:root{
  --ink:#17202a;--muted:#667085;--line:#e6e4df;--paper:#f7f6f2;--white:#fff;
  --red:#b4232f;--red2:#d92d3a;--redSoft:#fbeaec;--green:#176b4d;--greenSoft:#eaf6f0;
  --amber:#9a6700;--amberSoft:#fff4d8;--navy:#172b4d;--shadow:0 18px 50px rgba(27,31,36,.08);
  --radius:18px;--font:Inter,"Noto Sans JP","Yu Gothic","Hiragino Kaku Gothic ProN",system-ui,-apple-system,Segoe UI,sans-serif;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);line-height:1.55}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit}.hidden{display:none!important}.wrap{width:min(1180px,calc(100% - 40px));margin:auto}
.topbar{height:76px;background:rgba(247,246,242,.93);backdrop-filter:blur(14px);position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(0,0,0,.05);display:flex;align-items:center;padding:0 max(20px,calc((100vw - 1180px)/2));gap:36px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}.brand-mark{width:36px;height:36px;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:900;border-radius:9px}.brand-mark.small{width:30px;height:30px;border-radius:7px}.brand b{display:block;letter-spacing:.12em}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.08em}.topbar nav{display:flex;gap:8px}.topbar nav a{padding:9px 14px;border-radius:999px;text-decoration:none;font-size:14px;color:#475467}.topbar nav a:hover,.topbar nav a.active{background:#fff;color:var(--red);box-shadow:0 2px 10px rgba(0,0,0,.04)}.menu-btn{display:none;border:0;background:#fff;padding:8px 12px;border-radius:10px}
.page{display:none;min-height:70vh}.page.active{display:block}.hero{min-height:570px;display:grid;grid-template-columns:1.18fr .82fr;align-items:center;gap:48px;padding-top:42px;padding-bottom:48px}.eyebrow,.kicker{font-size:11px;font-weight:800;letter-spacing:.17em;color:var(--red);text-transform:uppercase}.hero h1,.page-hero h1{font-size:clamp(44px,6vw,76px);line-height:1.02;margin:14px 0 22px;letter-spacing:-.045em}.hero h1 span{color:var(--red)}.hero-copy>p{font-size:18px;max-width:700px;color:#475467}.hero-actions{display:flex;gap:12px;margin:30px 0 18px}.micro{font-size:12px!important;color:#98a2b3!important}.btn{border:1px solid transparent;padding:12px 18px;border-radius:12px;font-weight:750;transition:.18s}.btn.primary{background:var(--red);color:#fff;box-shadow:0 8px 18px rgba(180,35,47,.18)}.btn.primary:hover{background:#941d27;transform:translateY(-1px)}.btn.ghost{background:#fff;border-color:var(--line);color:var(--ink)}.btn.ghost:hover{border-color:#c8c5bd}.btn.full{width:100%}.hero-art{height:420px;position:relative;display:grid;place-items:center;overflow:hidden}.sun{position:absolute;width:330px;height:330px;border:2px solid rgba(180,35,47,.32);border-radius:50%}.sun:before,.sun:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(180,35,47,.13)}.sun:before{inset:27px}.sun:after{inset:70px}.kanji{font-size:170px;font-weight:800;color:#20252b;line-height:1;z-index:2;font-family:"Yu Mincho","Hiragino Mincho ProN",serif}.vertical{position:absolute;right:6%;top:15%;writing-mode:vertical-rl;letter-spacing:.15em;color:#667085;font-size:13px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:-18px}.stat-card{background:#fff;border:1px solid var(--line);padding:22px;border-radius:var(--radius);box-shadow:0 10px 28px rgba(27,31,36,.04)}.stat-card strong{font-size:31px;display:block;letter-spacing:-.04em}.stat-card span{color:var(--muted);font-size:13px}.block{padding:86px 0 0}.section-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:28px}.section-heading h2,.panel h2{font-size:32px;line-height:1.15;margin:7px 0 0;letter-spacing:-.025em}.section-heading>p{max-width:460px;color:var(--muted);margin:0}.section-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.section-card{padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);min-height:210px;position:relative}.section-card .num{font-size:11px;letter-spacing:.14em;color:var(--red);font-weight:800}.section-card h3{font-size:19px;margin:35px 0 8px;line-height:1.25}.section-card p{font-size:13px;color:var(--muted);margin:0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-bottom:90px}.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 9px 30px rgba(27,31,36,.035)}.source-panel{background:var(--ink);color:#fff}.source-panel p{color:#cbd2da}.source-panel .kicker{color:#ffb1b8}.text-btn{border:0;background:transparent;padding:0;color:var(--red);font-weight:750}.source-panel .text-btn{color:#fff}.text-btn.danger{color:#a4a9b0;font-size:12px}.panel-title-row{display:flex;justify-content:space-between;align-items:start}.recent-results{margin-top:20px}.result-row{display:grid;grid-template-columns:1fr auto;gap:16px;padding:12px 0;border-top:1px solid var(--line)}.result-row:first-child{border-top:0}.result-row b{display:block}.result-row small{color:var(--muted)}.score-pill{align-self:center;background:var(--greenSoft);color:var(--green);font-weight:800;padding:5px 9px;border-radius:999px;font-size:12px}.empty-mini{color:var(--muted);font-size:14px;padding:18px 0}
.page-hero{padding:72px 0 42px;display:flex;align-items:flex-end;justify-content:space-between;gap:30px}.page-hero h1{font-size:clamp(44px,5.4vw,68px);margin-bottom:14px}.page-hero p{color:var(--muted);max-width:760px;font-size:17px}.page-number{font-size:96px;font-weight:900;line-height:.8;color:transparent;-webkit-text-stroke:1px #c9c6be;letter-spacing:-.06em}.filter-row{display:grid;grid-template-columns:1fr 260px;gap:12px;margin-bottom:22px}.input{width:100%;border:1px solid #d7d4cc;background:#fff;border-radius:11px;padding:11px 13px;color:var(--ink);outline:none}.input:focus{border-color:#ad7a7f;box-shadow:0 0 0 3px rgba(180,35,47,.08)}.input.compact{max-width:300px}.tryout-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;padding-bottom:90px}.tryout-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;min-height:290px;transition:.18s}.tryout-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.tryout-top{display:flex;justify-content:space-between;gap:10px;align-items:start}.tryout-num{font-size:12px;color:#98a2b3;font-weight:800}.badge{font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;padding:5px 8px;border-radius:999px;background:#f2f4f7;color:#475467}.badge.structured{background:var(--greenSoft);color:var(--green)}.badge.reconstructed{background:var(--amberSoft);color:var(--amber)}.tryout-card h3{font-size:27px;margin:26px 0 4px;letter-spacing:-.02em}.tryout-card p{font-size:13px;color:var(--muted);margin:0}.tryout-meta{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0;color:#667085;font-size:12px}.tryout-actions{display:flex;gap:9px;margin-top:auto}.tryout-actions .btn{flex:1;padding:9px 12px;font-size:13px}.source-link{display:inline-grid;place-items:center;width:38px;border:1px solid var(--line);border-radius:10px;background:#fff;text-decoration:none;color:#667085}
.practice-layout{display:grid;grid-template-columns:290px 1fr;gap:16px;padding-bottom:90px;align-items:start}.practice-controls{position:sticky;top:96px}.practice-controls h3{margin-top:0}.practice-controls label{display:block;font-size:12px;color:#475467;font-weight:700;margin:15px 0}.practice-controls label .input{margin-top:6px;font-weight:500}.control-note{font-size:12px;color:var(--muted);padding-top:14px}.practice-intro{min-height:520px}.empty-state{text-align:center;max-width:530px;margin:80px auto}.empty-mark{font-size:90px;font-family:"Yu Mincho",serif;color:#ddd9cf}.empty-state h2{font-size:30px}.empty-state p{color:var(--muted)}.practice-head{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:16px}.practice-head b{font-size:20px}.practice-head span{font-size:12px;color:var(--muted)}.practice-score{font-weight:900;color:var(--red)}.practice-question{padding:28px 0}.question-kicker{font-size:11px;text-transform:uppercase;letter-spacing:.11em;font-weight:800;color:var(--red);margin-bottom:13px}.question-prompt{font-size:25px;line-height:1.45;font-weight:700;white-space:pre-wrap}.reading-box{background:#f5f4ef;border-left:3px solid var(--red);padding:18px;border-radius:8px;margin:12px 0 20px;font-size:18px;white-space:pre-wrap}.source-image{max-width:min(100%,560px);max-height:360px;object-fit:contain;border:1px solid var(--line);border-radius:12px;background:#fff;padding:8px;margin:10px 0 18px}.choice-list{display:grid;gap:10px;margin-top:25px}.choice{border:1px solid #d9d6cf;background:#fff;text-align:left;border-radius:12px;padding:14px 15px;font-size:16px;transition:.15s}.choice:hover:not(:disabled){border-color:#9d7d80;background:#fffafa}.choice.correct{border-color:#56a181;background:var(--greenSoft)}.choice.wrong{border-color:#d96f77;background:var(--redSoft)}.choice:disabled{cursor:default;color:inherit}.explanation{margin-top:19px;border-radius:12px;padding:16px 18px;background:#f6f7f8;font-size:14px}.explanation.good{background:var(--greenSoft);color:#1c5945}.explanation.bad{background:var(--redSoft);color:#8f2430}.practice-foot{display:flex;justify-content:space-between;align-items:center;margin-top:24px}.audio-box{display:flex;align-items:center;gap:12px;background:#f4f3ef;padding:15px;border-radius:12px;margin:14px 0}.play-audio{border:0;background:var(--ink);color:#fff;border-radius:10px;padding:10px 14px;font-weight:750}.play-audio:disabled{opacity:.45}.audio-waves{flex:1;height:20px;background:repeating-linear-gradient(90deg,#a5a6a8 0 2px,transparent 2px 7px);mask-image:linear-gradient(to right,transparent,#000 10%,#000 90%,transparent)}
.source-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.summary-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px}.summary-card strong{font-size:32px;display:block}.summary-card span{font-size:13px;color:var(--muted)}.source-table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.source-table{width:100%;border-collapse:collapse;min-width:720px}.source-table th,.source-table td{text-align:left;padding:15px 17px;border-bottom:1px solid #eeece6;font-size:13px}.source-table th{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#667085;background:#fafaf8}.source-table tr:last-child td{border-bottom:0}.source-table a{color:var(--red);font-weight:700}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.resource-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;display:flex;gap:13px;align-items:start}.resource-card:hover{border-color:#bc9b9e}.resource-icon{width:36px;height:36px;border-radius:9px;background:var(--redSoft);color:var(--red);display:grid;place-items:center;font-weight:900;flex:0 0 auto}.resource-card b{font-size:14px;display:block;line-height:1.35}.resource-card small{color:var(--muted)}.notice{background:#fff4d8;border:1px solid #ead8a3;padding:17px 20px;border-radius:14px;margin-top:40px;margin-bottom:90px;font-size:13px;color:#664d12}.notice b{display:block;margin-bottom:4px}
footer{border-top:1px solid var(--line);padding:30px 0;background:#fff}.footer-inner{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.footer-inner b{color:var(--ink);margin-right:10px}
.exam-shell{position:fixed;inset:0;background:#f4f3ef;z-index:100;overflow:auto}.exam-top{height:74px;background:#fff;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr minmax(220px,420px) auto auto;align-items:center;gap:22px;padding:0 24px;position:sticky;top:0;z-index:3}.exam-brand{display:flex;gap:10px;align-items:center}.exam-brand b{display:block}.exam-brand small{display:block;color:var(--muted)}.exam-meter{display:flex;align-items:center;gap:11px;font-size:11px;color:#667085}.bar{height:7px;background:#eceae5;border-radius:999px;overflow:hidden;flex:1}.bar i{display:block;height:100%;width:0;background:var(--red);transition:.2s}.timer{font-size:25px;font-variant-numeric:tabular-nums;font-weight:850;letter-spacing:-.02em}.timer.warn{color:var(--red)}.exam-exit{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 10px}.exam-body{display:grid;grid-template-columns:250px 1fr;min-height:calc(100vh - 74px)}.exam-side{background:#fff;border-right:1px solid var(--line);padding:22px;position:sticky;top:74px;height:calc(100vh - 74px);overflow:auto}.section-step{display:flex;gap:11px;padding:10px 0;color:#98a2b3;font-size:12px;align-items:center}.section-step i{width:25px;height:25px;border-radius:50%;border:1px solid #d6d3cc;display:grid;place-items:center;font-style:normal;font-weight:800;flex:0 0 auto}.section-step.current{color:var(--ink);font-weight:750}.section-step.current i{background:var(--red);border-color:var(--red);color:#fff}.section-step.done i{background:var(--greenSoft);border-color:#b9ddce;color:var(--green)}.question-map{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin:25px 0}.qmap{aspect-ratio:1;border:1px solid #d9d6cf;background:#fff;border-radius:7px;font-size:11px}.qmap.current{outline:2px solid var(--red);outline-offset:1px}.qmap.answered{background:var(--greenSoft);border-color:#a6d0c0}.qmap.flagged{box-shadow:inset 0 -3px 0 #d69e2e}.qmap:disabled{opacity:.45;cursor:not-allowed}.legend{display:grid;gap:8px;font-size:11px;color:#667085}.legend span{display:flex;align-items:center;gap:7px}.dot{width:10px;height:10px;border-radius:3px;background:#ddd}.dot.answered{background:#b6dfce}.dot.flagged{background:#d69e2e}.exam-main{padding:50px min(8vw,110px) 90px}.question-card{max-width:860px;margin:auto;min-height:500px}.exam-nav{max-width:860px;margin:24px auto;display:flex;gap:10px}.exam-nav .btn:last-child{margin-left:auto}.exam-section-intro{text-align:center;padding:55px 20px}.exam-section-intro .big-num{font-size:90px;font-weight:900;color:transparent;-webkit-text-stroke:1px #d0cdc5}.exam-section-intro h2{font-size:38px;margin:0 0 10px}.exam-section-intro p{color:var(--muted);max-width:600px;margin:0 auto 28px}.exam-tag{display:inline-block;background:var(--redSoft);color:var(--red);font-size:11px;font-weight:800;border-radius:999px;padding:6px 9px;margin-bottom:15px}.question-number{font-size:12px;color:#667085;margin-bottom:8px}.exam-question-title{font-size:28px;line-height:1.45;font-weight:700;white-space:pre-wrap}.exam-source-note{font-size:11px;color:#98a2b3;margin-top:12px}.locked-note{background:#fff4d8;padding:10px 12px;border-radius:9px;font-size:12px;color:#70570a;margin-top:12px}
.modal{position:fixed;inset:0;background:rgba(18,23,29,.65);z-index:150;display:grid;place-items:center;padding:20px}.modal-card{position:relative;background:#fff;border-radius:20px;max-width:720px;width:100%;max-height:90vh;overflow:auto;padding:32px;box-shadow:0 30px 80px rgba(0,0,0,.28)}.modal-close{position:absolute;right:14px;top:12px;border:0;background:transparent;font-size:28px;color:#98a2b3}.result-hero{text-align:center;padding:16px}.result-score{font-size:82px;line-height:1;font-weight:900;color:var(--red);letter-spacing:-.07em}.result-level{display:inline-block;margin:12px 0;background:var(--greenSoft);color:var(--green);padding:6px 10px;border-radius:999px;font-size:12px;font-weight:850}.result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin:25px 0}.result-metric{background:#f7f7f5;border-radius:11px;padding:12px;text-align:center}.result-metric b{font-size:21px;display:block}.result-metric small{font-size:10px;color:var(--muted)}.result-note{font-size:12px;color:var(--muted);background:#f5f4ef;padding:12px;border-radius:10px}.modal-actions{display:flex;justify-content:center;gap:10px;margin-top:22px}
@media(max-width:900px){.hero{grid-template-columns:1fr;min-height:auto;padding-top:70px}.hero-art{height:280px}.sun{width:240px;height:240px}.kanji{font-size:120px}.stats-grid,.section-grid{grid-template-columns:repeat(2,1fr)}.tryout-grid,.resource-grid{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr}.practice-layout{grid-template-columns:1fr}.practice-controls{position:static}.exam-body{grid-template-columns:1fr}.exam-side{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}.section-stepper{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.section-step{display:block;text-align:center}.section-step i{margin:auto}.question-map{grid-template-columns:repeat(10,1fr)}.exam-top{grid-template-columns:1fr auto auto}.exam-meter{grid-column:1/-1;grid-row:2;padding-bottom:8px}.exam-top{height:auto;padding-top:10px}.exam-side{top:0}.exam-main{padding:30px 24px 70px}}
@media(max-width:680px){.topbar{height:auto;min-height:66px;flex-wrap:wrap;padding:12px 20px}.menu-btn{display:block}.topbar nav{display:none;width:100%;padding-bottom:8px}.topbar nav.open{display:grid;grid-template-columns:repeat(2,1fr)}.hero h1{font-size:46px}.hero-art{display:none}.stats-grid,.section-grid,.tryout-grid,.resource-grid,.source-summary{grid-template-columns:1fr}.filter-row{grid-template-columns:1fr}.section-heading{display:block}.section-heading>p{margin-top:12px}.page-number{font-size:65px}.page-hero{padding-top:50px}.question-prompt,.exam-question-title{font-size:21px}.exam-top{grid-template-columns:1fr auto}.exam-exit{grid-column:2}.timer{grid-row:1;grid-column:2;margin-right:75px}.question-map{grid-template-columns:repeat(8,1fr)}.exam-nav{flex-wrap:wrap}.result-grid{grid-template-columns:repeat(2,1fr)}.footer-inner{display:block}.modal-card{padding:24px}.result-score{font-size:64px}}