:root{--blue:#1928ec;--ink:#11172b;--pale:#eff2ff;--line:#d9deeb;--muted:#535d72}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:#fff;color:var(--ink);font:16px/1.75 Arial,'Microsoft JhengHei',sans-serif}a{color:inherit}a:focus-visible,summary:focus-visible{outline:3px solid #ff9700;outline-offset:6px}.wrap{width:min(1180px,calc(100% - 64px));margin:auto}.skip{position:absolute;left:16px;top:-80px;background:white;padding:12px;z-index:2}.skip:focus{top:10px}.nav{display:flex;justify-content:space-between;align-items:center;padding:25px 0;border-bottom:1px solid var(--line)}.brand{text-decoration:none;font-size:26px;font-weight:800;display:flex;align-items:center;gap:18px}.brand span{font-size:12px;letter-spacing:.12em;max-width:105px;line-height:1.5}nav{display:flex;gap:28px}nav a{text-decoration:none;font-size:14px}nav a:hover{color:var(--blue)}.hero{padding:72px 0 0}.eyebrow{color:var(--blue);font-size:14px;letter-spacing:.08em;margin:0 0 25px;font-weight:700}h1{font-size:clamp(40px,6vw,78px);line-height:1.28;letter-spacing:-.045em;margin:0 0 32px}h1 span{color:var(--blue)}.hero-bottom{display:flex;align-items:center;justify-content:space-between;gap:30px}.hero-bottom p{font-size:19px;line-height:1.9;color:var(--muted)}.button{display:inline-flex;justify-content:center;align-items:center;gap:45px;background:var(--blue);color:#fff;border:0;text-decoration:none;padding:17px 26px;font-size:16px;font-weight:700;transition:background .2s}.button:hover{background:#0c18b9}.button span{font-size:24px}.hero-line{display:flex;gap:50px;border-top:1px solid var(--line);padding:24px 0;font-size:14px;margin-top:45px}.sample-section{background:var(--pale);padding:65px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:32px}h2{font-size:clamp(28px,3.5vw,42px);line-height:1.4;letter-spacing:-.025em;margin:0 0 16px}.muted{color:var(--muted);font-size:16px}.sample{background:#fff;border:1px solid #c4cdec;box-shadow:0 16px 40px #2133610b;padding:34px 40px;color:#143439}.sample-top{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid #d6e2df;padding-bottom:20px}.sample-top strong{font-size:24px;letter-spacing:.12em}.sample-top span{font-size:12px;color:#526660}.sample-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:60px;align-items:center;padding:45px 0}.sample-label{font-size:14px;font-weight:700}.sample h3{font-size:clamp(28px,3.5vw,40px);line-height:1.5;letter-spacing:-.02em;margin:18px 0}.sample-en{font-size:18px;line-height:1.5}.english{color:#596d69;font-size:14px}.sample-button{display:inline-block;background:#143439;color:#fff;padding:13px 20px;font-size:14px;text-decoration:none;margin-top:13px}.lesson-card{background:#f1f7f5;padding:30px}.lesson-card>span{font-size:13px;letter-spacing:.05em}.lesson-card>strong{display:block;font-size:64px;line-height:1.5}.lesson-card small{font-size:14px}.lesson-card p{font-size:14px}.lesson-card hr{border:0;border-top:1px solid #bacdc6;margin:24px 0}.price-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.price-row b{font-size:26px}.price-row span{font-size:12px}.small{font-size:13px;line-height:1.8;color:var(--muted)}details{border-top:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-weight:700;line-height:1.7}details p{margin:15px 0 0;max-width:850px}.sample-faq details{padding:16px 0;font-size:14px}.sample-caption{display:flex;gap:32px;font-size:14px;color:var(--muted);padding-top:20px}.offer{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding:80px 0}.offer-card{border:1px solid var(--ink);padding:35px}.offer-price{display:flex;justify-content:space-between;gap:15px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:22px}.offer-price span{font-size:14px}.offer-price strong{font-size:56px;letter-spacing:-.04em;line-height:1.2}.offer-price small{font-size:18px;margin-right:5px}.offer-card ul{list-style:none;padding:0;margin:24px 0}.offer-card li{padding:6px 0 6px 25px;position:relative}.offer-card li:before{content:'✓';position:absolute;left:0;color:var(--blue)}.terms{font-size:14px;color:var(--muted)}.wide{width:100%;margin-top:15px}.process{padding:45px 0 65px;border-top:1px solid var(--line)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}.steps article>span{font-size:36px;color:var(--blue);font-weight:700}.steps h3{font-size:22px;margin:10px 0}.steps p{color:var(--muted);margin:0}.faq{padding:55px 0 70px;border-top:1px solid var(--line)}.faq h2{margin-bottom:30px}.faq details{padding:22px 0}.faq details p{color:var(--muted)}footer{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);padding:30px 0 40px}footer p,footer span{font-size:13px;color:var(--muted)}@media(max-width:760px){.wrap{width:calc(100% - 36px)}.nav{align-items:start;gap:18px}.brand{font-size:23px;gap:10px}.brand span{font-size:12px;max-width:85px}nav{flex-direction:column;gap:4px}nav a{font-size:13px}.hero{padding-top:44px}.hero-bottom{display:block}.hero-bottom p{font-size:17px}.hero-bottom .button{margin-top:15px}.hero-line{gap:14px;justify-content:space-between;font-size:12px;flex-wrap:wrap;margin-top:35px}.sample-section{padding:42px 0}.section-heading{display:block}.sample{padding:24px 20px}.sample-top{align-items:start;flex-direction:column;gap:8px}.sample-grid{grid-template-columns:1fr;gap:25px;padding:20px 0 30px}.lesson-card{padding:24px}.sample-caption{gap:10px 22px;flex-wrap:wrap;font-size:13px}.offer{grid-template-columns:1fr;gap:25px;padding:55px 0}.offer-card{padding:25px}.offer-price strong{font-size:48px}.steps{grid-template-columns:1fr;gap:25px}.process{padding-bottom:45px}.steps article{border-bottom:1px solid var(--line);padding-bottom:22px}.faq{padding-top:35px}footer{display:block}footer p{margin:8px 0}.desktop{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}