@charset "UTF-8";
:root{--ink:#24283f;--muted:#6e7184;--line:#e6e8ef;--accent:#6450c8;--purple-light:#f1eefb;--paper:#fff;--bg:#f8f9fc;font-family:"Noto Sans JP","Yu Gothic UI","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #8271db;outline-offset:5px}[hidden]{display:none!important}.topbar{height:94px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fff}.brand{display:flex;gap:14px;align-items:center;font-size:20px;font-weight:800;letter-spacing:.025em}.brand small{display:block;font-size:10px;letter-spacing:.17em;margin-top:5px;font-weight:600;color:var(--muted)}.brand-icon{display:grid;grid-template-columns:auto auto;align-items:center;justify-content:center;gap:1px;width:42px;height:46px;background:var(--ink);border-radius:9px;font:italic 800 30px Georgia;color:#fff}.brand-icon span{color:#c4bafd}.top-link{font-size:14px;font-weight:600;display:flex;gap:36px}.top-link span{color:var(--accent)}.layout{max-width:1510px;margin:0 auto;display:grid;grid-template-columns:252px minmax(0,1fr)}.sidebar{padding:48px 24px 30px 28px;border-right:1px solid var(--line)}.nav-title{font-size:12px;letter-spacing:.12em;color:#777c90;margin:0 0 25px 10px}.all-link{display:flex;justify-content:space-between;padding:14px 13px;border-radius:7px;font-size:15px;font-weight:650}.active{color:var(--accent);background:var(--purple-light)}.all-link span{font:14px ui-monospace,monospace}.nav-label{font-size:12px;color:var(--muted);margin:31px 10px 12px}.category-link{display:flex;align-items:center;gap:10px;padding:14px 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em{font-style:normal;color:var(--accent)}.intro-count{display:flex;flex-direction:column;align-items:center;border-left:1px solid #dddfea;padding:4px 0 4px 36px}.intro-count strong{font:500 54px Georgia,serif;letter-spacing:-.04em}.intro-count span{font-size:12px;color:var(--muted);margin-top:8px}.intro>p{font-size:14px;line-height:1.9;color:var(--muted);margin:0}.mobile-break{display:none}.search-area{margin-top:29px}.search-box{display:flex;align-items:center;gap:15px;padding:0 20px;height:61px;border:1px solid #d4d7e3;border-radius:9px;background:#fff;box-shadow:0 3px 9px #25283e04}.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #6450c815}.search-box svg{width:23px;height:23px;color:var(--accent);flex-shrink:0}.search-box input{width:100%;min-width:0;border:0;background:transparent;font-size:15px;color:var(--ink);outline:none}.search-box input:focus-visible{outline:none}.search-box input::placeholder{color:#8b8d9a}.search-meta{display:flex;justify-content:space-between;gap:16px;font-size:12px;color:var(--muted);margin:12px 2px 0}.list-heading{display:flex;align-items:center;gap:17px;margin:40px 0 27px;border-bottom:1px solid var(--line);padding-bottom:18px}.list-heading h2{font-size:20px;margin:0}.list-heading>span{font-size:11px;letter-spacing:.14em;color:#9295a5}.term-group{scroll-margin-top:24px;margin-bottom:34px}.group-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.group-heading h2{font-size:16px;margin:0;display:flex;gap:12px;align-items:center}.group-heading h2 span{font:12px ui-monospace,monospace;color:var(--accent);border-bottom:1px solid #a398d5;padding-bottom:3px}.group-heading>span{font-size:12px;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.term-card{display:flex;flex-direction:column;padding:21px 20px 18px;border:1px solid var(--line);border-radius:9px;background:#fff;transition:border-color .15s,box-shadow .15s,transform .15s;min-height:216px}.term-card:hover{border-color:#ada1d9;box-shadow:0 7px 22px #29204508;transform:translateY(-2px)}.card-top{display:flex;gap:10px;justify-content:space-between;align-items:flex-start}.english{color:#77798e;font-size:11px;line-height:1.7;letter-spacing:.015em;overflow-wrap:anywhere}.card-arrow{font-size:18px;color:#aaa4bf;line-height:1}.term-card h3{font-size:17px;line-height:1.6;margin:10px 0 8px;font-weight:700;overflow-wrap:anywhere}.term-card p{font-size:14px;line-height:1.9;color:#65697d;margin:0 0 21px}.read-more{margin-top:auto;color:var(--accent);font-size:12px;font-weight:600;display:flex;align-items:center;gap:9px}.read-more span{font-size:16px}footer{max-width:1400px;margin:0 auto;border-top:1px solid var(--line);padding:26px 5%;display:flex;justify-content:space-between;gap:24px;font-size:12px;color:var(--muted)}footer a{font-weight:650;color:var(--ink)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:absolute;top:-80px;left:12px;background:#fff;padding:12px;z-index:100}.skip:focus{top:12px}#empty{padding:48px 12px;text-align:center;color:var(--muted)}#empty h2{font-size:20px;color:var(--ink)}#reset{cursor:pointer;border:1px solid #d3ccec;background:var(--purple-light);color:var(--accent);padding:12px 20px;border-radius:7px;margin-top:15px}.breadcrumb{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--muted);margin-bottom:39px}.breadcrumb a:hover{color:var(--accent)}.article{max-width:780px;margin:0 auto}.article-category{font-size:12px;background:var(--purple-light);color:var(--accent);padding:7px 11px;border-radius:4px}.article-english{font-size:14px;letter-spacing:.06em;color:var(--muted);margin:30px 0 12px}.article h1{font-size:clamp(26px,3.2vw,40px);line-height:1.6;margin:0 0 22px;overflow-wrap:anywhere}.article-summary{font-size:20px;line-height:1.95;margin:0;border-bottom:1px solid var(--line);padding-bottom:32px}.article-body{font-size:16px;line-height:2}.article-body section{margin-top:36px}.article-body h2{font-size:19px;margin:0 0 13px}.article-body p{margin:0;color:#4e5569}.example{padding:28px 30px;background:var(--purple-light);border-radius:9px;border-left:3px solid #9f90d8}.example .eyebrow{font-size:11px;margin-bottom:12px}.related>div{display:flex;flex-wrap:wrap;gap:10px}.related a{font-size:14px;padding:10px 15px;background:#fff;border:1px solid var(--line);border-radius:6px}.related a span{margin-left:12px;color:var(--accent)}.related a:hover{border-color:#a79cce}.source{border-top:1px solid var(--line);padding-top:25px}.source h2{font-size:14px}.source a{font-size:13px;color:var(--accent);text-decoration:underline;text-underline-offset:4px}.back{display:inline-block;margin-top:45px;font-size:14px;color:var(--accent)}
@media(min-width:1500px){main{padding-left:66px;padding-right:66px}}@media(max-width:1180px){.layout{grid-template-columns:222px minmax(0,1fr)}.sidebar{padding-left:16px;padding-right:16px}main{padding:36px 32px 65px}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.category-link{font-size:13px;gap:7px}.intro-count{padding-left:25px}}@media(max-width:760px){.topbar{height:78px;padding:0 22px}.brand{font-size:17px;gap:10px}.brand-icon{width:36px;height:39px;font-size:26px}.brand small{font-size:9px}.top-link{font-size:12px;gap:12px}.layout{display:block}.sidebar{padding:16px 22px;border-right:0;border-bottom:1px solid var(--line)}.sidebar .nav-title,.nav-label,.sidebar-note,.all-link{display:none}.sidebar nav{display:flex;gap:8px;overflow-x:auto;padding:1px 1px 7px}.category-link{white-space:nowrap;flex-shrink:0;font-size:12px;border:1px solid var(--line);background:#fff;padding:8px 12px}.nav-num,.category-count{display:none}main{padding:30px 22px 55px}.intro h1{font-size:34px}.intro-count strong{font-size:44px}.intro-count{padding-left:20px}.intro>p{font-size:13px}.mobile-break{display:block}.search-box{height:58px;padding:0 14px;gap:9px}.search-box input{font-size:14px}.search-meta{font-size:11px}.cards{gap:12px}.term-card{padding:17px 16px}.term-card h3{font-size:16px}.term-card p{font-size:14px}.list-heading{margin-top:32px}.article-summary{font-size:18px}.example{padding:23px 20px}.breadcrumb{font-size:12px;margin-bottom:30px}footer{padding:25px 22px}.article-body{line-height:1.95}}@media(max-width:490px){.cards{grid-template-columns:1fr}.term-card{min-height:0;padding:20px}.term-card p{margin-bottom:15px}.term-card h3{font-size:18px}.english{font-size:12px}.read-more{font-size:13px}.intro h1{font-size:32px}.intro-count strong{font-size:40px}.intro-count span{font-size:11px}.top-link span{display:none}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}