@charset "UTF-8";
:root{--paper:#faf9f4;--ink:#203e37;--green:#154b43;--green-dark:#103e37;--mint:#e8efe7;--mint-light:#f0f4ec;--line:#d9e0d7;--muted:#61716a;--gold:#e5b94e;--white:#fff;--radius:20px;--font:"Noto Sans JP","Yu Gothic","Hiragino Kaku Gothic ProN","Meiryo",sans-serif}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:104px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{font-weight:800;letter-spacing:.015em;line-height:1.5}button{color:inherit}button:disabled{cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #d59b22;outline-offset:5px}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.icon-defs{position:absolute;width:0;height:0;overflow:hidden}.wrap{width:min(1200px,calc(100% - 96px));margin-inline:auto}.section-space{padding-block:96px}.eyebrow{display:flex;align-items:center;gap:12px;font-size:11px;line-height:1.6;font-weight:700;letter-spacing:.14em;color:var(--green)}.eyebrow-dot{width:7px;height:7px;border-radius:100%;background:var(--green)}.section-number{font-size:13px;letter-spacing:0;border:1px solid #cbd8cd;border-radius:100%;height:30px;width:30px;display:inline-grid;place-items:center}.button{display:inline-flex;justify-content:center;align-items:center;gap:28px;padding:18px 25px;min-height:60px;border:1px solid var(--green);border-radius:8px;background:var(--green);color:white;font-size:15px;line-height:1.4;font-weight:700;transition:background .2s,transform .2s}.button:hover{background:var(--green-dark);transform:translateY(-2px)}.button svg{width:21px;height:21px}.button-small{min-height:44px;padding:12px 17px;font-size:12px;gap:16px}.button-outline{color:var(--green);background:transparent}.button-outline:hover{background:var(--mint)}.button-light{background:var(--paper);border-color:var(--paper);color:var(--green)}.button-light:hover{background:#efeee4}.text-link{display:inline-flex;align-items:center;gap:16px;font-size:13px;font-weight:700}.text-link span{font-size:21px}.text-link:hover{text-decoration:underline;text-underline-offset:5px}.section-description{color:var(--muted);font-size:14px;line-height:2.05}.skip-link{position:fixed;z-index:100;left:20px;top:-100px;background:white;padding:12px}.skip-link:focus{top:16px}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}.mobile-only{display:none}
.site-header{height:88px;border-bottom:1px solid var(--line);background:rgba(250,249,244,.96);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.header-inner{height:100%;display:flex;align-items:center;gap:22px}.brand{display:block;flex-shrink:0}.brand img{width:156px;height:45px;object-fit:contain}.brand-divider{width:1px;height:26px;background:var(--line)}.site-name{font-size:13px;font-weight:700;white-space:nowrap}.header-nav{margin-left:auto;display:flex;gap:26px;font-size:12px;font-weight:700}.header-nav a:hover{color:#317c6b}.header-cta{margin-left:6px}
.hero{display:grid;grid-template-columns:1fr 1.1fr;gap:38px;align-items:center;padding-top:68px;padding-bottom:74px}.hero-copy{padding-block:4px 18px}.hero-label{font-size:12px;font-weight:700;margin-top:24px;color:var(--muted)}.hero h1{font-size:clamp(38px,4.1vw,58px);letter-spacing:-.025em;line-height:1.4;margin:11px 0 24px}.hero-emphasis{display:inline-block;position:relative;z-index:0;white-space:nowrap}.hero-emphasis:after{content:"";height:12px;position:absolute;left:0;right:0;bottom:5px;background:#e9cf79;z-index:-1;transform:rotate(-1deg)}.hero-description{font-size:14px;line-height:2.05;color:#53685e}.hero-actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-top:30px}.hero-actions .button{font-size:14px;gap:24px}.hero-note{display:flex;gap:7px;align-items:center;color:var(--muted);font-size:10px;margin-top:15px}.hero-note svg{width:14px;height:14px}.hero-visual{position:relative;margin-bottom:2px}.hero-picture{position:relative;border-radius:24px 104px 24px 24px;overflow:hidden;background:#dbe8d8;aspect-ratio:4/3;isolation:isolate}.hero-picture>img{width:100%;height:100%;object-fit:cover}.hero-picture:after{content:"";position:absolute;inset:70% 0 0;background:linear-gradient(transparent,rgba(22,49,33,.35));z-index:0}.hero-picture-caption{font:italic 31px/1.2 Georgia,serif;color:white;position:absolute;bottom:23px;left:29px;z-index:1}.hero-sticker{display:flex;gap:13px;align-items:center;position:absolute;bottom:-30px;right:22px;background:#fffdf7;box-shadow:0 8px 30px #183e3715;border:1px solid #e9e4d6;border-radius:12px;padding:17px 20px;transform:rotate(3deg)}.hero-sticker svg{width:35px;height:35px;color:var(--green)}.hero-sticker span{font-size:12px;line-height:1.8}.hero-sticker strong{font-size:14px}.hero-corner{position:absolute;right:0;top:-25px;font-size:9px;letter-spacing:.13em;color:var(--muted)}.promise-strip{display:flex;align-items:center;justify-content:center;gap:0;padding-block:23px;border-block:1px solid var(--line);margin-bottom:0}.promise-strip p{display:flex;align-items:center;justify-content:center;gap:12px;flex:1;font-size:12px;font-weight:700;padding:0 15px}.promise-strip p+p{border-left:1px solid var(--line)}.promise-strip svg{width:21px;height:21px;color:#377561}
.trial-section{margin-top:56px;background:var(--mint-light);position:relative;overflow:hidden}.trial-layout{display:grid;grid-template-columns:.85fr 1fr;gap:100px;align-items:center}.trial-copy h2{font-size:42px;line-height:1.4;margin-block:20px 22px}.serif-number{font:italic 88px/1 Georgia,serif;letter-spacing:-.08em;margin-right:12px;color:var(--green)}.trial-steps{padding:0;margin:26px 0 28px;list-style:none;display:grid;gap:11px}.trial-steps li{font-size:12px;font-weight:700;display:flex;align-items:center;gap:12px}.trial-steps li>span{width:24px;height:24px;background:white;border:1px solid #d8e2d3;border-radius:50%;display:grid;place-items:center;font-size:11px}.trial-source{border-top:1px solid #d0dccb;padding-top:20px;display:flex;align-items:center;gap:12px;font-size:11px;font-weight:700;max-width:375px}.trial-source>svg{width:22px;height:22px}.trial-source small{font-weight:400;color:var(--muted);font-size:11px}.trial-source>span:last-child{margin-left:auto;font-size:21px}.trial-workspace{width:100%;max-width:510px;justify-self:end}.trial-topline{display:flex;align-items:center;justify-content:space-between;margin-bottom:13px}.mini-label{font-size:11px;font-weight:700;letter-spacing:.04em;background:#dfe9d9;color:#42664e;padding:5px 12px;border-radius:5px}#demo-counter{font:13px/1.5 Georgia,serif;letter-spacing:.06em;color:#748275}#demo-counter strong{color:var(--green);font-size:23px;font-weight:400}.progress-track{height:3px;background:#d9e2d4;border-radius:3px;margin-bottom:23px;overflow:hidden}.progress-track span{display:block;height:100%;background:var(--green);width:0;transition:width .25s}.flashcard-shell{position:relative}.flashcard{position:relative;width:100%;min-height:330px;display:block;border:1px solid #d8e2d3;border-radius:19px;background:#fffefb;box-shadow:0 5px 0 #e0e6d8,0 12px 28px #2547320a;padding:27px;overflow:hidden;text-align:center;transition:transform .2s}.flashcard:hover{transform:translateY(-2px)}.flashcard-front{display:flex;flex-direction:column;align-items:center;min-height:274px;justify-content:center}.card-category{display:flex;width:100%;align-items:center;justify-content:space-between;font-size:10px;letter-spacing:.05em;color:var(--muted);font-weight:400;position:absolute;top:25px;left:27px;width:calc(100% - 54px);padding-right:42px}.card-category>span{font-size:8px;letter-spacing:.1em;color:#94a094}.card-word{font-family:Georgia,"Times New Roman",serif;line-height:1.3;font-size:66px;font-weight:400;letter-spacing:-.03em;margin-top:21px}.card-phonetic{font-family:Georgia,serif;font-size:17px;color:#738074;margin-top:7px}.card-turn-hint{display:flex;align-items:center;gap:8px;font-size:11px;position:absolute;bottom:27px;left:0;right:0;justify-content:center;font-weight:400;color:var(--muted)}.card-turn-hint svg{width:17px;height:17px}.sound-button{position:absolute;top:15px;right:16px;display:grid;place-items:center;background:#f0f3e9;border:0;border-radius:50%;width:37px;height:37px;color:var(--green)}.sound-button:hover{background:#dde9d3}.sound-button svg{width:19px;height:19px}.flashcard-back{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:22px;text-align:left;min-height:274px}.card-back-media{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px}.card-back-word{font:24px/1.2 Georgia,serif;display:block;margin-bottom:14px}.card-meaning{display:block;font-size:20px;line-height:1.6;font-weight:700;margin-bottom:8px}.card-part{font-size:10px;font-weight:400;color:var(--muted)}.card-phrase{display:block;border-top:1px solid var(--line);padding-top:15px;margin-top:16px;grid-column:1/-1;font-size:13px;line-height:1.6;font-weight:400}.card-phrase small{font-size:10px;color:var(--muted);display:block;margin-top:4px}.flashcard.is-revealed{background:#fffdf7}.flashcard-back:after{content:"タップすると表に戻ります";position:absolute;bottom:15px;left:0;right:0;text-align:center;font-size:9px;font-weight:400;color:var(--muted)}.grade-actions{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:22px}.grade-button{border-radius:8px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:13px;font-weight:700;min-height:53px;border:1px solid #b9c9b4;background:transparent;transition:background .2s}.grade-button svg{width:18px;height:18px}.grade-known{background:var(--green);color:white;border-color:var(--green)}.grade-again:enabled:hover{background:#e1e9d9}.grade-known:enabled:hover{background:#276554}.grade-button:disabled{opacity:.38}.trial-instruction{text-align:center;font-size:10px;color:var(--muted);margin-top:14px;min-height:18px}.demo-disclaimer{text-align:center;font-size:9px;color:#778376;line-height:1.9;margin-top:16px}.demo-result{text-align:center;padding:22px 20px 6px;min-height:430px;background:#fffdf7;border:1px solid var(--line);border-radius:19px}.result-icon{display:grid;place-items:center;width:48px;height:48px;margin:0 auto 10px;border-radius:50%;background:#e5eedd;color:var(--green)}.result-icon svg{width:26px;height:26px}.demo-result>.eyebrow{justify-content:center;font-size:9px}.demo-result h3{font-size:25px;margin-top:8px}.demo-result>p:not(.eyebrow){font-size:12px;color:var(--muted);margin-top:9px}.result-totals{display:flex;justify-content:center;margin:20px 0}.result-totals>p{width:40%;font-size:11px;color:var(--muted)}.result-totals>p+p{border-left:1px solid var(--line)}.result-totals strong{display:block;font:37px/1.5 Georgia,serif;color:var(--green)}.result-totals strong span{font-family:var(--font);font-size:11px;padding-left:6px}.demo-result .button{width:100%;min-height:45px;padding:12px 14px;font-size:12px;margin-bottom:10px;gap:12px}.restart-link{background:transparent;border:0;text-decoration:underline;text-underline-offset:4px;font-size:10px;margin-top:4px;padding:9px}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:32px}.section-heading h2{font-size:33px;margin-top:15px;letter-spacing:-.02em}.section-heading>p{font-size:12px;line-height:1.9;color:var(--muted);padding-bottom:5px}.course-filters{display:flex;align-items:center;gap:9px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:22px}.course-filters button{border:1px solid var(--line);background:transparent;color:var(--muted);padding:10px 21px;min-height:43px;border-radius:6px;font-size:12px;white-space:nowrap;transition:background .2s,color .2s}.course-filters button[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:white;font-weight:700}.course-filters button:hover:not([aria-pressed="true"]){background:var(--mint)}.filter-status{font-size:10px;color:var(--muted);margin-block:15px 35px;text-align:right}.course-group+.course-group{margin-top:43px}.course-group-heading{display:flex;align-items:center;gap:15px;margin-bottom:18px}.course-group-heading>span{font:italic 19px/1 Georgia,serif;color:#75816b}.course-group-heading h3{font-size:19px;letter-spacing:.03em}.course-group-heading p{font-size:11px;color:var(--muted);margin-left:auto}.course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.course-card{display:grid;grid-template-columns:40% 1fr;background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s}.course-card:hover{border-color:#99b19d;box-shadow:0 7px 25px #24433408}.course-media{margin:0;align-self:stretch;overflow:hidden;background:#dfe6d6}.course-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .4s}.course-card:hover .course-media img{transform:scale(1.025)}.course-copy{padding:22px 21px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.course-audience{color:var(--muted);font-size:9px;letter-spacing:.04em;margin-bottom:7px}.course-copy h4{font-size:20px;line-height:1.5;font-weight:800}.course-copy h4 .course-edition{display:block;font-size:16px;font-weight:700}.course-description{font-size:11px;color:var(--muted);line-height:1.85;margin-top:8px}.course-facts{font-size:10px;margin-top:13px;display:flex;align-items:center;gap:11px;color:var(--muted)}.course-facts strong{font-family:Georgia,serif;color:var(--ink);font-weight:400;font-size:15px;margin-right:3px}.course-actions{grid-column:1/-1;display:flex;align-items:center;gap:20px;border-top:1px solid #e5e9df;padding:14px 19px}.course-primary{display:flex;align-items:center;justify-content:space-between;gap:20px;flex:1;font-size:12px;font-weight:700;background:var(--green);color:white;border-radius:5px;padding:10px 15px}.course-primary svg{width:17px;height:17px}.course-primary:hover{background:#286959}.course-quiz{font-size:11px;white-space:nowrap;padding:8px 0}.course-quiz:hover{text-decoration:underline}.course-grid--single .course-card{grid-column:1/-1;grid-template-columns:33% 1fr}.course-grid--single .course-media{grid-row:1/3}.course-grid--single .course-copy{padding:27px 36px}.course-grid--single .course-copy h4{font-size:28px}.course-grid--single .course-description{font-size:13px}.course-grid--single .course-facts{font-size:11px}.course-grid--single .course-actions{grid-column:2/3;margin-inline:36px;padding:17px 0 22px;max-width:410px}.course-grid--single .course-primary{flex:none;min-width:220px}.course-grid--single .course-facts strong{font-size:18px}.legacy-link{border-block:1px solid var(--line);margin-top:45px;padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted)}.legacy-link a{display:flex;align-items:center;gap:20px;font-size:12px;font-weight:700;color:var(--ink)}.legacy-link svg{width:19px;height:19px}.legacy-link a:hover{text-decoration:underline}
.howto-section{background:#ecefe5}.howto-section .section-heading{margin-bottom:45px}.howto-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:45px}.howto-grid article{position:relative;padding-top:7px}.howto-grid article+article{border-left:1px solid #cdd8c8;padding-left:40px}.howto-number{font:italic 15px/1 Georgia,serif;display:block;color:#6c7c64;margin-bottom:25px}.howto-grid article>svg{width:38px;height:38px;stroke-width:1.3;margin-bottom:18px}.howto-grid h3{font-size:20px;margin-bottom:13px}.howto-grid p{font-size:12px;line-height:2;color:var(--muted)}.howto-keyword{display:block;font-size:10px;font-weight:700;letter-spacing:.03em;color:#4b6b52;margin-top:20px}.faq-section{display:grid;grid-template-columns:.7fr 1fr;gap:80px}.faq-section h2{font-size:33px;margin:15px 0}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;list-style:none;font-weight:700;font-size:13px;padding:23px 35px 23px 0;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";font-size:21px;font-weight:400;position:absolute;right:0;top:16px;color:#6f846d}.faq-list details[open]>summary:after{content:"−"}.faq-list details p{font-size:12px;line-height:2;color:var(--muted);padding:0 25px 24px 0}.closing-section{background:var(--green);color:var(--paper);padding:70px 0}.closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.closing-inner .eyebrow{color:#b9d2bf;font-size:10px}.closing-inner h2{font-size:37px;line-height:1.55;margin-top:18px;letter-spacing:.03em}.closing-inner>div:last-child{text-align:center;padding-right:70px}.closing-inner>div:last-child p{font-size:11px;color:#bbd0bf;margin-top:16px}.closing-inner .button{min-width:290px}.site-footer{padding-block:45px 26px}.footer-top{display:flex;align-items:center;gap:25px}.footer-top>p{font-size:11px;color:var(--muted)}.footer-top nav{display:flex;gap:22px;margin-left:auto;font-size:11px}.footer-top nav a:hover{text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;border-top:1px solid var(--line);margin-top:30px;padding-top:21px;color:var(--muted);font-size:9px;line-height:1.9}.footer-bottom>p:last-child{text-align:right;font-size:8px}.mobile-dock{display:none}
/* Course directory */
.directory-page .header-nav{margin-left:auto}.directory-header{padding-block:42px 36px}.breadcrumbs{display:flex;gap:10px;align-items:center;font-size:11px;color:var(--muted);margin-bottom:30px}.breadcrumbs a{text-decoration:underline;text-underline-offset:4px}.directory-hero{display:grid;grid-template-columns:1fr 270px;gap:50px;align-items:center}.directory-hero h1{font-size:37px;margin-top:10px}.directory-hero .course-description{font-size:13px;margin-top:15px}.directory-hero img{width:270px;aspect-ratio:4/3;object-fit:cover;border-radius:12px 55px 12px 12px}.directory-hero .course-facts{font-size:12px;margin-top:17px}.directory-hero .course-facts strong{font-size:22px}.directory-tools{display:flex;gap:15px;justify-content:space-between;align-items:center;margin-top:30px;padding-block:22px;border-block:1px solid var(--line)}.unit-search{position:relative;max-width:430px;flex:1}.unit-search label{display:block;font-size:10px;font-weight:700;margin-bottom:7px}.unit-search input{border:1px solid #bccabd;border-radius:6px;background:#fffefb;color:var(--ink);padding:12px 15px;min-height:45px;width:100%;font-size:13px}.directory-quiz-link{display:flex;align-items:center;gap:15px;font-size:12px;font-weight:700}.directory-quiz-link svg{width:18px;height:18px}.directory-content{padding-block:10px 80px}.directory-count{font-size:11px;color:var(--muted);margin-bottom:27px}.chapter-section+.chapter-section{margin-top:38px}.chapter-title{font-size:19px;margin-bottom:17px}.chapter-title span{display:inline-block;font:italic 18px/1.4 Georgia,serif;border:1px solid var(--line);border-radius:50%;width:37px;height:37px;text-align:center;padding-top:5px;margin-right:12px;color:#5b7663}.unit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.unit-link{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:9px;padding:21px;min-height:160px;transition:background .2s,border-color .2s}.unit-link:hover{background:var(--mint-light);border-color:#9cb09e}.unit-eyebrow{font-size:9px;color:var(--muted);display:flex;justify-content:space-between;margin-bottom:9px}.unit-link h3{font-size:16px;line-height:1.65}.unit-link p{font-size:10px;color:var(--muted);margin-top:5px;line-height:1.7}.unit-start{font-size:11px;color:var(--green);font-weight:700;display:flex;align-items:center;justify-content:space-between;padding-top:17px;margin-top:auto}.unit-start svg{width:17px;height:17px}.directory-back{font-size:12px;margin-top:38px;display:inline-flex;align-items:center;gap:20px}.directory-empty{padding:45px;text-align:center;border:1px solid var(--line);border-radius:12px;color:var(--muted);font-size:13px}.directory-noscript{border:1px solid var(--line);padding:25px;font-size:13px}.directory-fallback{padding-block:50px}.directory-fallback a{text-decoration:underline;text-underline-offset:4px}.directory-note{margin-top:20px;font-size:10px;color:var(--muted)}
@media(min-width:1500px){.hero{gap:70px}.hero h1{font-size:60px}}
@media(max-width:1190px){.wrap{width:calc(100% - 64px)}.header-inner{gap:16px}.header-nav{gap:16px}.header-cta{font-size:11px;gap:9px;padding-inline:12px}.brand img{width:137px}.site-name{font-size:12px}.hero{gap:25px;padding-block:55px 65px}.hero h1{font-size:45px}.hero-actions{gap:17px}.hero-actions .button{padding-inline:18px;font-size:12px}.hero-actions .text-link{font-size:11px}.trial-layout{gap:55px}.trial-copy h2{font-size:38px}.course-copy{padding:17px 16px}.course-copy h4{font-size:18px}.course-copy h4 .course-edition{font-size:15px}.course-media{align-self:center}.course-card{grid-template-columns:38% 1fr}.course-facts{gap:7px}.course-grid--single .course-copy{padding:24px 30px}.course-grid--single .course-actions{margin-inline:30px}.closing-inner>div:last-child{padding-right:0}.howto-grid{gap:30px}.howto-grid article+article{padding-left:28px}.footer-top{gap:20px}.footer-top nav{gap:17px}.footer-top>p{display:none}}
@media(max-width:960px){.header-nav{display:none}.header-cta{margin-left:auto}.hero{grid-template-columns:1fr 1fr;gap:30px}.hero h1{font-size:36px}.hero-label{font-size:10px}.hero-description{font-size:12px}.hero-actions{flex-direction:column;align-items:flex-start;gap:15px}.hero-picture{border-top-right-radius:70px}.hero-note{font-size:9px}.hero-sticker{right:10px;bottom:-40px;padding:12px 15px}.hero-sticker span{font-size:10px}.hero-sticker strong{font-size:11px}.hero-sticker svg{width:29px}.hero-picture-caption{font-size:23px;left:19px;bottom:18px}.hero-corner{font-size:7px}.promise-strip p{font-size:10px;gap:8px;padding-inline:12px}.section-space{padding-block:72px}.trial-layout{grid-template-columns:.8fr 1fr;gap:30px}.trial-copy h2{font-size:34px}.trial-copy .section-description{font-size:12px}.trial-steps li{font-size:10px;gap:8px}.trial-steps li>span{height:21px;width:21px}.trial-source{font-size:10px}.trial-source small{font-size:9px}.flashcard{padding:22px;min-height:310px}.flashcard-front{min-height:264px}.flashcard-back{gap:14px;min-height:264px}.card-meaning{font-size:17px}.card-back-word{font-size:22px}.card-phrase{font-size:11px;margin-top:4px}.card-category>span{display:none}.demo-disclaimer{font-size:8px}.course-copy h4{font-size:16px}.course-copy h4 .course-edition{font-size:13px}.course-description{font-size:10px}.course-copy{padding:16px 12px}.course-grid{gap:16px}.course-facts{font-size:8px;gap:6px;flex-wrap:wrap}.course-facts strong{font-size:13px}.course-actions{gap:13px;padding:12px}.course-primary{font-size:10px;gap:10px;padding:11px}.course-quiz{font-size:9px}.section-heading h2{font-size:28px}.section-heading>p{font-size:10px}.howto-grid{gap:23px}.howto-grid h3{font-size:16px}.howto-grid p{font-size:11px}.howto-grid article+article{padding-left:23px}.faq-section{gap:40px;grid-template-columns:.65fr 1fr}.faq-section h2{font-size:28px}.closing-inner h2{font-size:32px}.closing-inner .button{min-width:260px;font-size:13px}.directory-hero h1{font-size:30px}.unit-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){html{scroll-padding-top:83px}.wrap{width:calc(100% - 40px)}body{font-size:14px;padding-bottom:66px}.site-header{height:70px}.header-inner{gap:13px}.brand img{width:119px;height:36px}.brand-divider{height:23px}.site-name{font-size:10px}.header-cta{font-size:10px;min-height:36px;padding:10px 11px;gap:8px}.header-cta svg{width:16px;height:16px}.header-cta{font-size:0;gap:4px}.header-cta:before{content:"10語を試す";font-size:10px}.hero{grid-template-columns:1fr;gap:34px;padding-top:35px;padding-bottom:57px}.hero-copy{padding-bottom:0}.eyebrow{font-size:9px;gap:9px}.hero-label{margin-top:20px;font-size:11px}.hero h1{font-size:clamp(35px,8.9vw,53px);line-height:1.43;margin-block:10px 19px}.hero-description{font-size:12px;line-height:1.95}.hero-description br:nth-child(2){display:none}.hero-actions{margin-top:24px;flex-direction:row;align-items:center;gap:22px}.hero-actions .button{font-size:12px;min-height:53px;padding-inline:18px;gap:17px}.hero-actions .text-link{font-size:10px;gap:8px}.hero-note{font-size:9px;margin-top:12px}.hero-visual{margin:0 0 2px}.hero-picture{border-radius:16px 73px 16px 16px}.hero-picture-caption{font-size:28px;bottom:21px;left:23px}.hero-sticker{right:15px;bottom:-25px;padding:13px 16px;gap:12px}.hero-sticker span{font-size:10px}.hero-sticker strong{font-size:12px}.hero-corner{display:none}.promise-strip{padding-block:18px;flex-wrap:wrap;row-gap:14px}.promise-strip p{font-size:9px;padding:0 8px;gap:6px;flex:1 1 auto}.promise-strip p:last-child{flex-basis:100%;border-left:0}.promise-strip svg{width:17px;height:17px}.section-space{padding-block:56px}.trial-section{margin-top:35px}.trial-layout{grid-template-columns:1fr;gap:33px}.trial-copy h2{font-size:34px;line-height:1.5;margin-block:16px}.trial-copy h2>br{display:none}.serif-number{font-size:63px;margin-inline:4px 10px}.trial-copy .section-description{font-size:12px}.trial-copy .section-description br{display:none}.trial-steps{gap:10px;margin-block:20px}.trial-steps li{font-size:11px}.trial-source{max-width:100%;padding-top:16px;font-size:10px}.trial-source small{font-size:9px}.trial-workspace{max-width:510px;justify-self:center}.trial-topline{margin-bottom:10px}.progress-track{margin-bottom:18px}.flashcard{min-height:315px;padding:23px}.flashcard-front{min-height:267px}.card-word{font-size:65px}.card-category>span{display:block;font-size:7px}.flashcard-back{min-height:267px;gap:15px}.card-meaning{font-size:20px}.card-back-word{font-size:24px}.card-phrase{font-size:12px;padding-top:11px;margin-top:0}.card-phrase small{font-size:10px}.grade-actions{gap:11px;margin-top:20px}.grade-button{min-height:50px;font-size:12px}.trial-instruction{font-size:9px}.demo-disclaimer{font-size:8px;max-width:320px;margin-inline:auto}.demo-result{min-height:420px}.section-heading{display:block;margin-bottom:26px}.section-heading 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.course-edition{font-size:15px}.course-description{font-size:10px;line-height:1.8;margin-top:7px}.course-audience{font-size:8px;margin-bottom:5px}.course-facts{font-size:9px;margin-top:11px;gap:9px}.course-facts strong{font-size:14px}.course-actions{padding:12px 14px;gap:18px}.course-primary{font-size:11px;min-height:42px;padding:10px 13px}.course-quiz{font-size:10px}.course-grid--single .course-card{grid-template-columns:40% 1fr}.course-grid--single .course-media{grid-row:auto}.course-grid--single .course-copy{padding:19px 16px}.course-grid--single .course-copy h4{font-size:20px}.course-grid--single .course-description{font-size:10px}.course-grid--single .course-facts{font-size:9px}.course-grid--single .course-facts strong{font-size:14px}.course-grid--single .course-actions{grid-column:1/-1;max-width:none;margin:0;padding:12px 14px}.course-grid--single .course-primary{flex:1;min-width:0}.legacy-link{display:block;margin-top:30px;padding-block:20px;font-size:10px}.legacy-link a{font-size:11px;gap:14px;margin-top:11px;justify-content:space-between}.howto-section .section-heading{margin-bottom:25px}.howto-grid{grid-template-columns:1fr;gap:0}.howto-grid article{padding:23px 0 24px 65px;border-top:1px solid #cdd8c8;position:relative}.howto-grid article+article{border-left:0;padding-left:65px}.howto-grid article>svg{position:absolute;left:3px;top:59px;width:33px;height:33px}.howto-number{font-size:14px;margin-bottom:10px}.howto-grid h3{font-size:19px;margin-bottom:9px}.howto-grid p{font-size:11px}.howto-keyword{font-size:9px;margin-top:12px}.faq-section{grid-template-columns:1fr;gap:27px}.faq-section h2{font-size:28px;margin-block:13px 10px}.faq-section .section-description{font-size:11px}.faq-list summary{font-size:12px;padding-block:21px}.faq-list details p{font-size:11px}.closing-section{padding-block:48px}.closing-inner{display:block}.closing-inner h2{font-size:30px;margin-top:15px}.closing-inner>div:last-child{text-align:left;margin-top:27px}.closing-inner .button{min-width:275px;font-size:12px;min-height:54px}.closing-inner>div:last-child p{font-size:10px}.site-footer{padding-top:32px;padding-bottom:25px}.footer-top{align-items:flex-start;flex-wrap:wrap;gap:23px}.footer-top .brand img{width:127px}.footer-top nav{width:100%;margin:0;justify-content:space-between;gap:15px;font-size:10px}.footer-bottom{display:block;margin-top:24px;padding-top:19px;font-size:8px}.footer-bottom>p:last-child{text-align:left;font-size:7px;margin-top:13px}.mobile-dock{display:grid;grid-template-columns:1fr 1.35fr;gap:9px;background:rgba(250,249,244,.98);border-top:1px solid var(--line);position:fixed;bottom:0;left:0;right:0;padding:9px 20px max(9px,env(safe-area-inset-bottom));z-index:30}.mobile-dock>a{display:flex;align-items:center;justify-content:center;gap:18px;border:1px solid #bfcbbd;border-radius:6px;min-height:43px;font-size:11px;font-weight:700}.mobile-dock>a:last-child{background:var(--green);color:white;border-color:var(--green)}.mobile-dock svg{height:17px;width:17px}.directory-page{padding-bottom:0}.directory-page .header-cta{font-size:10px;min-height:37px}.directory-page .header-cta:before{content:none}.directory-header{padding-block:27px 24px}.breadcrumbs{font-size:9px;gap:6px;margin-bottom:23px;flex-wrap:wrap}.directory-hero{grid-template-columns:1fr 100px;gap:18px;align-items:start}.directory-hero img{width:100px;border-radius:8px 25px 8px 8px;margin-top:24px}.directory-hero h1{font-size:25px;line-height:1.6}.directory-hero .course-description{font-size:11px;margin-top:11px}.directory-hero .course-facts{font-size:10px;gap:10px}.directory-hero .course-facts strong{font-size:17px}.directory-tools{display:block;margin-top:25px;padding-block:19px}.unit-search{max-width:100%}.unit-search input{font-size:12px}.directory-quiz-link{font-size:11px;margin-top:19px;justify-content:flex-end}.directory-content{padding-bottom:45px}.directory-count{font-size:10px;margin-bottom:23px}.chapter-title{font-size:16px;line-height:1.8}.chapter-title span{width:31px;height:31px;font-size:15px;padding-top:4px;margin-right:9px}.unit-grid{grid-template-columns:1fr;gap:11px}.unit-link{min-height:150px;padding:18px}.unit-link h3{font-size:16px}.unit-start{padding-top:12px}.directory-empty{padding:30px;font-size:12px}.directory-note{font-size:9px}.directory-page .closing-section{display:none}}
@media(max-width:370px){.wrap{width:calc(100% - 32px)}.header-inner{gap:10px}.brand img{width:108px}.site-name{font-size:9px}.hero-actions{gap:12px}.hero-actions .button{font-size:11px;padding-inline:13px;gap:10px}.hero-actions .text-link{font-size:9px;gap:5px}.hero h1{font-size:34px}.course-group-heading p{width:100%;margin-left:28px}.course-copy{padding:15px 12px}.course-copy h4{font-size:16px}.course-copy h4 .course-edition{font-size:14px}.course-facts{font-size:8px;gap:6px}.course-facts strong{font-size:12px}.card-meaning{font-size:18px}.flashcard{padding:20px}.grade-button{font-size:11px}.mobile-dock{padding-inline:16px}}
/* Keep intrinsic HTML image dimensions from expanding responsive card layouts. */
html{scroll-behavior:auto}
.header-cta{white-space:nowrap;flex-shrink:0}
img{height:auto}.brand img{height:45px}.hero-picture>img,.course-media img{height:100%}.card-back-media{height:auto;align-self:center}.course-media{align-self:center;aspect-ratio:4/3}.directory-hero img{height:auto}
@media(max-width:700px){.brand img{height:36px}.hero-picture-caption{display:none}}
@media(max-width:960px){.hero-picture-caption{display:none}}
@media(max-width:370px){.brand-divider{display:none}.header-cta{padding-inline:8px;gap:3px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}