.ad-page{background:var(--paper);min-height:100dvh;color:var(--navy)}.ad-nav{z-index:var(--z-sticky);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0f1828e0;border-bottom:1px solid #ffffff14;justify-content:space-between;align-items:center;height:60px;padding:0 40px;display:flex;position:fixed;top:0;left:0;right:0}.ad-nav-logo{align-items:center;display:inline-flex}.ad-nav-logo img{width:auto;height:30px}.ad-nav-links{align-items:center;gap:8px;display:flex}.ad-nav-links a,.ad-nav-links button{color:#ffffffb8;font:inherit;cursor:pointer;background:0 0;border:0;border-radius:6px;padding:8px 12px;font-size:13px;text-decoration:none}.ad-nav-links a:hover,.ad-nav-links button:hover{color:#fff;background:#ffffff14}.ad-hero{background:var(--navy);align-items:center;min-height:100dvh;padding:104px 60px 44px;display:grid;position:relative;overflow:hidden}.ad-hero-bg{position:absolute;inset:0}.ad-hero-bg img{-o-object-fit:cover;object-fit:cover;-o-object-position:center right;object-position:center right;opacity:.22;filter:saturate(.8)contrast(1.05)}.ad-hero-shade{background:linear-gradient(90deg,#0f1828fa 0%,#1a2744e0 44%,#1a27448a 100%),radial-gradient(circle at 70% 30%,#d4a0172e,#0000 34%);position:absolute;inset:0}.ad-hero-content{z-index:2;max-width:680px;padding-top:20px;position:relative}.ad-eyebrow,.ad-section-kicker{color:var(--gold-lt);letter-spacing:3px;margin:0 0 12px;font-size:11px;font-weight:900;line-height:1.5}.ad-hero h1{color:#fff;max-width:640px;font-family:var(--font-noto-serif-jp), "Noto Serif JP", serif;letter-spacing:0;margin:0;font-size:50px;font-weight:900;line-height:1.22}.ad-lead{color:#ffffffb8;max-width:560px;margin:22px 0 0;font-size:16px;line-height:2}.ad-proof-row{flex-wrap:wrap;gap:10px;margin-top:26px;display:flex}.ad-proof-row span{color:#ffffffc7;background:#ffffff0f;border:1px solid #ffffff29;border-radius:7px;align-items:center;gap:7px;min-height:34px;padding:7px 12px;font-size:12px;line-height:1.4;display:inline-flex}.ad-proof-row svg,.ad-primary-cta svg,.ad-demo-badge svg{fill:currentColor;flex:none;width:16px;height:16px}.ad-cta-row{flex-wrap:wrap;align-items:center;gap:14px;margin-top:34px;display:flex}.ad-primary-cta{background:var(--red);color:#fff;min-height:48px;font:inherit;cursor:pointer;border:0;border-radius:7px;justify-content:center;align-items:center;gap:9px;padding:13px 24px;font-size:15px;font-weight:900;text-decoration:none;display:inline-flex;box-shadow:0 14px 34px #00000047}.ad-primary-cta:hover{filter:brightness(1.06);transform:translateY(-1px)}.ad-secondary-cta{color:#ffffffb8;padding:12px 2px;font-size:14px;font-weight:800;text-decoration:none}.ad-secondary-cta:hover{color:#fff}.ad-hero-demo-wrap{z-index:3;width:min(520px,42vw);position:absolute;bottom:40px;right:60px}.ad-demo-badge{color:var(--navy);background:#fbf8efeb;border:1px solid #ffffff59;border-radius:7px;align-items:center;gap:8px;margin-bottom:10px;padding:8px 12px;font-size:12px;font-weight:900;display:inline-flex;box-shadow:0 12px 32px #0000002e}.ad-product-demo{background:#fbf8eff2;border:1px solid #ffffff38;border-radius:12px;padding:18px;position:relative;box-shadow:0 28px 78px #00000047}.ad-demo-top{color:var(--soft);letter-spacing:1px;justify-content:space-between;gap:20px;margin-bottom:16px;font-size:11px;font-weight:800;display:flex}.ad-demo-line{flex-wrap:wrap;align-items:flex-end;gap:7px;padding:8px 0 16px;display:flex}.ad-token{flex-direction:column;align-items:center;gap:4px;min-width:26px;display:inline-flex}.ad-token b{color:#1a274452;font-family:var(--font-noto-serif-jp), "Noto Serif JP", serif;font-size:24px;line-height:1.1}.ad-token small{color:#1a274459;min-height:14px;font-size:10px}.ad-token.done b{color:#2a6ada}.ad-token.current b{color:var(--navy);border-bottom:3px solid var(--red)}.ad-token.phrase b{color:var(--red)}.ad-token.punct b{color:#1a274433}.ad-demo-translation{color:var(--mid);background:#1a27440f;border-radius:7px;margin-top:4px;padding:10px 12px;font-size:13px;line-height:1.6}.ad-detail-strip{border-top:1px solid var(--border);grid-template-columns:minmax(132px,.8fr) 1.3fr;gap:14px;margin-top:12px;padding-top:12px;display:grid}.ad-detail-strip strong{color:var(--navy);font-size:15px;display:block}.ad-mini-label{color:var(--red);margin-bottom:4px;font-size:11px;font-weight:900;display:block}.ad-detail-strip p{color:var(--soft);margin:0;font-size:12px;line-height:1.75}.ad-flashcard{border:1px solid var(--border);background:#fff;border-radius:10px;flex-direction:column;justify-content:center;min-height:230px;padding:24px;display:flex}.ad-memory-state{color:#fff;letter-spacing:1px;border-radius:5px;align-self:flex-start;margin-bottom:12px;padding:3px 9px;font-size:10px;font-weight:900}.ad-memory-state.due{background:var(--red)}.ad-memory-state.learning{background:var(--gold-lt)}.ad-memory-state.mastered{background:#2d8b5a}.ad-flashcard strong{color:var(--navy);font-family:var(--font-noto-serif-jp), "Noto Serif JP", serif;font-size:34px;line-height:1.25}.ad-flashcard p{color:var(--mid);margin:14px 0 12px;font-size:17px;font-weight:800}.ad-flashcard small{color:var(--soft);font-size:12px;line-height:1.7}.ad-vocab-actions{justify-content:center;gap:8px;margin-top:14px;display:flex}.ad-vocab-actions button{border:1px solid var(--border-md);width:34px;height:34px;color:var(--navy);font:inherit;cursor:pointer;background:#fff;border-radius:50%;font-weight:900}.ad-vocab-actions button.active{background:var(--navy);color:#fff}.ad-feature-band,.ad-campaign-panel{background:var(--paper);padding:84px 60px}.ad-feature-inner,.ad-panel-inner,.ad-operation-inner{max-width:1120px;margin:0 auto}.ad-feature-heading{max-width:660px;margin-bottom:36px}.ad-feature-heading h2,.ad-operation-copy h2,.ad-panel-inner h2,.ad-final-cta h2{color:var(--navy);font-family:var(--font-noto-serif-jp), "Noto Serif JP", serif;margin:0;font-size:34px;font-weight:900;line-height:1.35}.ad-feature-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.ad-feature-card{border:1px solid var(--border);background:#fff;border-radius:8px;padding:24px}.ad-feature-card span{color:var(--red);letter-spacing:2px;font-size:11px;font-weight:900}.ad-feature-card h3{color:var(--navy);margin:14px 0 8px;font-size:18px;line-height:1.45}.ad-feature-card p,.ad-operation-copy p,.ad-final-cta p{color:var(--soft);margin:0;font-size:14px;line-height:1.9}.ad-operation-band{background:var(--cream);padding:84px 60px}.ad-operation-inner{grid-template-columns:minmax(0,1fr) 420px;align-items:center;gap:48px;display:grid}.ad-operation-copy p{max-width:620px;margin-top:18px}.ad-operation-steps{border-top:2px solid var(--navy)}.ad-operation-steps div{border-bottom:1px solid var(--border-md);grid-template-columns:72px 1fr;align-items:center;gap:16px;min-height:68px;display:grid}.ad-operation-steps strong{color:var(--red);font-family:var(--font-dm-serif), "DM Serif Display", serif;font-size:30px;line-height:1}.ad-operation-steps span{color:var(--navy);font-size:16px;font-weight:900}.ad-panel-inner{grid-template-columns:320px 1fr;gap:44px;display:grid}.ad-campaign-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.ad-campaign-grid>div{border:1px solid var(--border);background:#fff;border-radius:8px;padding:22px}.ad-campaign-grid h3{color:var(--navy);margin:0 0 12px;font-size:16px}.ad-campaign-grid ul{margin:0;padding:0;list-style:none}.ad-campaign-grid li{color:var(--mid);gap:9px;font-size:13px;line-height:1.8;display:flex}.ad-campaign-grid li:before{content:"";background:var(--red);border-radius:50%;flex:none;width:5px;height:5px;margin-top:10px}.ad-final-cta{background:var(--navy);justify-content:space-between;align-items:center;gap:28px;padding:72px 60px;display:flex}.ad-final-cta h2{color:#fff}.ad-final-cta p{color:#ffffff8f;margin-top:10px}@media (max-width:1040px){.ad-hero{min-height:auto;padding:96px 28px 44px}.ad-hero h1{font-size:40px}.ad-hero-demo-wrap{width:100%;max-width:620px;margin-top:36px;position:relative;bottom:auto;right:auto}.ad-feature-grid,.ad-campaign-grid,.ad-panel-inner,.ad-operation-inner{grid-template-columns:1fr}}@media (max-width:720px){.ad-nav{height:56px;padding:0 14px}.ad-nav-logo img{height:24px}.ad-nav-links a{display:none}.ad-nav-links button{padding:8px 10px;font-size:12px}.ad-hero{padding:84px 18px 34px}.ad-hero h1{font-size:32px}.ad-lead{font-size:14px}.ad-proof-row span,.ad-primary-cta,.ad-secondary-cta{width:100%}.ad-feature-band,.ad-operation-band,.ad-campaign-panel,.ad-final-cta{padding:56px 18px}.ad-feature-heading h2,.ad-operation-copy h2,.ad-panel-inner h2,.ad-final-cta h2{font-size:27px}.ad-detail-strip{grid-template-columns:1fr}.ad-flashcard{min-height:190px;padding:20px}.ad-flashcard strong{font-size:28px}.ad-final-cta{flex-direction:column;align-items:stretch}}.ad-autoplay-section{background:linear-gradient(180deg, var(--paper) 0%, var(--paper-d) 100%);padding:80px 24px}.ad-autoplay-inner{grid-template-columns:1fr 1.4fr;align-items:center;gap:48px;max-width:1080px;margin:0 auto;display:grid}.ad-autoplay-copy h2{font-family:var(--font-noto-serif-jp), "Noto Serif JP", serif;color:var(--navy);margin:0 0 16px;font-size:clamp(28px,3.4vw,40px);font-weight:700;line-height:1.35}.ad-autoplay-copy .ad-section-kicker{letter-spacing:.18em;color:var(--red);text-transform:uppercase;margin:0 0 12px;font-family:DM Serif Display,serif;font-size:12px}.ad-autoplay-copy p{color:var(--navy);opacity:.82;margin:0 0 18px;font-size:15px;line-height:1.75}.ad-autoplay-copy ul{gap:10px;margin:0;padding:0;list-style:none;display:grid}.ad-autoplay-copy li{color:var(--navy);opacity:.85;padding-left:22px;font-size:14px;position:relative}.ad-autoplay-copy li:before{content:"◆";color:var(--gold);font-size:11px;position:absolute;top:1px;left:0}.ad-autoplay-frame{transition:transform .6s cubic-bezier(.2,.8,.2,1);position:relative;transform:perspective(1200px)rotateY(-2deg)rotateX(1deg);box-shadow:0 20px 60px #1a274424,0 1px #1a27440a}.ad-autoplay-frame:hover{transform:perspective(1200px)rotateY(0)rotateX(0)translateY(-4px)}.ad-autoplay-badge{color:var(--red);letter-spacing:.04em;background:#c8371a14;border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:11px;font-weight:600;display:inline-flex}.ad-autoplay-dot{background:var(--red);border-radius:50%;width:6px;height:6px;animation:1.4s ease-in-out infinite adDotPulse}@keyframes adDotPulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.4)}}.ad-gold-flash{animation:.55s ease-out adGoldFlash;position:relative}.ad-gold-flash:after{content:"";pointer-events:none;background:radial-gradient(#d4a01759 0%,#0000 70%);border-radius:6px;animation:.55s ease-out adGoldGlow;position:absolute;inset:-4px -8px}@keyframes adGoldFlash{0%{color:var(--gold)}to{color:inherit}}@keyframes adGoldGlow{0%{opacity:1;transform:scale(.85)}to{opacity:0;transform:scale(1.3)}}.ad-autoplay-pop{animation:.35s cubic-bezier(.34,1.56,.64,1) adPopRise}@keyframes adPopRise{0%{opacity:0;transform:translateY(8px)scale(.92)}to{opacity:1;transform:translateY(0)scale(1)}}.ad-cursor-indicator{pointer-events:none;width:32px;height:32px;position:absolute;bottom:18px;right:18px}.ad-cursor-dot{background:var(--red);border-radius:50%;animation:1s infinite adCursorBlink;position:absolute;inset:12px;box-shadow:0 0 12px #c8371a99}.ad-cursor-pulse{background:#c8371a59;border-radius:50%;animation:1.6s ease-out infinite adCursorRipple;position:absolute;inset:0}@keyframes adCursorBlink{0%,to{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.85)}}@keyframes adCursorRipple{0%{opacity:.6;transform:scale(.5)}to{opacity:0;transform:scale(1.8)}}.ad-card{filter:drop-shadow(0 24px 48px #1a27442e);transition:transform .5s cubic-bezier(.34,1.56,.64,1),opacity .4s;position:relative}.ad-card-exiting{opacity:0;transform:translate(60px,-40px)rotate(8deg)scale(.85)}.ad-card .yt-tryit-card-inner{transition:transform .85s cubic-bezier(.65,0,.25,1)}.ad-card .yt-tryit-card-inner.flipped{animation:.85s cubic-bezier(.65,0,.25,1) adCardSpin;transform:rotateY(180deg)}@keyframes adCardSpin{0%{transform:rotateY(0)}60%{transform:rotateY(220deg)}to{transform:rotateY(180deg)}}.ad-card-hint{color:var(--soft);letter-spacing:.08em;margin-top:14px;font-size:11px;animation:1.6s ease-in-out infinite adHintFade;display:block}@keyframes adHintFade{0%,to{opacity:.45}50%{opacity:1}}.ad-rating-row{animation:.4s ease-out adRowRise}@keyframes adRowRise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.ad-rating-slot{opacity:0;animation:.35s ease-out forwards adSlotPop;display:inline-block}@keyframes adSlotPop{0%{opacity:0;transform:translateY(8px)scale(.94)}to{opacity:1;transform:translateY(0)scale(1)}}.ad-rating-slot.active{z-index:2;position:relative}.ad-rating-slot.active .np-fc-rv-rate{transition:transform .25s,box-shadow .25s;transform:scale(1.08);box-shadow:0 0 0 4px #22c55e33,0 8px 18px #22c55e40}.ad-rating-slot.active:before{content:"";pointer-events:none;z-index:-1;background:#22c55e24;border-radius:14px;animation:.75s ease-out forwards adRatingRipple;position:absolute;inset:-8px}@keyframes adRatingRipple{0%{opacity:1;transform:scale(.7)}to{opacity:0;transform:scale(1.4)}}.ad-autoplay-headline{text-align:center;margin-bottom:36px}.ad-autoplay-headline h2{font-family:var(--font-noto-serif-jp), "Noto Serif JP", serif;color:var(--navy);margin:8px 0;font-size:clamp(28px,3.4vw,40px);font-weight:700}.ad-autoplay-headline p{color:var(--navy);opacity:.72;max-width:620px;margin:0 auto;font-size:15px}@media (max-width:820px){.ad-autoplay-inner{grid-template-columns:1fr;gap:28px}.ad-autoplay-frame{transform:none}.ad-autoplay-frame:hover{transform:translateY(-2px)}}@media (prefers-reduced-motion:reduce){.ad-autoplay-dot,.ad-gold-flash,.ad-gold-flash:after,.ad-autoplay-pop,.ad-cursor-dot,.ad-cursor-pulse,.ad-card,.ad-card .yt-tryit-card-inner.flipped,.ad-card-hint,.ad-rating-row,.ad-rating-slot,.ad-rating-slot.active:before{transition:none!important;animation:none!important}.ad-autoplay-frame{transform:none!important}}