size:36px}h2.big{margin-bottom:24px}}