@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;600;700;800&display=swap');
:root{--ink:#182d38;--muted:#60737e;--paper:#f7faf9;--white:#fff;--teal:#067f77;--teal-dark:#045d57;--mint:#e7f6f1;--border:#dae5e5;--blue:#3453a4;--blue-soft:#eef2ff;--gold:#a86722;--shadow:0 18px 48px rgba(20,45,51,.075);--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:'DM Sans','Noto Sans JP',sans-serif;line-height:1.75;letter-spacing:.005em}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #e6aa55;outline-offset:2px}p{margin:0 0 1em}h1,h2,h3{line-height:1.32;letter-spacing:-.03em;margin:0 0 .65em}h1{font-size:clamp(2.2rem,4.4vw,4.25rem);font-weight:800}h2{font-size:clamp(1.6rem,2.5vw,2.55rem)}h3{font-size:1.16rem}.container{width:min(1200px,calc(100% - 48px));margin:0 auto}.site-header{height:82px;background:rgba(255,255,255,.95);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;backdrop-filter:blur(16px)}.header-inner{height:100%;display:flex;align-items:center;gap:28px}.logo{display:flex;align-items:center;gap:10px;white-space:nowrap}.logo-symbol{width:37px;height:37px;display:grid;place-items:center;background:var(--teal);color:white;border-radius:12px;font-weight:800;font-size:21px}.logo-letters{font-size:16px;font-weight:800;line-height:1.2}.logo-letters small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.1em;margin-top:3px}.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto}.nav-links a{font-size:14px;color:#415c65;font-weight:700}.nav-links a:hover{color:var(--teal)}.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:11px 22px;border:1px solid var(--teal);border-radius:10px;background:var(--teal);color:white;font-size:14px;font-weight:800;transition:transform .16s,background .16s;box-shadow:0 3px 7px 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p{max-width:370px;font-size:13px;color:#b4c7ca}.footer-bottom{display:flex;justify-content:space-between;gap:16px;border-top:1px solid #34505a;margin-top:32px;padding-top:20px;color:#91aab2;font-size:12px}.eyebrow{display:inline-block;color:var(--teal);text-transform:uppercase;letter-spacing:.15em;font-weight:800;font-size:11px}.hero{background:radial-gradient(circle at 85% 15%,#d6efe9 0%,transparent 42%),linear-gradient(110deg,#f5fbf9,#eff7f6);overflow:hidden;border-bottom:1px solid #e0eae9}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:60px;min-height:570px;padding-top:62px;padding-bottom:74px}.hero-title{margin-top:18px}.hero-title em{font-style:normal;color:var(--teal)}.hero-lead{font-size:17px;color:#556d77;max-width:565px;margin-bottom:30px;line-height:2}.button-row{display:flex;flex-wrap:wrap;gap:12px}.trustline{margin-top:35px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;color:#527079;font-size:12px;font-weight:700}.trustline 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13px;border-radius:9px;background:#f0f6f6;margin-top:8px}.transcript summary{padding:0;font-size:12px;color:var(--teal);font-weight:700}.transcript p{font-size:13px;margin-top:9px}.page-copy{padding-top:55px}.page-copy article{max-width:810px;margin:0 auto;font-size:15px;color:#536d75}.page-copy h2{color:var(--ink);margin:32px 0 10px;font-size:24px}.page-copy a{color:var(--teal);text-decoration:underline}.legal-article{max-width:850px;margin:60px auto;color:#526d75}.legal-article h2{margin:30px 0 8px;font-size:22px;color:var(--ink)}.legal-article p{font-size:14px}.legal-article li{font-size:14px}.legal-article a{color:var(--teal);text-decoration:underline}.notice-inline{background:#fff8ea;border:1px solid #f1e3c8;border-radius:9px;padding:12px 15px;font-size:12px;color:#83602e;margin:16px 0}.hide-mobile{display:block}[hidden]{display:none!important}
@media(max-width:1050px){.nav-links{gap:13px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-grid{gap:27px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.container{width:min(100% - 30px,1200px)}.site-header{height:70px}.nav-links{display:none;position:absolute;top:69px;left:0;right:0;background:white;padding:18px 22px 24px;border-bottom:1px solid var(--border);box-shadow:var(--shadow)}body.nav-open .nav-links{display:flex;flex-direction:column;align-items:stretch}.nav-toggle{display:block}.header-cta{display:none}.hero-grid{display:flex;flex-direction:column;padding:49px 0 72px;min-height:auto;align-items:stretch}.hero-visual{max-width:470px;margin:0 auto}.hero-title{font-size:clamp(2.3rem,10vw,3.5rem)}.hero-lead{font-size:15px}.stats-strip{grid-template-columns:repeat(2,1fr);gap:9px}.stat-item{padding:15px}.stat-item strong{font-size:24px}.stat-item span{font-size:11px}.section{padding-top:54px}.section-tint{margin-top:55px;padding:55px 0}.section-top{display:block}.section-top .subtle-link{display:inline-block;margin-top:10px}.grid-4,.grid-3{grid-template-columns:1fr}.exam-card p{min-height:auto}.catalog-search{grid-template-columns:1fr 1fr}.catalog-search input{grid-column:1 / -1}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column}.exam-detail-grid{display:block;padding-top:33px}.sidebar-card{position:static;margin:25px 0}.page-hero,.catalog-hero{padding:48px 0}.runner-layout{display:flex;flex-direction:column}.runner-topbar{flex-wrap:wrap;padding:14px}.runner-count{margin-left:auto}.runner-side{position:static;width:100%;order:-1}.runner-side .question-grid{grid-template-columns:repeat(10,1fr)}.runner-side .side-help{display:none}.question-paper{width:100%;padding:24px 20px;min-height:0}.question-prompt{font-size:18px}.audio-box{flex-direction:column;align-items:flex-start}.runner-actions{flex-wrap:wrap}.runner-actions-left{flex-wrap:wrap}.runner-actions>.btn{flex-grow:1}.result-metrics{grid-template-columns:1fr 1fr}.result-score-card strong{font-size:30px}.review-row summary{padding:12px;gap:7px}.review-body{padding:0 13px 15px}.review-title{font-size:12px}.passage{padding:14px;font-size:13px}.hide-mobile{display:none}}
@media(max-width:410px){.catalog-search{grid-template-columns:1fr}.catalog-search input{grid-column:auto}.runner-side .question-grid{grid-template-columns:repeat(7,1fr)}.result-metrics{grid-template-columns:1fr}.button-row .btn{width:100%}.hero-sticker{right:0}.section-top h2{font-size:1.75rem}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}